./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/ldv-regression/test_while_int.i --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/ldv-regression/test_while_int.i -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 f3aef2cb0383bc51116609eb7d5762e5307f0f48dd90c41df34c9f2444e8da09 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:09:41,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:09:41,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:09:42,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:09:42,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:09:42,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:09:42,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:09:42,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:09:42,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:09:42,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:09:42,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:09:42,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:09:42,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:09:42,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:09:42,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:09:42,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:09:42,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:09:42,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:09:42,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:09:42,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:09:42,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:09:42,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:09:42,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:09:42,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:09:42,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:09:42,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:09:42,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:09:42,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:09:42,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:09:42,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:09:42,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:09:42,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:09:42,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:09:42,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:09:42,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:09:42,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:09:42,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:09:42,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:09:42,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:09:42,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:09:42,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:09:42,037 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:09:42,055 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:09:42,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:09:42,061 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:09:42,061 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:09:42,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:09:42,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:09:42,063 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:09:42,063 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:09:42,063 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:09:42,063 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:09:42,064 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:09:42,064 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:09:42,064 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:09:42,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:09:42,065 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:09:42,065 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:09:42,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:09:42,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:09:42,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:09:42,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:09:42,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:09:42,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:09:42,066 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:09:42,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:09:42,066 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:09:42,066 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:09:42,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:09:42,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:09:42,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:09:42,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:09:42,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:09:42,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:09:42,068 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:09:42,068 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3aef2cb0383bc51116609eb7d5762e5307f0f48dd90c41df34c9f2444e8da09 [2021-12-15 17:09:42,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:09:42,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:09:42,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:09:42,353 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:09:42,367 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:09:42,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test_while_int.i [2021-12-15 17:09:42,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5068f63e0/345866dc49bd44d2ac0b9fe4d268b02e/FLAG6a9296634 [2021-12-15 17:09:42,760 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:09:42,760 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_while_int.i [2021-12-15 17:09:42,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5068f63e0/345866dc49bd44d2ac0b9fe4d268b02e/FLAG6a9296634 [2021-12-15 17:09:42,772 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5068f63e0/345866dc49bd44d2ac0b9fe4d268b02e [2021-12-15 17:09:42,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:09:42,774 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:09:42,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:09:42,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:09:42,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:09:42,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:09:42" (1/1) ... [2021-12-15 17:09:42,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55c2b87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:42, skipping insertion in model container [2021-12-15 17:09:42,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:09:42" (1/1) ... [2021-12-15 17:09:42,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:09:42,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:09:42,920 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/ldv-regression/test_while_int.i[296,309] [2021-12-15 17:09:42,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:09:42,938 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:09:42,945 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/ldv-regression/test_while_int.i[296,309] [2021-12-15 17:09:42,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:09:42,955 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:09:42,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:42 WrapperNode [2021-12-15 17:09:42,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:09:42,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:09:42,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:09:42,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:09:42,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:42" (1/1) ... [2021-12-15 17:09:42,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:42" (1/1) ... [2021-12-15 17:09:42,976 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 27 [2021-12-15 17:09:42,976 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:09:42,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:09:42,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:09:42,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:09:42,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:42" (1/1) ... [2021-12-15 17:09:42,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:42" (1/1) ... [2021-12-15 17:09:42,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:42" (1/1) ... [2021-12-15 17:09:42,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:42" (1/1) ... [2021-12-15 17:09:42,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:42" (1/1) ... [2021-12-15 17:09:42,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:42" (1/1) ... [2021-12-15 17:09:42,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:42" (1/1) ... [2021-12-15 17:09:42,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:09:42,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:09:42,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:09:42,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:09:42,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:42" (1/1) ... [2021-12-15 17:09:42,995 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:09:43,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:09:43,011 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 17:09:43,019 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 17:09:43,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:09:43,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:09:43,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:09:43,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:09:43,075 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:09:43,076 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:09:43,135 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:09:43,139 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:09:43,139 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 17:09:43,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:09:43 BoogieIcfgContainer [2021-12-15 17:09:43,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:09:43,141 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:09:43,141 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:09:43,144 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:09:43,144 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:09:43,144 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:09:42" (1/3) ... [2021-12-15 17:09:43,145 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60958f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:09:43, skipping insertion in model container [2021-12-15 17:09:43,145 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:09:43,145 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:42" (2/3) ... [2021-12-15 17:09:43,145 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60958f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:09:43, skipping insertion in model container [2021-12-15 17:09:43,145 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:09:43,145 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:09:43" (3/3) ... [2021-12-15 17:09:43,146 INFO L388 chiAutomizerObserver]: Analyzing ICFG test_while_int.i [2021-12-15 17:09:43,175 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:09:43,175 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:09:43,176 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:09:43,176 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:09:43,176 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:09:43,176 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:09:43,176 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:09:43,176 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:09:43,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 17:09:43,200 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-15 17:09:43,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:09:43,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:09:43,204 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:09:43,204 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-15 17:09:43,205 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:09:43,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 17:09:43,206 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-15 17:09:43,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:09:43,206 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:09:43,206 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:09:43,206 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-15 17:09:43,211 INFO L791 eck$LassoCheckResult]: Stem: 4#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(17, 2);call #Ultimate.allocInit(12, 3); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post4#1, main_~i~0#1;main_~i~0#1 := 0; 7#L26-2true [2021-12-15 17:09:43,211 INFO L793 eck$LassoCheckResult]: Loop: 7#L26-2true assume !!(main_~i~0#1 < 5);main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1;assume { :begin_inline_check_error } true;check_error_#in~b#1 := (if 3 != main_~i~0#1 then 1 else 0);havoc check_error_~b#1;check_error_~b#1 := check_error_#in~b#1; 11#L20true assume 0 != check_error_~b#1; 9#L19true assume { :end_inline_check_error } true; 7#L26-2true [2021-12-15 17:09:43,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:09:43,217 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-15 17:09:43,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:09:43,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6340702] [2021-12-15 17:09:43,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:09:43,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:09:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:09:43,319 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:09:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:09:43,353 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:09:43,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:09:43,355 INFO L85 PathProgramCache]: Analyzing trace with hash 40818, now seen corresponding path program 1 times [2021-12-15 17:09:43,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:09:43,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278269775] [2021-12-15 17:09:43,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:09:43,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:09:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:09:43,377 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:09:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:09:43,382 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:09:43,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:09:43,383 INFO L85 PathProgramCache]: Analyzing trace with hash 28699760, now seen corresponding path program 1 times [2021-12-15 17:09:43,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:09:43,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479362487] [2021-12-15 17:09:43,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:09:43,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:09:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:09:43,409 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:09:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:09:43,423 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:09:43,540 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 17:09:43,546 INFO L158 Benchmark]: Toolchain (without parser) took 770.40ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 38.9MB in the beginning and 68.3MB in the end (delta: -29.4MB). Peak memory consumption was 229.5kB. Max. memory is 16.1GB. [2021-12-15 17:09:43,547 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 90.2MB. Free memory was 54.9MB in the beginning and 54.9MB in the end (delta: 78.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:09:43,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.33ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 38.7MB in the beginning and 97.6MB in the end (delta: -58.9MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2021-12-15 17:09:43,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.24ms. Allocated memory is still 119.5MB. Free memory was 97.2MB in the beginning and 96.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:09:43,549 INFO L158 Benchmark]: Boogie Preprocessor took 11.45ms. Allocated memory is still 119.5MB. Free memory was 96.0MB in the beginning and 95.1MB in the end (delta: 943.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:09:43,550 INFO L158 Benchmark]: RCFGBuilder took 151.35ms. Allocated memory is still 119.5MB. Free memory was 95.1MB in the beginning and 86.2MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 17:09:43,551 INFO L158 Benchmark]: BuchiAutomizer took 403.40ms. Allocated memory is still 119.5MB. Free memory was 86.2MB in the beginning and 68.3MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-15 17:09:43,553 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 90.2MB. Free memory was 54.9MB in the beginning and 54.9MB in the end (delta: 78.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 175.33ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 38.7MB in the beginning and 97.6MB in the end (delta: -58.9MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.24ms. Allocated memory is still 119.5MB. Free memory was 97.2MB in the beginning and 96.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.45ms. Allocated memory is still 119.5MB. Free memory was 96.0MB in the beginning and 95.1MB in the end (delta: 943.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 151.35ms. Allocated memory is still 119.5MB. Free memory was 95.1MB in the beginning and 86.2MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 403.40ms. Allocated memory is still 119.5MB. Free memory was 86.2MB in the beginning and 68.3MB 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 17:09:43,582 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