./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.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_overflow.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 a476129b1600ab93482417c4ebe15d373b743970a04c4bdd8ca1478cbccf2de7 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:22:32,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:22:32,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:22:32,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:22:32,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:22:32,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:22:32,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:22:32,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:22:32,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:22:32,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:22:32,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:22:32,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:22:32,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:22:32,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:22:32,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:22:32,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:22:32,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:22:32,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:22:32,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:22:32,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:22:32,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:22:32,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:22:32,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:22:32,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:22:32,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:22:32,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:22:32,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:22:32,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:22:32,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:22:32,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:22:32,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:22:32,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:22:32,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:22:32,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:22:32,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:22:32,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:22:32,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:22:32,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:22:32,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:22:32,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:22:32,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:22:32,844 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:22:32,858 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:22:32,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:22:32,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:22:32,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:22:32,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:22:32,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:22:32,860 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:22:32,860 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:22:32,860 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:22:32,860 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:22:32,861 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:22:32,861 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:22:32,861 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:22:32,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:22:32,861 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:22:32,861 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:22:32,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:22:32,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:22:32,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:22:32,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:22:32,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:22:32,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:22:32,862 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:22:32,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:22:32,863 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:22:32,863 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:22:32,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:22:32,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:22:32,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:22:32,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:22:32,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:22:32,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:22:32,864 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:22:32,864 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a476129b1600ab93482417c4ebe15d373b743970a04c4bdd8ca1478cbccf2de7 [2021-12-15 17:22:33,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:22:33,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:22:33,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:22:33,099 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:22:33,100 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:22:33,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2021-12-15 17:22:33,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf6541f22/7ac29d760a0840d0a84132e315a5edf0/FLAG793ca882e [2021-12-15 17:22:33,586 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:22:33,589 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2021-12-15 17:22:33,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf6541f22/7ac29d760a0840d0a84132e315a5edf0/FLAG793ca882e [2021-12-15 17:22:33,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf6541f22/7ac29d760a0840d0a84132e315a5edf0 [2021-12-15 17:22:33,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:22:33,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:22:33,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:22:33,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:22:33,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:22:33,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:22:33" (1/1) ... [2021-12-15 17:22:33,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6769fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:33, skipping insertion in model container [2021-12-15 17:22:33,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:22:33" (1/1) ... [2021-12-15 17:22:33,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:22:33,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:22:33,913 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_overflow.ufo.UNBOUNDED.pals.c[28307,28320] [2021-12-15 17:22:33,913 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:22:33,920 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:22:33,994 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_overflow.ufo.UNBOUNDED.pals.c[28307,28320] [2021-12-15 17:22:33,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:22:34,009 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:22:34,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:34 WrapperNode [2021-12-15 17:22:34,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:22:34,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:22:34,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:22:34,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:22:34,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:34" (1/1) ... [2021-12-15 17:22:34,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:34" (1/1) ... [2021-12-15 17:22:34,065 INFO L137 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 922 [2021-12-15 17:22:34,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:22:34,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:22:34,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:22:34,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:22:34,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:34" (1/1) ... [2021-12-15 17:22:34,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:34" (1/1) ... [2021-12-15 17:22:34,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:34" (1/1) ... [2021-12-15 17:22:34,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:34" (1/1) ... [2021-12-15 17:22:34,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:34" (1/1) ... [2021-12-15 17:22:34,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:34" (1/1) ... [2021-12-15 17:22:34,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:34" (1/1) ... [2021-12-15 17:22:34,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:22:34,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:22:34,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:22:34,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:22:34,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:34" (1/1) ... [2021-12-15 17:22:34,147 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:22:34,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:22:34,187 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 17:22:34,193 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 17:22:34,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:22:34,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:22:34,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:22:34,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:22:34,305 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:22:34,306 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:22:34,899 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:22:34,914 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:22:34,914 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 17:22:34,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:22:34 BoogieIcfgContainer [2021-12-15 17:22:34,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:22:34,919 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:22:34,919 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:22:34,921 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:22:34,922 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:22:34,922 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:22:33" (1/3) ... [2021-12-15 17:22:34,923 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@125898f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:22:34, skipping insertion in model container [2021-12-15 17:22:34,923 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:22:34,924 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:34" (2/3) ... [2021-12-15 17:22:34,924 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@125898f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:22:34, skipping insertion in model container [2021-12-15 17:22:34,924 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:22:34,924 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:22:34" (3/3) ... [2021-12-15 17:22:34,925 INFO L388 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2021-12-15 17:22:34,970 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:22:34,970 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:22:34,970 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:22:34,970 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:22:34,970 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:22:34,970 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:22:34,970 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:22:34,970 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:22:35,000 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 303 states, 302 states have (on average 1.804635761589404) internal successors, (545), 302 states have internal predecessors, (545), 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 17:22:35,034 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 107 [2021-12-15 17:22:35,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:22:35,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:22:35,043 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 17:22:35,043 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 17:22:35,043 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:22:35,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 303 states, 302 states have (on average 1.804635761589404) internal successors, (545), 302 states have internal predecessors, (545), 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 17:22:35,053 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 107 [2021-12-15 17:22:35,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:22:35,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:22:35,055 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 17:22:35,056 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 17:22:35,067 INFO L791 eck$LassoCheckResult]: Stem: 291#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(46, 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; 199#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; 170#L394true assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 85#L405true init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 124#L415true assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 280#L426true init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 194#L436true assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 187#L447true init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 173#L457true assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 136#L468true init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 155#L478true assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 284#L489true init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 49#L499true assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 237#L510true init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 200#L520true assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 43#L531true init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 83#L541true assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 204#L552true init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 236#L562true assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 59#L573true init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 101#L583true assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 261#L594true init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 207#L604true assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 165#L615true init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 144#L625true assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 252#L636true init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 247#L646true assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 157#L657true init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 195#L667true assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 112#L678true init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 109#L688true assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 205#L699true init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 129#L709true assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 33#L720true init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 60#L730true assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 141#L741true init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 23#L751true assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 250#L762true init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 5#L772true assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 79#L783true init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 201#L793true assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 9#L804true init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 94#L814true assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 146#L825true init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 142#L835true assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 174#L846true init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 154#L856true assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 276#L867true init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 18#L877true assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 19#L888true init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 95#L898true assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 137#L898-1true init_#res#1 := init_~tmp___23~0#1; 292#L1067true 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; 47#L22true assume !(0 == assume_abort_if_not_~cond#1); 107#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; 128#L1204-2true [2021-12-15 17:22:35,070 INFO L793 eck$LassoCheckResult]: Loop: 128#L1204-2true assume !false;assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_#t~ite5#1, node1_#t~ite6#1; 72#L110true assume !(0 != ~mode1~0 % 256); 110#L142true assume !(~r1~0 % 256 < 3); 77#L142-1true ~mode1~0 := 1; 46#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; 213#L163true assume !(0 != ~mode2~0 % 256); 119#L195true assume !(~r2~0 % 256 < 3); 57#L195-1true ~mode2~0 := 1; 54#L163-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite10#1, node3_#t~ite11#1, node3_#t~ite12#1; 271#L216true assume !(0 != ~mode3~0 % 256); 156#L248true assume !(~r3~0 % 256 < 3); 233#L248-1true ~mode3~0 := 1; 29#L216-2true assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite13#1, node4_#t~ite14#1, node4_#t~ite15#1; 68#L269true assume !(0 != ~mode4~0 % 256); 97#L301true assume !(~r4~0 % 256 < 3); 108#L301-1true ~mode4~0 := 1; 149#L269-2true 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; 126#L1075true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1#1 := 0; 302#L1075-1true check_#res#1 := check_~tmp~1#1; 122#L1127true 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; 44#L1246true assume !(0 == assert_~arg#1 % 256); 39#L1241true assume { :end_inline_assert } true; 128#L1204-2true [2021-12-15 17:22:35,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:35,081 INFO L85 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 1 times [2021-12-15 17:22:35,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:35,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633704400] [2021-12-15 17:22:35,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:35,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:22:35,400 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 17:22:35,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:22:35,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633704400] [2021-12-15 17:22:35,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633704400] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:22:35,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:22:35,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:22:35,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086504109] [2021-12-15 17:22:35,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:22:35,407 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:22:35,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:35,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1319514639, now seen corresponding path program 1 times [2021-12-15 17:22:35,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:35,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498921812] [2021-12-15 17:22:35,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:35,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:22:35,495 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 17:22:35,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:22:35,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498921812] [2021-12-15 17:22:35,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498921812] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:22:35,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:22:35,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:22:35,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190605051] [2021-12-15 17:22:35,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:22:35,497 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:22:35,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:22:35,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 17:22:35,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 17:22:35,523 INFO L87 Difference]: Start difference. First operand has 303 states, 302 states have (on average 1.804635761589404) internal successors, (545), 302 states have internal predecessors, (545), 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 17:22:35,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:22:35,598 INFO L93 Difference]: Finished difference Result 303 states and 541 transitions. [2021-12-15 17:22:35,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 17:22:35,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 303 states and 541 transitions. [2021-12-15 17:22:35,608 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2021-12-15 17:22:35,613 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 303 states to 298 states and 528 transitions. [2021-12-15 17:22:35,614 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 298 [2021-12-15 17:22:35,615 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 298 [2021-12-15 17:22:35,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 298 states and 528 transitions. [2021-12-15 17:22:35,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:22:35,617 INFO L681 BuchiCegarLoop]: Abstraction has 298 states and 528 transitions. [2021-12-15 17:22:35,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states and 528 transitions. [2021-12-15 17:22:35,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2021-12-15 17:22:35,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 298 states have (on average 1.7718120805369129) internal successors, (528), 297 states have internal predecessors, (528), 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 17:22:35,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 528 transitions. [2021-12-15 17:22:35,646 INFO L704 BuchiCegarLoop]: Abstraction has 298 states and 528 transitions. [2021-12-15 17:22:35,646 INFO L587 BuchiCegarLoop]: Abstraction has 298 states and 528 transitions. [2021-12-15 17:22:35,646 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:22:35,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 298 states and 528 transitions. [2021-12-15 17:22:35,648 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2021-12-15 17:22:35,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:22:35,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:22:35,650 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 17:22:35,650 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 17:22:35,651 INFO L791 eck$LassoCheckResult]: Stem: 921#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(46, 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; 880#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; 865#L394 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 780#L405 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 781#L415 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 628#L426 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 875#L436 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 850#L447 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 867#L457 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 625#L468 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 837#L478 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 758#L489 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 727#L499 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 728#L510 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 884#L520 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 717#L531 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 718#L541 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 668#L552 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 886#L562 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 734#L573 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 739#L583 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 771#L594 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 888#L604 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 763#L615 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 845#L625 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 682#L636 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 912#L646 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 800#L657 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 855#L667 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 640#L678 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 806#L688 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 749#L699 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 829#L709 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 695#L720 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 696#L730 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 713#L741 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 674#L751 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 675#L762 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 630#L772 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 631#L783 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 774#L793 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 642#L804 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 643#L814 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 737#L825 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 844#L835 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 700#L846 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 852#L856 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 694#L867 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 660#L877 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 645#L888 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 662#L898 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 638#L898-1 init_#res#1 := init_~tmp___23~0#1; 838#L1067 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; 724#L22 assume !(0 == assume_abort_if_not_~cond#1); 725#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; 708#L1204-2 [2021-12-15 17:22:35,651 INFO L793 eck$LassoCheckResult]: Loop: 708#L1204-2 assume !false;assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_#t~ite5#1, node1_#t~ite6#1; 760#L110 assume !(0 != ~mode1~0 % 256); 762#L142 assume !(~r1~0 % 256 < 3); 768#L142-1 ~mode1~0 := 1; 722#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; 723#L163 assume !(0 != ~mode2~0 % 256); 816#L195 assume !(~r2~0 % 256 < 3); 738#L195-1 ~mode2~0 := 1; 731#L163-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite10#1, node3_#t~ite11#1, node3_#t~ite12#1; 732#L216 assume !(0 != ~mode3~0 % 256); 853#L248 assume !(~r3~0 % 256 < 3); 649#L248-1 ~mode3~0 := 1; 687#L216-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite13#1, node4_#t~ite14#1, node4_#t~ite15#1; 688#L269 assume !(0 != ~mode4~0 % 256); 752#L301 assume !(~r4~0 % 256 < 3); 678#L301-1 ~mode4~0 := 1; 794#L269-2 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; 823#L1075 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 824#L1076 assume ~st1~0 + ~nl1~0 <= 1; 851#L1077 assume ~st2~0 + ~nl2~0 <= 1; 735#L1078 assume ~st3~0 + ~nl3~0 <= 1; 646#L1079 assume ~st4~0 + ~nl4~0 <= 1; 647#L1080 assume ~r1~0 % 256 >= 3; 663#L1084 assume ~r1~0 % 256 < 3; 664#L1089 assume ~r1~0 % 256 >= 3; 898#L1094 assume ~r1~0 % 256 < 3;check_~tmp~1#1 := 1; 773#L1075-1 check_#res#1 := check_~tmp~1#1; 819#L1127 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; 719#L1246 assume !(0 == assert_~arg#1 % 256); 707#L1241 assume { :end_inline_assert } true; 708#L1204-2 [2021-12-15 17:22:35,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:35,652 INFO L85 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 2 times [2021-12-15 17:22:35,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:35,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292393333] [2021-12-15 17:22:35,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:35,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:22:35,764 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 17:22:35,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:22:35,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292393333] [2021-12-15 17:22:35,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292393333] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:22:35,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:22:35,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:22:35,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859988316] [2021-12-15 17:22:35,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:22:35,765 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:22:35,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:35,765 INFO L85 PathProgramCache]: Analyzing trace with hash 94444480, now seen corresponding path program 1 times [2021-12-15 17:22:35,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:35,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331581012] [2021-12-15 17:22:35,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:35,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:22:35,800 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 17:22:35,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:22:35,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331581012] [2021-12-15 17:22:35,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331581012] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:22:35,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:22:35,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:22:35,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856899769] [2021-12-15 17:22:35,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:22:35,803 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:22:35,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:22:35,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:22:35,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:22:35,803 INFO L87 Difference]: Start difference. First operand 298 states and 528 transitions. cyclomatic complexity: 231 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 17:22:35,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:22:35,855 INFO L93 Difference]: Finished difference Result 383 states and 662 transitions. [2021-12-15 17:22:35,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:22:35,855 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 383 states and 662 transitions. [2021-12-15 17:22:35,859 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 191 [2021-12-15 17:22:35,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 383 states to 383 states and 662 transitions. [2021-12-15 17:22:35,861 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 383 [2021-12-15 17:22:35,866 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 383 [2021-12-15 17:22:35,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 383 states and 662 transitions. [2021-12-15 17:22:35,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:22:35,868 INFO L681 BuchiCegarLoop]: Abstraction has 383 states and 662 transitions. [2021-12-15 17:22:35,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states and 662 transitions. [2021-12-15 17:22:35,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2021-12-15 17:22:35,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 383 states have (on average 1.7284595300261096) internal successors, (662), 382 states have internal predecessors, (662), 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 17:22:35,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 662 transitions. [2021-12-15 17:22:35,877 INFO L704 BuchiCegarLoop]: Abstraction has 383 states and 662 transitions. [2021-12-15 17:22:35,877 INFO L587 BuchiCegarLoop]: Abstraction has 383 states and 662 transitions. [2021-12-15 17:22:35,877 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-15 17:22:35,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 383 states and 662 transitions. [2021-12-15 17:22:35,884 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 191 [2021-12-15 17:22:35,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:22:35,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:22:35,890 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 17:22:35,890 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 17:22:35,890 INFO L791 eck$LassoCheckResult]: Stem: 1633#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(46, 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; 1585#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; 1563#L394 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 1472#L405 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 1473#L415 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 1318#L426 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 1578#L436 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 1546#L447 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 1565#L457 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 1315#L468 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 1535#L478 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 1450#L489 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 1418#L499 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 1419#L510 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 1589#L520 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 1407#L531 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 1408#L541 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 1357#L552 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 1591#L562 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 1425#L573 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 1430#L583 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 1463#L594 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 1593#L604 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 1455#L615 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 1541#L625 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 1373#L636 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 1620#L646 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 1498#L657 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 1553#L667 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 1330#L678 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 1501#L688 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 1440#L699 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 1524#L709 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 1387#L720 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 1388#L730 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 1400#L741 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 1360#L751 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 1361#L762 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 1320#L772 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 1321#L783 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 1464#L793 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 1332#L804 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 1333#L814 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 1427#L825 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 1539#L835 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 1390#L846 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 1549#L856 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 1384#L867 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 1350#L877 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 1335#L888 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 1352#L898 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 1328#L898-1 init_#res#1 := init_~tmp___23~0#1; 1532#L1067 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; 1414#L22 assume !(0 == assume_abort_if_not_~cond#1); 1415#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; 1500#L1204-2 [2021-12-15 17:22:35,890 INFO L793 eck$LassoCheckResult]: Loop: 1500#L1204-2 assume !false;assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_#t~ite5#1, node1_#t~ite6#1; 1637#L110 assume !(0 != ~mode1~0 % 256); 1636#L142 assume ~r1~0 % 256 < 3; 1624#L143 assume !(0 != ~ep12~0 % 256); 1338#L143-2 assume !(0 != ~ep13~0 % 256); 1339#L146-1 assume !(0 != ~ep14~0 % 256); 1482#L142-1 ~mode1~0 := 1; 1687#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; 1683#L163 assume !(0 != ~mode2~0 % 256); 1682#L195 assume !(~r2~0 % 256 < 3); 1429#L195-1 ~mode2~0 := 1; 1422#L163-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite10#1, node3_#t~ite11#1, node3_#t~ite12#1; 1423#L216 assume !(0 != ~mode3~0 % 256); 1628#L248 assume !(~r3~0 % 256 < 3); 1661#L248-1 ~mode3~0 := 1; 1377#L216-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite13#1, node4_#t~ite14#1, node4_#t~ite15#1; 1378#L269 assume !(0 != ~mode4~0 % 256); 1485#L301 assume !(~r4~0 % 256 < 3); 1369#L301-1 ~mode4~0 := 1; 1488#L269-2 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; 1518#L1075 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 1519#L1076 assume ~st1~0 + ~nl1~0 <= 1; 1646#L1077 assume ~st2~0 + ~nl2~0 <= 1; 1645#L1078 assume ~st3~0 + ~nl3~0 <= 1; 1644#L1079 assume ~st4~0 + ~nl4~0 <= 1; 1643#L1080 assume !(~r1~0 % 256 >= 3); 1569#L1083 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0; 1570#L1084 assume ~r1~0 % 256 < 3; 1642#L1089 assume !(~r1~0 % 256 >= 3); 1611#L1093 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0 + ~nl4~0; 1612#L1094 assume ~r1~0 % 256 < 3;check_~tmp~1#1 := 1; 1641#L1075-1 check_#res#1 := check_~tmp~1#1; 1640#L1127 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; 1639#L1246 assume !(0 == assert_~arg#1 % 256); 1638#L1241 assume { :end_inline_assert } true; 1500#L1204-2 [2021-12-15 17:22:35,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:35,891 INFO L85 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 3 times [2021-12-15 17:22:35,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:35,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575785563] [2021-12-15 17:22:35,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:35,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:22:35,976 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 17:22:35,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:22:35,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575785563] [2021-12-15 17:22:35,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575785563] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:22:35,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:22:35,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:22:35,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448789209] [2021-12-15 17:22:35,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:22:35,978 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:22:35,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:35,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1683797340, now seen corresponding path program 1 times [2021-12-15 17:22:35,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:35,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849744680] [2021-12-15 17:22:35,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:35,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:22:36,013 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:22:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:22:36,046 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:22:36,854 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 17:22:36,857 INFO L158 Benchmark]: Toolchain (without parser) took 3230.69ms. Allocated memory was 83.9MB in the beginning and 157.3MB in the end (delta: 73.4MB). Free memory was 64.2MB in the beginning and 111.3MB in the end (delta: -47.1MB). Peak memory consumption was 59.6MB. Max. memory is 16.1GB. [2021-12-15 17:22:36,858 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 65.1MB in the beginning and 65.0MB in the end (delta: 75.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:22:36,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.55ms. Allocated memory is still 83.9MB. Free memory was 63.9MB in the beginning and 50.2MB in the end (delta: 13.7MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2021-12-15 17:22:36,858 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.65ms. Allocated memory is still 83.9MB. Free memory was 50.2MB in the beginning and 45.6MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 17:22:36,859 INFO L158 Benchmark]: Boogie Preprocessor took 57.52ms. Allocated memory is still 83.9MB. Free memory was 45.6MB in the beginning and 41.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:22:36,860 INFO L158 Benchmark]: RCFGBuilder took 793.45ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 41.4MB in the beginning and 45.2MB in the end (delta: -3.9MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2021-12-15 17:22:36,860 INFO L158 Benchmark]: BuchiAutomizer took 1937.78ms. Allocated memory was 104.9MB in the beginning and 157.3MB in the end (delta: 52.4MB). Free memory was 45.2MB in the beginning and 111.3MB in the end (delta: -66.1MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2021-12-15 17:22:36,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 65.1MB in the beginning and 65.0MB in the end (delta: 75.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.55ms. Allocated memory is still 83.9MB. Free memory was 63.9MB in the beginning and 50.2MB in the end (delta: 13.7MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.65ms. Allocated memory is still 83.9MB. Free memory was 50.2MB in the beginning and 45.6MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.52ms. Allocated memory is still 83.9MB. Free memory was 45.6MB in the beginning and 41.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 793.45ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 41.4MB in the beginning and 45.2MB in the end (delta: -3.9MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1937.78ms. Allocated memory was 104.9MB in the beginning and 157.3MB in the end (delta: 52.4MB). Free memory was 45.2MB in the beginning and 111.3MB in the end (delta: -66.1MB). Peak memory consumption was 20.8MB. 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 17:22:36,919 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