./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.2.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.4.2.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 2e33738ed6ea5e50e5f6c45ef52d667e94a1539d08a631ee5964d7b99a8f5c91 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:22:29,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:22:29,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:22:29,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:22:29,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:22:29,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:22:29,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:22:29,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:22:29,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:22:29,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:22:29,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:22:29,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:22:29,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:22:29,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:22:29,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:22:29,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:22:29,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:22:29,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:22:29,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:22:29,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:22:29,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:22:29,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:22:29,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:22:29,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:22:29,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:22:29,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:22:29,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:22:29,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:22:29,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:22:29,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:22:29,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:22:29,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:22:29,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:22:29,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:22:29,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:22:29,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:22:29,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:22:29,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:22:29,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:22:29,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:22:29,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:22:29,843 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:22:29,867 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:22:29,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:22:29,868 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:22:29,868 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:22:29,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:22:29,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:22:29,870 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:22:29,870 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:22:29,871 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:22:29,871 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:22:29,871 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:22:29,871 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:22:29,872 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:22:29,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:22:29,872 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:22:29,872 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:22:29,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:22:29,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:22:29,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:22:29,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:22:29,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:22:29,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:22:29,873 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:22:29,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:22:29,873 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:22:29,873 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:22:29,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:22:29,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:22:29,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:22:29,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:22:29,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:22:29,874 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:22:29,875 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:22:29,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e33738ed6ea5e50e5f6c45ef52d667e94a1539d08a631ee5964d7b99a8f5c91 [2021-12-15 17:22:30,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:22:30,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:22:30,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:22:30,081 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:22:30,081 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:22:30,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2021-12-15 17:22:30,132 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e2c5d1b7/2ead98510cf84cad802547deb118db87/FLAG37bba5224 [2021-12-15 17:22:30,547 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:22:30,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2021-12-15 17:22:30,557 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e2c5d1b7/2ead98510cf84cad802547deb118db87/FLAG37bba5224 [2021-12-15 17:22:30,921 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e2c5d1b7/2ead98510cf84cad802547deb118db87 [2021-12-15 17:22:30,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:22:30,925 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:22:30,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:22:30,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:22:30,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:22:30,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:22:30" (1/1) ... [2021-12-15 17:22:30,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1537f6a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:30, skipping insertion in model container [2021-12-15 17:22:30,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:22:30" (1/1) ... [2021-12-15 17:22:30,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:22:30,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:22:31,165 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.4.2.ufo.UNBOUNDED.pals.c[28368,28381] [2021-12-15 17:22:31,165 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:22:31,172 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:22:31,224 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.4.2.ufo.UNBOUNDED.pals.c[28368,28381] [2021-12-15 17:22:31,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:22:31,234 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:22:31,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:31 WrapperNode [2021-12-15 17:22:31,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:22:31,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:22:31,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:22:31,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:22:31,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:31" (1/1) ... [2021-12-15 17:22:31,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:31" (1/1) ... [2021-12-15 17:22:31,291 INFO L137 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 930 [2021-12-15 17:22:31,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:22:31,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:22:31,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:22:31,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:22:31,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:31" (1/1) ... [2021-12-15 17:22:31,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:31" (1/1) ... [2021-12-15 17:22:31,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:31" (1/1) ... [2021-12-15 17:22:31,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:31" (1/1) ... [2021-12-15 17:22:31,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:31" (1/1) ... [2021-12-15 17:22:31,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:31" (1/1) ... [2021-12-15 17:22:31,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:31" (1/1) ... [2021-12-15 17:22:31,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:22:31,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:22:31,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:22:31,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:22:31,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:31" (1/1) ... [2021-12-15 17:22:31,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:22:31,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:22:31,379 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 17:22:31,408 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 17:22:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:22:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:22:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:22:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:22:31,594 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:22:31,597 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:22:32,182 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:22:32,193 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:22:32,194 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 17:22:32,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:22:32 BoogieIcfgContainer [2021-12-15 17:22:32,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:22:32,212 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:22:32,212 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:22:32,214 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:22:32,214 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:22:32,214 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:22:30" (1/3) ... [2021-12-15 17:22:32,215 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d51fbbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:22:32, skipping insertion in model container [2021-12-15 17:22:32,215 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:22:32,215 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:22:31" (2/3) ... [2021-12-15 17:22:32,216 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d51fbbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:22:32, skipping insertion in model container [2021-12-15 17:22:32,216 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:22:32,216 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:22:32" (3/3) ... [2021-12-15 17:22:32,217 INFO L388 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2021-12-15 17:22:32,252 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:22:32,252 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:22:32,252 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:22:32,252 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:22:32,252 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:22:32,252 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:22:32,252 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:22:32,253 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:22:32,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 311 states, 310 states have (on average 1.7967741935483872) internal successors, (557), 310 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:22:32,316 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 115 [2021-12-15 17:22:32,317 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:22:32,317 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:22:32,332 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:22:32,332 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 17:22:32,332 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:22:32,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 311 states, 310 states have (on average 1.7967741935483872) internal successors, (557), 310 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:22:32,340 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 115 [2021-12-15 17:22:32,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:22:32,340 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:22:32,345 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:22:32,346 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 17:22:32,356 INFO L791 eck$LassoCheckResult]: Stem: 299#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(39, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 179#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; 178#L406true assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 43#L417true init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 258#L427true assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 260#L438true init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 135#L448true assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 8#L459true init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 16#L469true assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 51#L480true init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 161#L490true assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 189#L501true init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 224#L511true assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 271#L522true init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 59#L532true assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 50#L543true init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 238#L553true assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 18#L564true init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 52#L574true assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 236#L585true init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 313#L595true assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 160#L606true init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 276#L616true assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 54#L627true init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 114#L637true assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 312#L648true init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 169#L658true assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 120#L669true init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 272#L679true assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 198#L690true init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 65#L700true assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 182#L711true init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 90#L721true assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 171#L732true init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 42#L742true assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 140#L753true init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 225#L763true assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 253#L774true init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 296#L784true assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 151#L795true init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 89#L805true assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 226#L816true init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 53#L826true assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 123#L837true init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 281#L847true assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 235#L858true init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 30#L868true assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 98#L879true init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 12#L889true assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 254#L900true init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 21#L910true assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 19#L910-1true init_#res#1 := init_~tmp___23~0#1; 13#L1079true 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; 48#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; 3#L1216-2true [2021-12-15 17:22:32,362 INFO L793 eck$LassoCheckResult]: Loop: 3#L1216-2true assume !false;assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_#t~ite5#1, node1_#t~ite6#1; 73#L110true assume !(0 != ~mode1~0 % 256); 63#L145true assume !(~r1~0 % 256 < 3); 71#L145-1true ~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; 100#L166true assume !(0 != ~mode2~0 % 256); 211#L201true assume !(~r2~0 % 256 < 3); 262#L201-1true ~mode2~0 := 1; 256#L166-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite10#1, node3_#t~ite11#1, node3_#t~ite12#1; 91#L222true assume !(0 != ~mode3~0 % 256); 134#L257true assume !(~r3~0 % 256 < 3); 58#L257-1true ~mode3~0 := 1; 15#L222-2true assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite13#1, node4_#t~ite14#1, node4_#t~ite15#1; 145#L278true assume !(0 != ~mode4~0 % 256); 27#L313true assume !(~r4~0 % 256 < 3); 127#L313-1true ~mode4~0 := 1; 148#L278-2true assume { :end_inline_node4 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 143#L1087true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1#1 := 0; 138#L1087-1true check_#res#1 := check_~tmp~1#1; 183#L1139true 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; 166#L1258true assume !(0 == assert_~arg#1 % 256); 64#L1253true assume { :end_inline_assert } true; 3#L1216-2true [2021-12-15 17:22:32,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:32,368 INFO L85 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 1 times [2021-12-15 17:22:32,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:32,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869094310] [2021-12-15 17:22:32,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:32,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:22:32,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:22:32,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:22:32,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869094310] [2021-12-15 17:22:32,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869094310] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:22:32,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:22:32,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:22:32,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195387576] [2021-12-15 17:22:32,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:22:32,619 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:22:32,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:32,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1673942413, now seen corresponding path program 1 times [2021-12-15 17:22:32,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:32,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819565754] [2021-12-15 17:22:32,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:32,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:22:32,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:22:32,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:22:32,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819565754] [2021-12-15 17:22:32,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819565754] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:22:32,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:22:32,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:22:32,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173902359] [2021-12-15 17:22:32,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:22:32,693 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:22:32,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:22:32,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 17:22:32,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 17:22:32,714 INFO L87 Difference]: Start difference. First operand has 311 states, 310 states have (on average 1.7967741935483872) internal successors, (557), 310 states have internal predecessors, (557), 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 17:22:32,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:22:32,806 INFO L93 Difference]: Finished difference Result 311 states and 553 transitions. [2021-12-15 17:22:32,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 17:22:32,810 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 311 states and 553 transitions. [2021-12-15 17:22:32,812 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 114 [2021-12-15 17:22:32,818 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 311 states to 306 states and 540 transitions. [2021-12-15 17:22:32,819 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 306 [2021-12-15 17:22:32,819 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 306 [2021-12-15 17:22:32,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 306 states and 540 transitions. [2021-12-15 17:22:32,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:22:32,837 INFO L681 BuchiCegarLoop]: Abstraction has 306 states and 540 transitions. [2021-12-15 17:22:32,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states and 540 transitions. [2021-12-15 17:22:32,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2021-12-15 17:22:32,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 306 states have (on average 1.7647058823529411) internal successors, (540), 305 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:22:32,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 540 transitions. [2021-12-15 17:22:32,879 INFO L704 BuchiCegarLoop]: Abstraction has 306 states and 540 transitions. [2021-12-15 17:22:32,894 INFO L587 BuchiCegarLoop]: Abstraction has 306 states and 540 transitions. [2021-12-15 17:22:32,895 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:22:32,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 306 states and 540 transitions. [2021-12-15 17:22:32,897 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 114 [2021-12-15 17:22:32,897 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:22:32,897 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:22:32,898 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:22:32,898 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:22:32,899 INFO L791 eck$LassoCheckResult]: Stem: 944#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(39, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 899#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; 898#L406 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 679#L417 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 724#L427 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 872#L438 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 855#L448 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 652#L459 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 653#L469 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 672#L480 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 738#L490 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 726#L501 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 904#L511 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 728#L522 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 749#L532 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 736#L543 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 737#L553 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 676#L564 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 677#L574 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 739#L585 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 928#L595 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 716#L606 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 885#L616 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 743#L627 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 744#L637 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 826#L648 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 892#L658 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 710#L669 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 834#L679 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 720#L690 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 761#L700 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 762#L711 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 797#L721 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 658#L732 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 721#L742 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 722#L753 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 862#L763 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 888#L774 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 935#L784 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 804#L795 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 795#L805 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 757#L816 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 741#L826 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 674#L837 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 839#L847 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 841#L858 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 700#L868 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 701#L879 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 661#L889 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 662#L900 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 680#L910 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 644#L910-1 init_#res#1 := init_~tmp___23~0#1; 664#L1079 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; 665#L22 assume !(0 == assume_abort_if_not_~cond#1); 733#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; 640#L1216-2 [2021-12-15 17:22:32,899 INFO L793 eck$LassoCheckResult]: Loop: 640#L1216-2 assume !false;assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_#t~ite5#1, node1_#t~ite6#1; 641#L110 assume !(0 != ~mode1~0 % 256); 758#L145 assume !(~r1~0 % 256 < 3); 760#L145-1 ~mode1~0 := 1; 683#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; 730#L166 assume !(0 != ~mode2~0 % 256); 810#L201 assume !(~r2~0 % 256 < 3); 909#L201-1 ~mode2~0 := 1; 934#L166-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite10#1, node3_#t~ite11#1, node3_#t~ite12#1; 798#L222 assume !(0 != ~mode3~0 % 256); 799#L257 assume !(~r3~0 % 256 < 3); 748#L257-1 ~mode3~0 := 1; 669#L222-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite13#1, node4_#t~ite14#1, node4_#t~ite15#1; 670#L278 assume !(0 != ~mode4~0 % 256); 691#L313 assume !(~r4~0 % 256 < 3); 692#L313-1 ~mode4~0 := 1; 843#L278-2 assume { :end_inline_node4 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 865#L1087 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 866#L1088 assume ~st1~0 + ~nl1~0 <= 1; 940#L1089 assume ~st2~0 + ~nl2~0 <= 1; 698#L1090 assume ~st3~0 + ~nl3~0 <= 1; 699#L1091 assume ~st4~0 + ~nl4~0 <= 1; 767#L1092 assume ~r1~0 % 256 >= 3; 860#L1096 assume ~r1~0 % 256 < 3; 785#L1101 assume ~r1~0 % 256 >= 3; 780#L1106 assume ~r1~0 % 256 < 3;check_~tmp~1#1 := 1; 858#L1087-1 check_#res#1 := check_~tmp~1#1; 859#L1139 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; 889#L1258 assume !(0 == assert_~arg#1 % 256); 754#L1253 assume { :end_inline_assert } true; 640#L1216-2 [2021-12-15 17:22:32,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:32,900 INFO L85 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 2 times [2021-12-15 17:22:32,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:32,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453696992] [2021-12-15 17:22:32,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:32,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:22:32,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:22:32,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:22:32,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453696992] [2021-12-15 17:22:32,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453696992] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:22:32,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:22:32,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:22:32,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111959566] [2021-12-15 17:22:32,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:22:32,957 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:22:32,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:32,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1400444252, now seen corresponding path program 1 times [2021-12-15 17:22:32,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:32,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543620139] [2021-12-15 17:22:32,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:32,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:22:32,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:22:32,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:22:32,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543620139] [2021-12-15 17:22:32,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543620139] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:22:32,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:22:32,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:22:32,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762933877] [2021-12-15 17:22:32,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:22:32,983 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:22:32,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:22:32,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:22:32,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:22:32,984 INFO L87 Difference]: Start difference. First operand 306 states and 540 transitions. cyclomatic complexity: 235 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 17:22:33,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:22:33,023 INFO L93 Difference]: Finished difference Result 398 states and 685 transitions. [2021-12-15 17:22:33,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:22:33,024 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 398 states and 685 transitions. [2021-12-15 17:22:33,026 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 206 [2021-12-15 17:22:33,028 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 398 states to 398 states and 685 transitions. [2021-12-15 17:22:33,028 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 398 [2021-12-15 17:22:33,029 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 398 [2021-12-15 17:22:33,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 398 states and 685 transitions. [2021-12-15 17:22:33,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:22:33,030 INFO L681 BuchiCegarLoop]: Abstraction has 398 states and 685 transitions. [2021-12-15 17:22:33,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states and 685 transitions. [2021-12-15 17:22:33,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 396. [2021-12-15 17:22:33,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 396 states have (on average 1.7222222222222223) internal successors, (682), 395 states have internal predecessors, (682), 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 17:22:33,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 682 transitions. [2021-12-15 17:22:33,039 INFO L704 BuchiCegarLoop]: Abstraction has 396 states and 682 transitions. [2021-12-15 17:22:33,039 INFO L587 BuchiCegarLoop]: Abstraction has 396 states and 682 transitions. [2021-12-15 17:22:33,040 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-15 17:22:33,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 396 states and 682 transitions. [2021-12-15 17:22:33,041 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 204 [2021-12-15 17:22:33,041 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:22:33,042 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:22:33,043 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 17:22:33,043 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:22:33,043 INFO L791 eck$LassoCheckResult]: Stem: 1663#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(39, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 1615#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; 1614#L406 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 1394#L417 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 1437#L427 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 1589#L438 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 1572#L448 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 1365#L459 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 1366#L469 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 1385#L480 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 1452#L490 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 1439#L501 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 1620#L511 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 1441#L522 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 1463#L532 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 1450#L543 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 1451#L553 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 1389#L564 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 1390#L574 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 1453#L585 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 1647#L595 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 1429#L606 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 1602#L616 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 1457#L627 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 1458#L637 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 1542#L648 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 1608#L658 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 1421#L669 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 1550#L679 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 1433#L690 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 1475#L700 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 1476#L711 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 1512#L721 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 1369#L732 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 1434#L742 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 1435#L753 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 1579#L763 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 1605#L774 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 1653#L784 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 1519#L795 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 1510#L805 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 1469#L816 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 1455#L826 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 1387#L837 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 1555#L847 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 1557#L858 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 1411#L868 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 1412#L879 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 1374#L889 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 1375#L900 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 1391#L910 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 1357#L910-1 init_#res#1 := init_~tmp___23~0#1; 1377#L1079 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; 1378#L22 assume !(0 == assume_abort_if_not_~cond#1); 1447#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; 1473#L1216-2 [2021-12-15 17:22:33,044 INFO L793 eck$LassoCheckResult]: Loop: 1473#L1216-2 assume !false;assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_#t~ite5#1, node1_#t~ite6#1; 1745#L110 assume !(0 != ~mode1~0 % 256); 1744#L145 assume ~r1~0 % 256 < 3; 1522#L146 assume !(0 != ~ep12~0 % 256); 1517#L146-2 assume !(0 != ~ep13~0 % 256); 1521#L149-1 assume !(0 != ~ep14~0 % 256); 1565#L145-1 ~mode1~0 := 1; 1396#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; 1733#L166 assume !(0 != ~mode2~0 % 256); 1734#L201 assume !(~r2~0 % 256 < 3); 1716#L201-1 ~mode2~0 := 1; 1715#L166-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite10#1, node3_#t~ite11#1, node3_#t~ite12#1; 1709#L222 assume !(0 != ~mode3~0 % 256); 1710#L257 assume !(~r3~0 % 256 < 3); 1695#L257-1 ~mode3~0 := 1; 1691#L222-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite13#1, node4_#t~ite14#1, node4_#t~ite15#1; 1690#L278 assume !(0 != ~mode4~0 % 256); 1679#L313 assume !(~r4~0 % 256 < 3); 1673#L313-1 ~mode4~0 := 1; 1672#L278-2 assume { :end_inline_node4 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 1671#L1087 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 1670#L1088 assume ~st1~0 + ~nl1~0 <= 1; 1669#L1089 assume ~st2~0 + ~nl2~0 <= 1; 1668#L1090 assume ~st3~0 + ~nl3~0 <= 1; 1667#L1091 assume ~st4~0 + ~nl4~0 <= 1; 1666#L1092 assume !(~r1~0 % 256 >= 3); 1627#L1095 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0; 1628#L1096 assume ~r1~0 % 256 < 3; 1665#L1101 assume !(~r1~0 % 256 >= 3); 1493#L1105 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0 + ~nl4~0; 1494#L1106 assume ~r1~0 % 256 < 3;check_~tmp~1#1 := 1; 1575#L1087-1 check_#res#1 := check_~tmp~1#1; 1576#L1139 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; 1606#L1258 assume !(0 == assert_~arg#1 % 256); 1472#L1253 assume { :end_inline_assert } true; 1473#L1216-2 [2021-12-15 17:22:33,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:33,044 INFO L85 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 3 times [2021-12-15 17:22:33,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:33,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011810080] [2021-12-15 17:22:33,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:33,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:22:33,092 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 17:22:33,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:22:33,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011810080] [2021-12-15 17:22:33,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011810080] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:22:33,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:22:33,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:22:33,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725714542] [2021-12-15 17:22:33,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:22:33,093 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:22:33,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:22:33,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1915943793, now seen corresponding path program 1 times [2021-12-15 17:22:33,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:22:33,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101496989] [2021-12-15 17:22:33,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:22:33,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:22:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:22:33,102 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:22:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:22:33,138 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:22:33,913 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 17:22:33,916 INFO L158 Benchmark]: Toolchain (without parser) took 2990.18ms. Allocated memory was 102.8MB in the beginning and 140.5MB in the end (delta: 37.7MB). Free memory was 76.2MB in the beginning and 104.8MB in the end (delta: -28.6MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. [2021-12-15 17:22:33,917 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 73.4MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:22:33,917 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.64ms. Allocated memory is still 102.8MB. Free memory was 76.0MB in the beginning and 53.2MB in the end (delta: 22.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-15 17:22:33,917 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.47ms. Allocated memory is still 102.8MB. Free memory was 53.2MB in the beginning and 48.6MB in the end (delta: 4.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 17:22:33,917 INFO L158 Benchmark]: Boogie Preprocessor took 32.66ms. Allocated memory is still 102.8MB. Free memory was 48.6MB in the beginning and 44.8MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:22:33,918 INFO L158 Benchmark]: RCFGBuilder took 885.32ms. Allocated memory is still 102.8MB. Free memory was 44.7MB in the beginning and 75.7MB in the end (delta: -31.0MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2021-12-15 17:22:33,918 INFO L158 Benchmark]: BuchiAutomizer took 1703.09ms. Allocated memory was 102.8MB in the beginning and 140.5MB in the end (delta: 37.7MB). Free memory was 75.7MB in the beginning and 104.8MB in the end (delta: -29.1MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2021-12-15 17:22:33,920 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 73.4MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.64ms. Allocated memory is still 102.8MB. Free memory was 76.0MB in the beginning and 53.2MB in the end (delta: 22.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.47ms. Allocated memory is still 102.8MB. Free memory was 53.2MB in the beginning and 48.6MB in the end (delta: 4.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.66ms. Allocated memory is still 102.8MB. Free memory was 48.6MB in the beginning and 44.8MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 885.32ms. Allocated memory is still 102.8MB. Free memory was 44.7MB in the beginning and 75.7MB in the end (delta: -31.0MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 1703.09ms. Allocated memory was 102.8MB in the beginning and 140.5MB in the end (delta: 37.7MB). Free memory was 75.7MB in the beginning and 104.8MB in the end (delta: -29.1MB). Peak memory consumption was 70.0MB. 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 17:22:33,945 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