./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.UNBOUNDED.pals.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/seq-mthreaded/pals_floodmax.4.1.ufo.UNBOUNDED.pals.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 75ad91d1ba346b49105baf3c8411bd3b92e43cc8020f63db454a4318afdf99c1 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:22:28,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:22:28,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:22:28,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:22:28,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:22:28,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:22:28,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:22:28,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:22:28,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:22:28,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:22:28,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:22:28,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:22:28,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:22:28,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:22:28,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:22:28,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:22:28,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:22:28,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:22:28,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:22:28,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:22:28,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:22:28,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:22:28,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:22:28,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:22:28,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:22:28,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:22:28,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:22:28,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:22:28,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:22:28,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:22:28,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:22:28,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:22:28,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:22:28,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:22:28,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:22:28,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:22:28,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:22:28,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:22:28,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:22:28,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:22:28,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:22:28,115 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:22:28,161 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:22:28,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:22:28,162 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:22:28,162 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:22:28,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:22:28,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:22:28,164 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:22:28,164 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:22:28,164 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:22:28,164 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:22:28,165 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:22:28,165 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:22:28,165 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:22:28,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:22:28,165 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:22:28,166 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:22:28,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:22:28,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:22:28,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:22:28,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:22:28,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:22:28,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:22:28,167 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:22:28,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:22:28,167 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:22:28,168 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:22:28,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:22:28,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:22:28,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:22:28,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:22:28,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:22:28,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:22:28,170 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:22:28,170 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75ad91d1ba346b49105baf3c8411bd3b92e43cc8020f63db454a4318afdf99c1 [2021-12-15 17:22:28,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:22:28,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:22:28,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:22:28,461 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:22:28,462 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:22:28,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c [2021-12-15 17:22:28,517 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c4e535f7/471a9c31401547b68e35f9940768a82a/FLAGd4ddffbd7 [2021-12-15 17:22:29,022 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:22:29,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c [2021-12-15 17:22:29,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c4e535f7/471a9c31401547b68e35f9940768a82a/FLAGd4ddffbd7 [2021-12-15 17:22:29,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c4e535f7/471a9c31401547b68e35f9940768a82a [2021-12-15 17:22:29,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:22:29,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:22:29,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:22:29,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:22:29,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:22:29,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:22:29" (1/1) ... [2021-12-15 17:22:29,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37513fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:29, skipping insertion in model container [2021-12-15 17:22:29,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:22:29" (1/1) ... [2021-12-15 17:22:29,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:22:29,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:22:29,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c[24372,24385] [2021-12-15 17:22:29,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:22:29,818 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:22:29,879 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/seq-mthreaded/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c[24372,24385] [2021-12-15 17:22:29,880 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:22:29,893 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:22:29,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:29 WrapperNode [2021-12-15 17:22:29,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:22:29,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:22:29,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:22:29,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:22:29,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:29" (1/1) ... [2021-12-15 17:22:29,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:29" (1/1) ... [2021-12-15 17:22:29,972 INFO L137 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 906 [2021-12-15 17:22:29,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:22:29,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:22:29,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:22:29,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:22:29,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:29" (1/1) ... [2021-12-15 17:22:29,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:29" (1/1) ... [2021-12-15 17:22:29,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:29" (1/1) ... [2021-12-15 17:22:30,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:29" (1/1) ... [2021-12-15 17:22:30,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:29" (1/1) ... [2021-12-15 17:22:30,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:29" (1/1) ... [2021-12-15 17:22:30,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:29" (1/1) ... [2021-12-15 17:22:30,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:22:30,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:22:30,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:22:30,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:22:30,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:29" (1/1) ... [2021-12-15 17:22:30,063 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:22:30,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:22:30,101 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 17:22:30,128 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 17:22:30,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:22:30,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:22:30,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:22:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:22:30,299 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:22:30,300 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:22:31,074 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:22:31,090 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:22:31,091 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 17:22:31,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:22:31 BoogieIcfgContainer [2021-12-15 17:22:31,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:22:31,096 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:22:31,096 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:22:31,099 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:22:31,100 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:22:31,100 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:22:29" (1/3) ... [2021-12-15 17:22:31,101 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32840231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:22:31, skipping insertion in model container [2021-12-15 17:22:31,101 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:22:31,101 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:29" (2/3) ... [2021-12-15 17:22:31,102 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32840231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:22:31, skipping insertion in model container [2021-12-15 17:22:31,102 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:22:31,102 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:22:31" (3/3) ... [2021-12-15 17:22:31,103 INFO L388 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.4.1.ufo.UNBOUNDED.pals.c [2021-12-15 17:22:31,140 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:22:31,140 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:22:31,140 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:22:31,140 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:22:31,141 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:22:31,141 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:22:31,141 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:22:31,141 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:22:31,159 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 299 states, 298 states have (on average 1.7885906040268456) internal successors, (533), 298 states have internal predecessors, (533), 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 17:22:31,194 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 115 [2021-12-15 17:22:31,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:22:31,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:22:31,205 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:22:31,205 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:22:31,205 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:22:31,216 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 299 states, 298 states have (on average 1.7885906040268456) internal successors, (533), 298 states have internal predecessors, (533), 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 17:22:31,228 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 115 [2021-12-15 17:22:31,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:22:31,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:22:31,238 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:22:31,239 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:22:31,253 INFO L791 eck$LassoCheckResult]: Stem: 289#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(39, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 178#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~nondet44#1, main_#t~nondet45#1, main_#t~nondet46#1, main_#t~nondet47#1, main_#t~nondet48#1, main_#t~nondet49#1, main_#t~nondet50#1, main_#t~nondet51#1, main_#t~nondet52#1, main_#t~nondet53#1, main_#t~nondet54#1, main_#t~nondet55#1, main_#t~ret56#1, main_#t~ret57#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~ep12~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~ep13~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~ep14~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~ep21~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~ep23~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~ep24~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~ep31~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~ep32~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~ep34~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~ep41~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~ep42~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~ep43~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~id1~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~r1~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~st1~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~nl1~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~m1~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~max1~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~mode1~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~id2~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~r2~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~st2~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~nl2~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~m2~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~max2~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~mode2~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~id3~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~r3~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;~st3~0 := main_#t~nondet44#1;havoc main_#t~nondet44#1;~nl3~0 := main_#t~nondet45#1;havoc main_#t~nondet45#1;~m3~0 := main_#t~nondet46#1;havoc main_#t~nondet46#1;~max3~0 := main_#t~nondet47#1;havoc main_#t~nondet47#1;~mode3~0 := main_#t~nondet48#1;havoc main_#t~nondet48#1;~id4~0 := main_#t~nondet49#1;havoc main_#t~nondet49#1;~r4~0 := main_#t~nondet50#1;havoc main_#t~nondet50#1;~st4~0 := main_#t~nondet51#1;havoc main_#t~nondet51#1;~nl4~0 := main_#t~nondet52#1;havoc main_#t~nondet52#1;~m4~0 := main_#t~nondet53#1;havoc main_#t~nondet53#1;~max4~0 := main_#t~nondet54#1;havoc main_#t~nondet54#1;~mode4~0 := main_#t~nondet55#1;havoc main_#t~nondet55#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r141~0#1, init_~r211~0#1, init_~r231~0#1, init_~r241~0#1, init_~r311~0#1, init_~r321~0#1, init_~r341~0#1, init_~r411~0#1, init_~r421~0#1, init_~r431~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r142~0#1, init_~tmp___1~0#1, init_~r212~0#1, init_~tmp___2~0#1, init_~r232~0#1, init_~tmp___3~0#1, init_~r242~0#1, init_~tmp___4~0#1, init_~r312~0#1, init_~tmp___5~0#1, init_~r322~0#1, init_~tmp___6~0#1, init_~r342~0#1, init_~tmp___7~0#1, init_~r412~0#1, init_~tmp___8~0#1, init_~r422~0#1, init_~tmp___9~0#1, init_~r432~0#1, init_~tmp___10~0#1, init_~r123~0#1, init_~tmp___11~0#1, init_~r133~0#1, init_~tmp___12~0#1, init_~r143~0#1, init_~tmp___13~0#1, init_~r213~0#1, init_~tmp___14~0#1, init_~r233~0#1, init_~tmp___15~0#1, init_~r243~0#1, init_~tmp___16~0#1, init_~r313~0#1, init_~tmp___17~0#1, init_~r323~0#1, init_~tmp___18~0#1, init_~r343~0#1, init_~tmp___19~0#1, init_~r413~0#1, init_~tmp___20~0#1, init_~r423~0#1, init_~tmp___21~0#1, init_~r433~0#1, init_~tmp___22~0#1, init_~tmp___23~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r141~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r241~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r341~0#1;havoc init_~r411~0#1;havoc init_~r421~0#1;havoc init_~r431~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r142~0#1;havoc init_~tmp___1~0#1;havoc init_~r212~0#1;havoc init_~tmp___2~0#1;havoc init_~r232~0#1;havoc init_~tmp___3~0#1;havoc init_~r242~0#1;havoc init_~tmp___4~0#1;havoc init_~r312~0#1;havoc init_~tmp___5~0#1;havoc init_~r322~0#1;havoc init_~tmp___6~0#1;havoc init_~r342~0#1;havoc init_~tmp___7~0#1;havoc init_~r412~0#1;havoc init_~tmp___8~0#1;havoc init_~r422~0#1;havoc init_~tmp___9~0#1;havoc init_~r432~0#1;havoc init_~tmp___10~0#1;havoc init_~r123~0#1;havoc init_~tmp___11~0#1;havoc init_~r133~0#1;havoc init_~tmp___12~0#1;havoc init_~r143~0#1;havoc init_~tmp___13~0#1;havoc init_~r213~0#1;havoc init_~tmp___14~0#1;havoc init_~r233~0#1;havoc init_~tmp___15~0#1;havoc init_~r243~0#1;havoc init_~tmp___16~0#1;havoc init_~r313~0#1;havoc init_~tmp___17~0#1;havoc init_~r323~0#1;havoc init_~tmp___18~0#1;havoc init_~r343~0#1;havoc init_~tmp___19~0#1;havoc init_~r413~0#1;havoc init_~tmp___20~0#1;havoc init_~r423~0#1;havoc init_~tmp___21~0#1;havoc init_~r433~0#1;havoc init_~tmp___22~0#1;havoc init_~tmp___23~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r141~0#1 := ~ep14~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r241~0#1 := ~ep24~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0;init_~r341~0#1 := ~ep34~0;init_~r411~0#1 := ~ep41~0;init_~r421~0#1 := ~ep42~0;init_~r431~0#1 := ~ep43~0; 177#L406true assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 46#L417true init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 250#L427true assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 252#L438true init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 137#L448true assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 7#L459true init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 14#L469true assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 53#L480true init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 161#L490true assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 187#L501true init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 217#L511true assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 263#L522true init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 61#L532true assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 52#L543true init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 232#L553true assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 16#L564true init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 54#L574true assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 230#L585true init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 301#L595true assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 160#L606true init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 267#L616true assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 57#L627true init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 116#L637true assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 300#L648true init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 169#L658true assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 121#L669true init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 264#L679true assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 194#L690true init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 67#L700true assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 180#L711true init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 91#L721true assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 170#L732true init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 44#L742true assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 140#L753true init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 218#L763true assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 246#L774true init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 286#L784true assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 151#L795true init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 90#L805true assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 219#L816true init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 55#L826true assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 124#L837true init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 270#L847true assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 229#L858true init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 30#L868true assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 100#L879true init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 11#L889true assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 247#L900true init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 21#L910true assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 18#L910-1true init_#res#1 := init_~tmp___23~0#1; 101#L1031true main_#t~ret56#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret56#1;havoc main_#t~ret56#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 50#L22true assume !(0 == assume_abort_if_not_~cond#1); 110#L21true assume { :end_inline_assume_abort_if_not } true;~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 3#L1168-2true [2021-12-15 17:22:31,258 INFO L793 eck$LassoCheckResult]: Loop: 3#L1168-2true assume !false;assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_#t~ite5#1, node1_#t~ite6#1; 76#L110true assume !(0 != ~mode1~0 % 256); 66#L145true assume !(~r1~0 % 256 < 3); 74#L145-1true ~mode1~0 := 1; 49#L110-2true assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite7#1, node2_#t~ite8#1, node2_#t~ite9#1; 103#L166true assume !(0 != ~mode2~0 % 256); 205#L201true assume !(~r2~0 % 256 < 3); 254#L201-1true ~mode2~0 := 1; 249#L166-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite10#1, node3_#t~ite11#1, node3_#t~ite12#1; 92#L222true assume !(0 != ~mode3~0 % 256); 136#L257true assume !(~r3~0 % 256 < 3); 60#L257-1true ~mode3~0 := 1; 13#L222-2true assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite13#1, node4_#t~ite14#1, node4_#t~ite15#1; 144#L278true assume !(0 != ~mode4~0 % 256); 27#L313true assume !(~r4~0 % 256 < 3); 129#L313-1true ~mode4~0 := 1; 148#L278-2true assume { :end_inline_node4 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 152#L1039true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1#1 := 0; 262#L1039-1true check_#res#1 := check_~tmp~1#1; 71#L1091true main_#t~ret57#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret57#1;havoc main_#t~ret57#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 41#L1210true assume !(0 == assert_~arg#1 % 256); 39#L1205true assume { :end_inline_assert } true; 3#L1168-2true [2021-12-15 17:22:31,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:31,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1972521662, now seen corresponding path program 1 times [2021-12-15 17:22:31,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:31,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268097786] [2021-12-15 17:22:31,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:31,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:22:31,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:22:31,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:22:31,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268097786] [2021-12-15 17:22:31,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268097786] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:22:31,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:22:31,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:22:31,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240698524] [2021-12-15 17:22:31,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:22:31,665 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:22:31,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:31,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1313492339, now seen corresponding path program 1 times [2021-12-15 17:22:31,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:31,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878810669] [2021-12-15 17:22:31,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:31,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:22:31,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:22:31,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:22:31,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878810669] [2021-12-15 17:22:31,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878810669] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:22:31,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:22:31,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:22:31,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862532314] [2021-12-15 17:22:31,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:22:31,833 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:22:31,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:22:31,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 17:22:31,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 17:22:31,887 INFO L87 Difference]: Start difference. First operand has 299 states, 298 states have (on average 1.7885906040268456) internal successors, (533), 298 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 17:22:31,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:22:31,991 INFO L93 Difference]: Finished difference Result 299 states and 529 transitions. [2021-12-15 17:22:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 17:22:31,997 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 299 states and 529 transitions. [2021-12-15 17:22:32,007 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 114 [2021-12-15 17:22:32,019 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 299 states to 294 states and 516 transitions. [2021-12-15 17:22:32,022 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 294 [2021-12-15 17:22:32,024 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 294 [2021-12-15 17:22:32,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 294 states and 516 transitions. [2021-12-15 17:22:32,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:22:32,031 INFO L681 BuchiCegarLoop]: Abstraction has 294 states and 516 transitions. [2021-12-15 17:22:32,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states and 516 transitions. [2021-12-15 17:22:32,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2021-12-15 17:22:32,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 294 states have (on average 1.7551020408163265) internal successors, (516), 293 states have internal predecessors, (516), 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 17:22:32,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 516 transitions. [2021-12-15 17:22:32,088 INFO L704 BuchiCegarLoop]: Abstraction has 294 states and 516 transitions. [2021-12-15 17:22:32,088 INFO L587 BuchiCegarLoop]: Abstraction has 294 states and 516 transitions. [2021-12-15 17:22:32,088 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:22:32,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 294 states and 516 transitions. [2021-12-15 17:22:32,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 114 [2021-12-15 17:22:32,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:22:32,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:22:32,102 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:22:32,102 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:22:32,102 INFO L791 eck$LassoCheckResult]: Stem: 908#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(39, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 867#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~nondet44#1, main_#t~nondet45#1, main_#t~nondet46#1, main_#t~nondet47#1, main_#t~nondet48#1, main_#t~nondet49#1, main_#t~nondet50#1, main_#t~nondet51#1, main_#t~nondet52#1, main_#t~nondet53#1, main_#t~nondet54#1, main_#t~nondet55#1, main_#t~ret56#1, main_#t~ret57#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~ep12~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~ep13~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~ep14~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~ep21~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~ep23~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~ep24~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~ep31~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~ep32~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~ep34~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~ep41~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~ep42~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~ep43~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~id1~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~r1~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~st1~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~nl1~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~m1~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~max1~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~mode1~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~id2~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~r2~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~st2~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~nl2~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~m2~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~max2~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~mode2~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~id3~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~r3~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;~st3~0 := main_#t~nondet44#1;havoc main_#t~nondet44#1;~nl3~0 := main_#t~nondet45#1;havoc main_#t~nondet45#1;~m3~0 := main_#t~nondet46#1;havoc main_#t~nondet46#1;~max3~0 := main_#t~nondet47#1;havoc main_#t~nondet47#1;~mode3~0 := main_#t~nondet48#1;havoc main_#t~nondet48#1;~id4~0 := main_#t~nondet49#1;havoc main_#t~nondet49#1;~r4~0 := main_#t~nondet50#1;havoc main_#t~nondet50#1;~st4~0 := main_#t~nondet51#1;havoc main_#t~nondet51#1;~nl4~0 := main_#t~nondet52#1;havoc main_#t~nondet52#1;~m4~0 := main_#t~nondet53#1;havoc main_#t~nondet53#1;~max4~0 := main_#t~nondet54#1;havoc main_#t~nondet54#1;~mode4~0 := main_#t~nondet55#1;havoc main_#t~nondet55#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r141~0#1, init_~r211~0#1, init_~r231~0#1, init_~r241~0#1, init_~r311~0#1, init_~r321~0#1, init_~r341~0#1, init_~r411~0#1, init_~r421~0#1, init_~r431~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r142~0#1, init_~tmp___1~0#1, init_~r212~0#1, init_~tmp___2~0#1, init_~r232~0#1, init_~tmp___3~0#1, init_~r242~0#1, init_~tmp___4~0#1, init_~r312~0#1, init_~tmp___5~0#1, init_~r322~0#1, init_~tmp___6~0#1, init_~r342~0#1, init_~tmp___7~0#1, init_~r412~0#1, init_~tmp___8~0#1, init_~r422~0#1, init_~tmp___9~0#1, init_~r432~0#1, init_~tmp___10~0#1, init_~r123~0#1, init_~tmp___11~0#1, init_~r133~0#1, init_~tmp___12~0#1, init_~r143~0#1, init_~tmp___13~0#1, init_~r213~0#1, init_~tmp___14~0#1, init_~r233~0#1, init_~tmp___15~0#1, init_~r243~0#1, init_~tmp___16~0#1, init_~r313~0#1, init_~tmp___17~0#1, init_~r323~0#1, init_~tmp___18~0#1, init_~r343~0#1, init_~tmp___19~0#1, init_~r413~0#1, init_~tmp___20~0#1, init_~r423~0#1, init_~tmp___21~0#1, init_~r433~0#1, init_~tmp___22~0#1, init_~tmp___23~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r141~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r241~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r341~0#1;havoc init_~r411~0#1;havoc init_~r421~0#1;havoc init_~r431~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r142~0#1;havoc init_~tmp___1~0#1;havoc init_~r212~0#1;havoc init_~tmp___2~0#1;havoc init_~r232~0#1;havoc init_~tmp___3~0#1;havoc init_~r242~0#1;havoc init_~tmp___4~0#1;havoc init_~r312~0#1;havoc init_~tmp___5~0#1;havoc init_~r322~0#1;havoc init_~tmp___6~0#1;havoc init_~r342~0#1;havoc init_~tmp___7~0#1;havoc init_~r412~0#1;havoc init_~tmp___8~0#1;havoc init_~r422~0#1;havoc init_~tmp___9~0#1;havoc init_~r432~0#1;havoc init_~tmp___10~0#1;havoc init_~r123~0#1;havoc init_~tmp___11~0#1;havoc init_~r133~0#1;havoc init_~tmp___12~0#1;havoc init_~r143~0#1;havoc init_~tmp___13~0#1;havoc init_~r213~0#1;havoc init_~tmp___14~0#1;havoc init_~r233~0#1;havoc init_~tmp___15~0#1;havoc init_~r243~0#1;havoc init_~tmp___16~0#1;havoc init_~r313~0#1;havoc init_~tmp___17~0#1;havoc init_~r323~0#1;havoc init_~tmp___18~0#1;havoc init_~r343~0#1;havoc init_~tmp___19~0#1;havoc init_~r413~0#1;havoc init_~tmp___20~0#1;havoc init_~r423~0#1;havoc init_~tmp___21~0#1;havoc init_~r433~0#1;havoc init_~tmp___22~0#1;havoc init_~tmp___23~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r141~0#1 := ~ep14~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r241~0#1 := ~ep24~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0;init_~r341~0#1 := ~ep34~0;init_~r411~0#1 := ~ep41~0;init_~r421~0#1 := ~ep42~0;init_~r431~0#1 := ~ep43~0; 866#L406 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 656#L417 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 705#L427 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 843#L438 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 832#L448 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 626#L459 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 627#L469 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 644#L480 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 718#L490 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 707#L501 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 872#L511 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 709#L522 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 729#L532 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 716#L543 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 717#L553 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 650#L564 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 651#L574 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 719#L585 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 894#L595 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 691#L606 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 855#L616 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 723#L627 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 724#L637 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 804#L648 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 860#L658 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 685#L669 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 810#L679 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 699#L690 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 741#L700 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 742#L711 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 776#L721 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 632#L732 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 700#L742 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 701#L753 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 835#L763 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 858#L774 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 900#L784 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 783#L795 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 774#L805 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 737#L816 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 721#L826 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 646#L837 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 815#L847 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 818#L858 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 675#L868 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 676#L879 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 635#L889 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 636#L900 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 657#L910 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 620#L910-1 init_#res#1 := init_~tmp___23~0#1; 654#L1031 main_#t~ret56#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret56#1;havoc main_#t~ret56#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 712#L22 assume !(0 == assume_abort_if_not_~cond#1); 713#L21 assume { :end_inline_assume_abort_if_not } true;~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 616#L1168-2 [2021-12-15 17:22:32,103 INFO L793 eck$LassoCheckResult]: Loop: 616#L1168-2 assume !false;assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_#t~ite5#1, node1_#t~ite6#1; 617#L110 assume !(0 != ~mode1~0 % 256); 738#L145 assume !(~r1~0 % 256 < 3); 739#L145-1 ~mode1~0 := 1; 660#L110-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite7#1, node2_#t~ite8#1, node2_#t~ite9#1; 711#L166 assume !(0 != ~mode2~0 % 256); 789#L201 assume !(~r2~0 % 256 < 3); 877#L201-1 ~mode2~0 := 1; 901#L166-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite10#1, node3_#t~ite11#1, node3_#t~ite12#1; 777#L222 assume !(0 != ~mode3~0 % 256); 778#L257 assume !(~r3~0 % 256 < 3); 728#L257-1 ~mode3~0 := 1; 641#L222-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite13#1, node4_#t~ite14#1, node4_#t~ite15#1; 642#L278 assume !(0 != ~mode4~0 % 256); 668#L313 assume !(~r4~0 % 256 < 3); 670#L313-1 ~mode4~0 := 1; 820#L278-2 assume { :end_inline_node4 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 840#L1039 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 703#L1040 assume ~st1~0 + ~nl1~0 <= 1; 704#L1041 assume ~st2~0 + ~nl2~0 <= 1; 652#L1042 assume ~st3~0 + ~nl3~0 <= 1; 653#L1043 assume ~st4~0 + ~nl4~0 <= 1; 816#L1044 assume ~r1~0 % 256 >= 3; 748#L1048 assume ~r1~0 % 256 < 3; 731#L1053 assume ~r1~0 % 256 >= 3; 697#L1058 assume ~r1~0 % 256 < 3;check_~tmp~1#1 := 1; 649#L1039-1 check_#res#1 := check_~tmp~1#1; 749#L1091 main_#t~ret57#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret57#1;havoc main_#t~ret57#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 695#L1210 assume !(0 == assert_~arg#1 % 256); 692#L1205 assume { :end_inline_assert } true; 616#L1168-2 [2021-12-15 17:22:32,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:32,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1972521662, now seen corresponding path program 2 times [2021-12-15 17:22:32,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:32,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337906146] [2021-12-15 17:22:32,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:32,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:22:32,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:22:32,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:22:32,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337906146] [2021-12-15 17:22:32,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337906146] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:22:32,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:22:32,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:22:32,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991311803] [2021-12-15 17:22:32,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:22:32,242 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:22:32,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:32,244 INFO L85 PathProgramCache]: Analyzing trace with hash -2018455972, now seen corresponding path program 1 times [2021-12-15 17:22:32,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:32,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274474684] [2021-12-15 17:22:32,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:32,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:22:32,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:22:32,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:22:32,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274474684] [2021-12-15 17:22:32,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274474684] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:22:32,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:22:32,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:22:32,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389928535] [2021-12-15 17:22:32,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:22:32,302 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:22:32,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:22:32,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:22:32,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:22:32,303 INFO L87 Difference]: Start difference. First operand 294 states and 516 transitions. cyclomatic complexity: 223 Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 17:22:32,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:22:32,362 INFO L93 Difference]: Finished difference Result 387 states and 662 transitions. [2021-12-15 17:22:32,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:22:32,364 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 387 states and 662 transitions. [2021-12-15 17:22:32,368 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 207 [2021-12-15 17:22:32,371 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 387 states to 387 states and 662 transitions. [2021-12-15 17:22:32,371 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 387 [2021-12-15 17:22:32,372 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 387 [2021-12-15 17:22:32,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 387 states and 662 transitions. [2021-12-15 17:22:32,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:22:32,373 INFO L681 BuchiCegarLoop]: Abstraction has 387 states and 662 transitions. [2021-12-15 17:22:32,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states and 662 transitions. [2021-12-15 17:22:32,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 385. [2021-12-15 17:22:32,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 385 states have (on average 1.7116883116883117) internal successors, (659), 384 states have internal predecessors, (659), 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 17:22:32,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 659 transitions. [2021-12-15 17:22:32,413 INFO L704 BuchiCegarLoop]: Abstraction has 385 states and 659 transitions. [2021-12-15 17:22:32,414 INFO L587 BuchiCegarLoop]: Abstraction has 385 states and 659 transitions. [2021-12-15 17:22:32,414 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-15 17:22:32,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 385 states and 659 transitions. [2021-12-15 17:22:32,416 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 205 [2021-12-15 17:22:32,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:22:32,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:22:32,417 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:22:32,417 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:22:32,417 INFO L791 eck$LassoCheckResult]: Stem: 1605#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(39, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 1562#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~nondet44#1, main_#t~nondet45#1, main_#t~nondet46#1, main_#t~nondet47#1, main_#t~nondet48#1, main_#t~nondet49#1, main_#t~nondet50#1, main_#t~nondet51#1, main_#t~nondet52#1, main_#t~nondet53#1, main_#t~nondet54#1, main_#t~nondet55#1, main_#t~ret56#1, main_#t~ret57#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~ep12~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~ep13~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~ep14~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~ep21~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~ep23~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~ep24~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~ep31~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~ep32~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~ep34~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~ep41~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~ep42~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~ep43~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~id1~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~r1~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~st1~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~nl1~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~m1~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~max1~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~mode1~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~id2~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~r2~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~st2~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~nl2~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~m2~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~max2~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~mode2~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~id3~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~r3~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;~st3~0 := main_#t~nondet44#1;havoc main_#t~nondet44#1;~nl3~0 := main_#t~nondet45#1;havoc main_#t~nondet45#1;~m3~0 := main_#t~nondet46#1;havoc main_#t~nondet46#1;~max3~0 := main_#t~nondet47#1;havoc main_#t~nondet47#1;~mode3~0 := main_#t~nondet48#1;havoc main_#t~nondet48#1;~id4~0 := main_#t~nondet49#1;havoc main_#t~nondet49#1;~r4~0 := main_#t~nondet50#1;havoc main_#t~nondet50#1;~st4~0 := main_#t~nondet51#1;havoc main_#t~nondet51#1;~nl4~0 := main_#t~nondet52#1;havoc main_#t~nondet52#1;~m4~0 := main_#t~nondet53#1;havoc main_#t~nondet53#1;~max4~0 := main_#t~nondet54#1;havoc main_#t~nondet54#1;~mode4~0 := main_#t~nondet55#1;havoc main_#t~nondet55#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r141~0#1, init_~r211~0#1, init_~r231~0#1, init_~r241~0#1, init_~r311~0#1, init_~r321~0#1, init_~r341~0#1, init_~r411~0#1, init_~r421~0#1, init_~r431~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r142~0#1, init_~tmp___1~0#1, init_~r212~0#1, init_~tmp___2~0#1, init_~r232~0#1, init_~tmp___3~0#1, init_~r242~0#1, init_~tmp___4~0#1, init_~r312~0#1, init_~tmp___5~0#1, init_~r322~0#1, init_~tmp___6~0#1, init_~r342~0#1, init_~tmp___7~0#1, init_~r412~0#1, init_~tmp___8~0#1, init_~r422~0#1, init_~tmp___9~0#1, init_~r432~0#1, init_~tmp___10~0#1, init_~r123~0#1, init_~tmp___11~0#1, init_~r133~0#1, init_~tmp___12~0#1, init_~r143~0#1, init_~tmp___13~0#1, init_~r213~0#1, init_~tmp___14~0#1, init_~r233~0#1, init_~tmp___15~0#1, init_~r243~0#1, init_~tmp___16~0#1, init_~r313~0#1, init_~tmp___17~0#1, init_~r323~0#1, init_~tmp___18~0#1, init_~r343~0#1, init_~tmp___19~0#1, init_~r413~0#1, init_~tmp___20~0#1, init_~r423~0#1, init_~tmp___21~0#1, init_~r433~0#1, init_~tmp___22~0#1, init_~tmp___23~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r141~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r241~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r341~0#1;havoc init_~r411~0#1;havoc init_~r421~0#1;havoc init_~r431~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r142~0#1;havoc init_~tmp___1~0#1;havoc init_~r212~0#1;havoc init_~tmp___2~0#1;havoc init_~r232~0#1;havoc init_~tmp___3~0#1;havoc init_~r242~0#1;havoc init_~tmp___4~0#1;havoc init_~r312~0#1;havoc init_~tmp___5~0#1;havoc init_~r322~0#1;havoc init_~tmp___6~0#1;havoc init_~r342~0#1;havoc init_~tmp___7~0#1;havoc init_~r412~0#1;havoc init_~tmp___8~0#1;havoc init_~r422~0#1;havoc init_~tmp___9~0#1;havoc init_~r432~0#1;havoc init_~tmp___10~0#1;havoc init_~r123~0#1;havoc init_~tmp___11~0#1;havoc init_~r133~0#1;havoc init_~tmp___12~0#1;havoc init_~r143~0#1;havoc init_~tmp___13~0#1;havoc init_~r213~0#1;havoc init_~tmp___14~0#1;havoc init_~r233~0#1;havoc init_~tmp___15~0#1;havoc init_~r243~0#1;havoc init_~tmp___16~0#1;havoc init_~r313~0#1;havoc init_~tmp___17~0#1;havoc init_~r323~0#1;havoc init_~tmp___18~0#1;havoc init_~r343~0#1;havoc init_~tmp___19~0#1;havoc init_~r413~0#1;havoc init_~tmp___20~0#1;havoc init_~r423~0#1;havoc init_~tmp___21~0#1;havoc init_~r433~0#1;havoc init_~tmp___22~0#1;havoc init_~tmp___23~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r141~0#1 := ~ep14~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r241~0#1 := ~ep24~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0;init_~r341~0#1 := ~ep34~0;init_~r411~0#1 := ~ep41~0;init_~r421~0#1 := ~ep42~0;init_~r431~0#1 := ~ep43~0; 1561#L406 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 1348#L417 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 1396#L427 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 1538#L438 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 1527#L448 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 1316#L459 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 1317#L469 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 1334#L480 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 1409#L490 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 1398#L501 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 1568#L511 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 1400#L522 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 1420#L532 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 1407#L543 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 1408#L553 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 1340#L564 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 1341#L574 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 1410#L585 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 1590#L595 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 1382#L606 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 1550#L616 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 1414#L627 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 1415#L637 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 1498#L648 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 1555#L658 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 1376#L669 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 1508#L679 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 1390#L690 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 1434#L700 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 1435#L711 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 1467#L721 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 1324#L732 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 1391#L742 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 1392#L753 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 1530#L763 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 1553#L774 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 1597#L784 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 1475#L795 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 1465#L805 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 1428#L816 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 1412#L826 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 1336#L837 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 1509#L847 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 1512#L858 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 1365#L868 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 1366#L879 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 1325#L889 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 1326#L900 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 1345#L910 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 1310#L910-1 init_#res#1 := init_~tmp___23~0#1; 1342#L1031 main_#t~ret56#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret56#1;havoc main_#t~ret56#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 1403#L22 assume !(0 == assume_abort_if_not_~cond#1); 1404#L21 assume { :end_inline_assume_abort_if_not } true;~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 1490#L1168-2 [2021-12-15 17:22:32,417 INFO L793 eck$LassoCheckResult]: Loop: 1490#L1168-2 assume !false;assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_#t~ite5#1, node1_#t~ite6#1; 1685#L110 assume !(0 != ~mode1~0 % 256); 1684#L145 assume ~r1~0 % 256 < 3; 1479#L146 assume !(0 != ~ep12~0 % 256); 1473#L146-2 assume !(0 != ~ep13~0 % 256); 1477#L149-1 assume !(0 != ~ep14~0 % 256); 1520#L145-1 ~mode1~0 := 1; 1671#L110-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite7#1, node2_#t~ite8#1, node2_#t~ite9#1; 1668#L166 assume !(0 != ~mode2~0 % 256); 1654#L201 assume !(~r2~0 % 256 < 3); 1648#L201-1 ~mode2~0 := 1; 1645#L166-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite10#1, node3_#t~ite11#1, node3_#t~ite12#1; 1641#L222 assume !(0 != ~mode3~0 % 256); 1639#L257 assume !(~r3~0 % 256 < 3); 1630#L257-1 ~mode3~0 := 1; 1627#L222-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite13#1, node4_#t~ite14#1, node4_#t~ite15#1; 1625#L278 assume !(0 != ~mode4~0 % 256); 1621#L313 assume !(~r4~0 % 256 < 3); 1614#L313-1 ~mode4~0 := 1; 1613#L278-2 assume { :end_inline_node4 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 1612#L1039 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 1611#L1040 assume ~st1~0 + ~nl1~0 <= 1; 1610#L1041 assume ~st2~0 + ~nl2~0 <= 1; 1609#L1042 assume ~st3~0 + ~nl3~0 <= 1; 1608#L1043 assume ~st4~0 + ~nl4~0 <= 1; 1607#L1044 assume !(~r1~0 % 256 >= 3); 1438#L1047 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0; 1439#L1048 assume ~r1~0 % 256 < 3; 1690#L1053 assume !(~r1~0 % 256 >= 3); 1387#L1057 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0 + ~nl4~0; 1388#L1058 assume ~r1~0 % 256 < 3;check_~tmp~1#1 := 1; 1689#L1039-1 check_#res#1 := check_~tmp~1#1; 1688#L1091 main_#t~ret57#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret57#1;havoc main_#t~ret57#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 1687#L1210 assume !(0 == assert_~arg#1 % 256); 1686#L1205 assume { :end_inline_assert } true; 1490#L1168-2 [2021-12-15 17:22:32,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:32,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1972521662, now seen corresponding path program 3 times [2021-12-15 17:22:32,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:32,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525074547] [2021-12-15 17:22:32,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:32,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:22:32,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:22:32,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:22:32,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525074547] [2021-12-15 17:22:32,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525074547] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:22:32,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:22:32,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:22:32,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379542525] [2021-12-15 17:22:32,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:22:32,529 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:22:32,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:32,529 INFO L85 PathProgramCache]: Analyzing trace with hash -187796439, now seen corresponding path program 1 times [2021-12-15 17:22:32,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:32,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111139654] [2021-12-15 17:22:32,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:32,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:32,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:22:32,556 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:22:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:22:32,590 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:22:34,094 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:548) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLoopTermination(LassoCheck.java:944) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:818) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 17:22:34,097 INFO L158 Benchmark]: Toolchain (without parser) took 4591.56ms. Allocated memory was 121.6MB in the beginning and 199.2MB in the end (delta: 77.6MB). Free memory was 90.1MB in the beginning and 140.4MB in the end (delta: -50.3MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2021-12-15 17:22:34,098 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:22:34,098 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.65ms. Allocated memory is still 121.6MB. Free memory was 90.1MB in the beginning and 83.2MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 17:22:34,099 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.66ms. Allocated memory is still 121.6MB. Free memory was 83.2MB in the beginning and 78.5MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:22:34,099 INFO L158 Benchmark]: Boogie Preprocessor took 73.49ms. Allocated memory is still 121.6MB. Free memory was 78.5MB in the beginning and 74.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:22:34,100 INFO L158 Benchmark]: RCFGBuilder took 1047.51ms. Allocated memory was 121.6MB in the beginning and 148.9MB in the end (delta: 27.3MB). Free memory was 74.8MB in the beginning and 90.9MB in the end (delta: -16.0MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2021-12-15 17:22:34,100 INFO L158 Benchmark]: BuchiAutomizer took 3000.39ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 90.9MB in the beginning and 140.4MB in the end (delta: -49.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2021-12-15 17:22:34,103 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.65ms. Allocated memory is still 121.6MB. Free memory was 90.1MB in the beginning and 83.2MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.66ms. Allocated memory is still 121.6MB. Free memory was 83.2MB in the beginning and 78.5MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.49ms. Allocated memory is still 121.6MB. Free memory was 78.5MB in the beginning and 74.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1047.51ms. Allocated memory was 121.6MB in the beginning and 148.9MB in the end (delta: 27.3MB). Free memory was 74.8MB in the beginning and 90.9MB in the end (delta: -16.0MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3000.39ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 90.9MB in the beginning and 140.4MB in the end (delta: -49.5MB). Peak memory consumption was 39.8MB. 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 17:22:34,151 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