./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.3.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_opt-floodmax.4.3.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 e434f2d86227d38c1c2a04ff8bca16de95195c35648228e2b922536dedadd129 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:23:21,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:23:21,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:23:21,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:23:21,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:23:21,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:23:21,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:23:21,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:23:21,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:23:21,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:23:21,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:23:21,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:23:21,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:23:21,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:23:21,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:23:21,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:23:21,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:23:21,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:23:21,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:23:21,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:23:21,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:23:21,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:23:21,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:23:21,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:23:21,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:23:21,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:23:21,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:23:22,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:23:22,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:23:22,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:23:22,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:23:22,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:23:22,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:23:22,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:23:22,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:23:22,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:23:22,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:23:22,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:23:22,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:23:22,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:23:22,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:23:22,016 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:23:22,083 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:23:22,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:23:22,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:23:22,086 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:23:22,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:23:22,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:23:22,087 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:23:22,088 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:23:22,088 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:23:22,088 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:23:22,088 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:23:22,089 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:23:22,089 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:23:22,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:23:22,103 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:23:22,103 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:23:22,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:23:22,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:23:22,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:23:22,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:23:22,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:23:22,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:23:22,105 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:23:22,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:23:22,106 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:23:22,106 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:23:22,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:23:22,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:23:22,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:23:22,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:23:22,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:23:22,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:23:22,108 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:23:22,108 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e434f2d86227d38c1c2a04ff8bca16de95195c35648228e2b922536dedadd129 [2021-12-15 17:23:22,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:23:22,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:23:22,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:23:22,494 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:23:22,494 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:23:22,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2021-12-15 17:23:22,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf6258e92/dbacdfe15cb74f3fb961e67ccd1b955d/FLAG99b8a9e96 [2021-12-15 17:23:23,272 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:23:23,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2021-12-15 17:23:23,312 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf6258e92/dbacdfe15cb74f3fb961e67ccd1b955d/FLAG99b8a9e96 [2021-12-15 17:23:23,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf6258e92/dbacdfe15cb74f3fb961e67ccd1b955d [2021-12-15 17:23:23,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:23:23,534 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:23:23,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:23:23,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:23:23,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:23:23,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:23:23" (1/1) ... [2021-12-15 17:23:23,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63a75a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:23, skipping insertion in model container [2021-12-15 17:23:23,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:23:23" (1/1) ... [2021-12-15 17:23:23,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:23:23,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:23:24,059 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_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c[31172,31185] [2021-12-15 17:23:24,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:23:24,069 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:23:24,186 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_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c[31172,31185] [2021-12-15 17:23:24,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:23:24,217 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:23:24,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:24 WrapperNode [2021-12-15 17:23:24,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:23:24,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:23:24,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:23:24,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:23:24,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:24" (1/1) ... [2021-12-15 17:23:24,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:24" (1/1) ... [2021-12-15 17:23:24,357 INFO L137 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 986 [2021-12-15 17:23:24,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:23:24,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:23:24,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:23:24,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:23:24,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:24" (1/1) ... [2021-12-15 17:23:24,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:24" (1/1) ... [2021-12-15 17:23:24,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:24" (1/1) ... [2021-12-15 17:23:24,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:24" (1/1) ... [2021-12-15 17:23:24,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:24" (1/1) ... [2021-12-15 17:23:24,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:24" (1/1) ... [2021-12-15 17:23:24,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:24" (1/1) ... [2021-12-15 17:23:24,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:23:24,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:23:24,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:23:24,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:23:24,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:24" (1/1) ... [2021-12-15 17:23:24,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:23:24,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:23:24,548 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 17:23:24,553 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 17:23:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:23:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:23:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:23:24,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:23:24,747 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:23:24,748 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:23:25,435 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:23:25,442 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:23:25,442 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 17:23:25,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:23:25 BoogieIcfgContainer [2021-12-15 17:23:25,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:23:25,445 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:23:25,445 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:23:25,447 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:23:25,448 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:23:25,448 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:23:23" (1/3) ... [2021-12-15 17:23:25,449 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fe7c389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:23:25, skipping insertion in model container [2021-12-15 17:23:25,449 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:23:25,449 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:24" (2/3) ... [2021-12-15 17:23:25,449 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fe7c389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:23:25, skipping insertion in model container [2021-12-15 17:23:25,449 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:23:25,449 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:23:25" (3/3) ... [2021-12-15 17:23:25,450 INFO L388 chiAutomizerObserver]: Analyzing ICFG pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2021-12-15 17:23:25,482 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:23:25,482 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:23:25,483 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:23:25,483 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:23:25,483 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:23:25,483 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:23:25,483 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:23:25,483 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:23:25,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 331 states, 330 states have (on average 1.7969696969696969) internal successors, (593), 330 states have internal predecessors, (593), 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 17:23:25,532 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 131 [2021-12-15 17:23:25,532 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:23:25,532 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:23:25,539 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 17:23:25,539 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 17:23:25,539 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:23:25,540 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 331 states, 330 states have (on average 1.7969696969696969) internal successors, (593), 330 states have internal predecessors, (593), 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 17:23:25,547 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 131 [2021-12-15 17:23:25,547 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:23:25,547 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:23:25,550 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 17:23:25,550 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 17:23:25,555 INFO L791 eck$LassoCheckResult]: Stem: 327#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(43, 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;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0;~newmax4~0 := 0; 223#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~nondet56#1, main_#t~nondet57#1, main_#t~nondet58#1, main_#t~nondet59#1, main_#t~ret60#1, main_#t~ret61#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;~newmax1~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~id2~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~r2~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~st2~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~nl2~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~m2~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~max2~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~mode2~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~newmax2~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;~id3~0 := main_#t~nondet44#1;havoc main_#t~nondet44#1;~r3~0 := main_#t~nondet45#1;havoc main_#t~nondet45#1;~st3~0 := main_#t~nondet46#1;havoc main_#t~nondet46#1;~nl3~0 := main_#t~nondet47#1;havoc main_#t~nondet47#1;~m3~0 := main_#t~nondet48#1;havoc main_#t~nondet48#1;~max3~0 := main_#t~nondet49#1;havoc main_#t~nondet49#1;~mode3~0 := main_#t~nondet50#1;havoc main_#t~nondet50#1;~newmax3~0 := main_#t~nondet51#1;havoc main_#t~nondet51#1;~id4~0 := main_#t~nondet52#1;havoc main_#t~nondet52#1;~r4~0 := main_#t~nondet53#1;havoc main_#t~nondet53#1;~st4~0 := main_#t~nondet54#1;havoc main_#t~nondet54#1;~nl4~0 := main_#t~nondet55#1;havoc main_#t~nondet55#1;~m4~0 := main_#t~nondet56#1;havoc main_#t~nondet56#1;~max4~0 := main_#t~nondet57#1;havoc main_#t~nondet57#1;~mode4~0 := main_#t~nondet58#1;havoc main_#t~nondet58#1;~newmax4~0 := main_#t~nondet59#1;havoc main_#t~nondet59#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; 8#L454true assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 173#L465true init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 106#L475true assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 138#L486true init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 279#L496true assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 203#L507true init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 281#L517true assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 227#L528true init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 148#L538true assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 75#L549true init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 229#L559true assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 62#L570true init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 3#L580true assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 150#L591true init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 244#L601true assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 7#L612true init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 293#L622true assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 168#L633true init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 55#L643true assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 147#L654true init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 59#L664true assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 97#L675true init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 116#L685true assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 232#L696true init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 311#L706true assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 29#L717true init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 195#L727true assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 87#L738true init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 57#L748true assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 220#L759true init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 70#L769true assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 182#L780true init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 102#L790true assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 315#L801true init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 109#L811true assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 268#L822true init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 6#L832true assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 107#L843true init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 63#L853true assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 151#L864true init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 272#L874true assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 83#L885true init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 113#L895true assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 304#L906true init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 325#L916true assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 192#L927true init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 280#L937true assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 10#L948true init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 154#L958true assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 326#L958-1true init_#res#1 := init_~tmp___23~0#1; 115#L1143true main_#t~ret60#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret60#1;havoc main_#t~ret60#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; 64#L22true assume !(0 == assume_abort_if_not_~cond#1); 137#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; 260#L1284-2true [2021-12-15 17:23:25,556 INFO L793 eck$LassoCheckResult]: Loop: 260#L1284-2true assume !false;assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_#t~ite5#1, node1_#t~ite6#1, node1_~newmax~0#1;havoc node1_~newmax~0#1;node1_~newmax~0#1 := 0; 90#L115true assume !(0 != ~mode1~0 % 256); 126#L154true assume !(~r1~0 % 256 < 3); 321#L154-1true ~mode1~0 := 1; 248#L115-2true assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite7#1, node2_#t~ite8#1, node2_#t~ite9#1, node2_~newmax~1#1;havoc node2_~newmax~1#1;node2_~newmax~1#1 := 0; 303#L182true assume !(0 != ~mode2~0 % 256); 283#L221true assume !(~r2~0 % 256 < 3); 89#L221-1true ~mode2~0 := 1; 31#L182-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite10#1, node3_#t~ite11#1, node3_#t~ite12#1, node3_~newmax~2#1;havoc node3_~newmax~2#1;node3_~newmax~2#1 := 0; 13#L249true assume !(0 != ~mode3~0 % 256); 42#L288true assume !(~r3~0 % 256 < 3); 257#L288-1true ~mode3~0 := 1; 36#L249-2true assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite13#1, node4_#t~ite14#1, node4_#t~ite15#1, node4_~newmax~3#1;havoc node4_~newmax~3#1;node4_~newmax~3#1 := 0; 320#L316true assume !(0 != ~mode4~0 % 256); 219#L355true assume !(~r4~0 % 256 < 3); 333#L355-1true ~mode4~0 := 1; 266#L316-2true 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; 54#L1151true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1#1 := 0; 310#L1151-1true check_#res#1 := check_~tmp~1#1; 201#L1203true main_#t~ret61#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret61#1;havoc main_#t~ret61#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; 328#L1326true assume !(0 == assert_~arg#1 % 256); 191#L1321true assume { :end_inline_assert } true; 260#L1284-2true [2021-12-15 17:23:25,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:25,560 INFO L85 PathProgramCache]: Analyzing trace with hash 2064134942, now seen corresponding path program 1 times [2021-12-15 17:23:25,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:25,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596279599] [2021-12-15 17:23:25,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:25,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:25,734 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 17:23:25,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:25,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596279599] [2021-12-15 17:23:25,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596279599] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:25,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:25,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:23:25,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822730490] [2021-12-15 17:23:25,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:25,739 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:23:25,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:25,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1642008047, now seen corresponding path program 1 times [2021-12-15 17:23:25,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:25,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196267488] [2021-12-15 17:23:25,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:25,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:25,803 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 17:23:25,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:25,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196267488] [2021-12-15 17:23:25,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196267488] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:25,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:25,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:23:25,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170036462] [2021-12-15 17:23:25,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:25,805 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:23:25,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:23:25,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 17:23:25,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 17:23:25,825 INFO L87 Difference]: Start difference. First operand has 331 states, 330 states have (on average 1.7969696969696969) internal successors, (593), 330 states have internal predecessors, (593), 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 17:23:25,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:23:25,884 INFO L93 Difference]: Finished difference Result 331 states and 589 transitions. [2021-12-15 17:23:25,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 17:23:25,888 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 331 states and 589 transitions. [2021-12-15 17:23:25,892 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 130 [2021-12-15 17:23:25,896 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 331 states to 326 states and 576 transitions. [2021-12-15 17:23:25,897 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 326 [2021-12-15 17:23:25,898 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 326 [2021-12-15 17:23:25,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 326 states and 576 transitions. [2021-12-15 17:23:25,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:23:25,900 INFO L681 BuchiCegarLoop]: Abstraction has 326 states and 576 transitions. [2021-12-15 17:23:25,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states and 576 transitions. [2021-12-15 17:23:25,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2021-12-15 17:23:25,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 326 states have (on average 1.7668711656441718) internal successors, (576), 325 states have internal predecessors, (576), 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 17:23:25,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 576 transitions. [2021-12-15 17:23:25,927 INFO L704 BuchiCegarLoop]: Abstraction has 326 states and 576 transitions. [2021-12-15 17:23:25,927 INFO L587 BuchiCegarLoop]: Abstraction has 326 states and 576 transitions. [2021-12-15 17:23:25,927 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:23:25,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 326 states and 576 transitions. [2021-12-15 17:23:25,929 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 130 [2021-12-15 17:23:25,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:23:25,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:23:25,931 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 17:23:25,931 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 17:23:25,931 INFO L791 eck$LassoCheckResult]: Stem: 1005#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(43, 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;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0;~newmax4~0 := 0; 980#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~nondet56#1, main_#t~nondet57#1, main_#t~nondet58#1, main_#t~nondet59#1, main_#t~ret60#1, main_#t~ret61#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;~newmax1~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~id2~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~r2~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~st2~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~nl2~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~m2~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~max2~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~mode2~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~newmax2~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;~id3~0 := main_#t~nondet44#1;havoc main_#t~nondet44#1;~r3~0 := main_#t~nondet45#1;havoc main_#t~nondet45#1;~st3~0 := main_#t~nondet46#1;havoc main_#t~nondet46#1;~nl3~0 := main_#t~nondet47#1;havoc main_#t~nondet47#1;~m3~0 := main_#t~nondet48#1;havoc main_#t~nondet48#1;~max3~0 := main_#t~nondet49#1;havoc main_#t~nondet49#1;~mode3~0 := main_#t~nondet50#1;havoc main_#t~nondet50#1;~newmax3~0 := main_#t~nondet51#1;havoc main_#t~nondet51#1;~id4~0 := main_#t~nondet52#1;havoc main_#t~nondet52#1;~r4~0 := main_#t~nondet53#1;havoc main_#t~nondet53#1;~st4~0 := main_#t~nondet54#1;havoc main_#t~nondet54#1;~nl4~0 := main_#t~nondet55#1;havoc main_#t~nondet55#1;~m4~0 := main_#t~nondet56#1;havoc main_#t~nondet56#1;~max4~0 := main_#t~nondet57#1;havoc main_#t~nondet57#1;~mode4~0 := main_#t~nondet58#1;havoc main_#t~nondet58#1;~newmax4~0 := main_#t~nondet59#1;havoc main_#t~nondet59#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; 693#L454 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 694#L465 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 868#L475 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 869#L486 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 908#L496 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 781#L507 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 967#L517 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 894#L528 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 919#L538 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 826#L549 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 827#L559 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 801#L570 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 680#L580 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 681#L591 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 921#L601 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 691#L612 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 692#L622 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 944#L633 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 789#L643 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 790#L654 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 796#L664 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 738#L675 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 859#L685 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 885#L696 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 988#L706 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 742#L717 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 743#L727 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 684#L738 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 794#L748 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 795#L759 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 817#L769 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 818#L780 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 862#L790 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 863#L801 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 873#L811 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 874#L822 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 688#L832 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 689#L843 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 802#L853 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 804#L864 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 922#L874 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 836#L885 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 837#L895 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 878#L906 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 1001#L916 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 933#L927 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 961#L937 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 699#L948 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 700#L958 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 703#L958-1 init_#res#1 := init_~tmp___23~0#1; 883#L1143 main_#t~ret60#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret60#1;havoc main_#t~ret60#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; 805#L22 assume !(0 == assume_abort_if_not_~cond#1); 806#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; 907#L1284-2 [2021-12-15 17:23:25,931 INFO L793 eck$LassoCheckResult]: Loop: 907#L1284-2 assume !false;assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_#t~ite5#1, node1_#t~ite6#1, node1_~newmax~0#1;havoc node1_~newmax~0#1;node1_~newmax~0#1 := 0; 845#L115 assume !(0 != ~mode1~0 % 256); 846#L154 assume !(~r1~0 % 256 < 3); 767#L154-1 ~mode1~0 := 1; 860#L115-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite7#1, node2_#t~ite8#1, node2_#t~ite9#1, node2_~newmax~1#1;havoc node2_~newmax~1#1;node2_~newmax~1#1 := 0; 993#L182 assume !(0 != ~mode2~0 % 256); 1000#L221 assume !(~r2~0 % 256 < 3); 843#L221-1 ~mode2~0 := 1; 746#L182-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite10#1, node3_#t~ite11#1, node3_#t~ite12#1, node3_~newmax~2#1;havoc node3_~newmax~2#1;node3_~newmax~2#1 := 0; 706#L249 assume !(0 != ~mode3~0 % 256); 707#L288 assume !(~r3~0 % 256 < 3); 759#L288-1 ~mode3~0 := 1; 756#L249-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite13#1, node4_#t~ite14#1, node4_#t~ite15#1, node4_~newmax~3#1;havoc node4_~newmax~3#1;node4_~newmax~3#1 := 0; 757#L316 assume !(0 != ~mode4~0 % 256); 978#L355 assume !(~r4~0 % 256 < 3); 727#L355-1 ~mode4~0 := 1; 755#L316-2 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; 787#L1151 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 788#L1152 assume ~st1~0 + ~nl1~0 <= 1; 850#L1153 assume ~st2~0 + ~nl2~0 <= 1; 851#L1154 assume ~st3~0 + ~nl3~0 <= 1; 749#L1155 assume ~st4~0 + ~nl4~0 <= 1; 750#L1156 assume ~r1~0 % 256 >= 3; 763#L1160 assume ~r1~0 % 256 < 3; 764#L1165 assume ~r1~0 % 256 >= 3; 774#L1170 assume ~r1~0 % 256 < 3;check_~tmp~1#1 := 1; 748#L1151-1 check_#res#1 := check_~tmp~1#1; 965#L1203 main_#t~ret61#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret61#1;havoc main_#t~ret61#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; 966#L1326 assume !(0 == assert_~arg#1 % 256); 960#L1321 assume { :end_inline_assert } true; 907#L1284-2 [2021-12-15 17:23:25,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:25,932 INFO L85 PathProgramCache]: Analyzing trace with hash 2064134942, now seen corresponding path program 2 times [2021-12-15 17:23:25,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:25,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274109240] [2021-12-15 17:23:25,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:25,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:25,996 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 17:23:25,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:25,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274109240] [2021-12-15 17:23:25,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274109240] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:25,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:25,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:23:25,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084320987] [2021-12-15 17:23:25,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:25,998 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:23:25,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:25,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1459986464, now seen corresponding path program 1 times [2021-12-15 17:23:25,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:25,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193390157] [2021-12-15 17:23:25,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:25,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:26,021 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 17:23:26,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:26,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193390157] [2021-12-15 17:23:26,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193390157] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:26,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:26,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:23:26,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112536948] [2021-12-15 17:23:26,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:26,023 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:23:26,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:23:26,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:23:26,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:23:26,024 INFO L87 Difference]: Start difference. First operand 326 states and 576 transitions. cyclomatic complexity: 251 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 17:23:26,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:23:26,060 INFO L93 Difference]: Finished difference Result 431 states and 743 transitions. [2021-12-15 17:23:26,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:23:26,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 431 states and 743 transitions. [2021-12-15 17:23:26,064 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 235 [2021-12-15 17:23:26,066 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 431 states to 431 states and 743 transitions. [2021-12-15 17:23:26,066 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 431 [2021-12-15 17:23:26,067 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 431 [2021-12-15 17:23:26,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 431 states and 743 transitions. [2021-12-15 17:23:26,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:23:26,069 INFO L681 BuchiCegarLoop]: Abstraction has 431 states and 743 transitions. [2021-12-15 17:23:26,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states and 743 transitions. [2021-12-15 17:23:26,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 429. [2021-12-15 17:23:26,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 429 states have (on average 1.724941724941725) internal successors, (740), 428 states have internal predecessors, (740), 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 17:23:26,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 740 transitions. [2021-12-15 17:23:26,078 INFO L704 BuchiCegarLoop]: Abstraction has 429 states and 740 transitions. [2021-12-15 17:23:26,078 INFO L587 BuchiCegarLoop]: Abstraction has 429 states and 740 transitions. [2021-12-15 17:23:26,078 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-15 17:23:26,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 429 states and 740 transitions. [2021-12-15 17:23:26,080 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 233 [2021-12-15 17:23:26,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:23:26,080 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:23:26,082 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 17:23:26,082 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 17:23:26,082 INFO L791 eck$LassoCheckResult]: Stem: 1779#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(43, 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;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0;~newmax4~0 := 0; 1750#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~nondet56#1, main_#t~nondet57#1, main_#t~nondet58#1, main_#t~nondet59#1, main_#t~ret60#1, main_#t~ret61#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;~newmax1~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~id2~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~r2~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~st2~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~nl2~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~m2~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~max2~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~mode2~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~newmax2~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;~id3~0 := main_#t~nondet44#1;havoc main_#t~nondet44#1;~r3~0 := main_#t~nondet45#1;havoc main_#t~nondet45#1;~st3~0 := main_#t~nondet46#1;havoc main_#t~nondet46#1;~nl3~0 := main_#t~nondet47#1;havoc main_#t~nondet47#1;~m3~0 := main_#t~nondet48#1;havoc main_#t~nondet48#1;~max3~0 := main_#t~nondet49#1;havoc main_#t~nondet49#1;~mode3~0 := main_#t~nondet50#1;havoc main_#t~nondet50#1;~newmax3~0 := main_#t~nondet51#1;havoc main_#t~nondet51#1;~id4~0 := main_#t~nondet52#1;havoc main_#t~nondet52#1;~r4~0 := main_#t~nondet53#1;havoc main_#t~nondet53#1;~st4~0 := main_#t~nondet54#1;havoc main_#t~nondet54#1;~nl4~0 := main_#t~nondet55#1;havoc main_#t~nondet55#1;~m4~0 := main_#t~nondet56#1;havoc main_#t~nondet56#1;~max4~0 := main_#t~nondet57#1;havoc main_#t~nondet57#1;~mode4~0 := main_#t~nondet58#1;havoc main_#t~nondet58#1;~newmax4~0 := main_#t~nondet59#1;havoc main_#t~nondet59#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; 1467#L454 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 1468#L465 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 1633#L475 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 1634#L486 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 1674#L496 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 1546#L507 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 1737#L517 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 1660#L528 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 1685#L538 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 1590#L549 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 1591#L559 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 1566#L570 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 1446#L580 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 1447#L591 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 1687#L601 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 1457#L612 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 1458#L622 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 1710#L633 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 1554#L643 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 1555#L654 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 1561#L664 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 1504#L675 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 1622#L685 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 1650#L696 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 1758#L706 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 1508#L717 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 1509#L727 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 1450#L738 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 1558#L748 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 1559#L759 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 1582#L769 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 1583#L780 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 1627#L790 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 1628#L801 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 1638#L811 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 1639#L822 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 1454#L832 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 1455#L843 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 1567#L853 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 1569#L864 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 1688#L874 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 1601#L885 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 1602#L895 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 1643#L906 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 1774#L916 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 1700#L927 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 1729#L937 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 1462#L948 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 1463#L958 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 1466#L958-1 init_#res#1 := init_~tmp___23~0#1; 1648#L1143 main_#t~ret60#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret60#1;havoc main_#t~ret60#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; 1570#L22 assume !(0 == assume_abort_if_not_~cond#1); 1571#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; 1673#L1284-2 [2021-12-15 17:23:26,082 INFO L793 eck$LassoCheckResult]: Loop: 1673#L1284-2 assume !false;assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_#t~ite5#1, node1_#t~ite6#1, node1_~newmax~0#1;havoc node1_~newmax~0#1;node1_~newmax~0#1 := 0; 1870#L115 assume !(0 != ~mode1~0 % 256); 1869#L154 assume ~r1~0 % 256 < 3; 1760#L155 assume !(0 != ~ep12~0 % 256); 1592#L155-1 assume !(0 != ~ep13~0 % 256); 1606#L160 assume !(0 != ~ep14~0 % 256); 1532#L154-1 ~mode1~0 := 1; 1625#L115-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite7#1, node2_#t~ite8#1, node2_#t~ite9#1, node2_~newmax~1#1;havoc node2_~newmax~1#1;node2_~newmax~1#1 := 0; 1764#L182 assume !(0 != ~mode2~0 % 256); 1772#L221 assume !(~r2~0 % 256 < 3); 1608#L221-1 ~mode2~0 := 1; 1512#L182-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite10#1, node3_#t~ite11#1, node3_#t~ite12#1, node3_~newmax~2#1;havoc node3_~newmax~2#1;node3_~newmax~2#1 := 0; 1472#L249 assume !(0 != ~mode3~0 % 256); 1473#L288 assume !(~r3~0 % 256 < 3); 1528#L288-1 ~mode3~0 := 1; 1767#L249-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite13#1, node4_#t~ite14#1, node4_#t~ite15#1, node4_~newmax~3#1;havoc node4_~newmax~3#1;node4_~newmax~3#1 := 0; 1803#L316 assume !(0 != ~mode4~0 % 256); 1796#L355 assume !(~r4~0 % 256 < 3); 1789#L355-1 ~mode4~0 := 1; 1787#L316-2 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; 1786#L1151 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 1785#L1152 assume ~st1~0 + ~nl1~0 <= 1; 1784#L1153 assume ~st2~0 + ~nl2~0 <= 1; 1783#L1154 assume ~st3~0 + ~nl3~0 <= 1; 1782#L1155 assume ~st4~0 + ~nl4~0 <= 1; 1781#L1156 assume !(~r1~0 % 256 >= 3); 1732#L1159 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0; 1733#L1160 assume ~r1~0 % 256 < 3; 1780#L1165 assume !(~r1~0 % 256 >= 3); 1697#L1169 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0 + ~nl4~0; 1698#L1170 assume ~r1~0 % 256 < 3;check_~tmp~1#1 := 1; 1874#L1151-1 check_#res#1 := check_~tmp~1#1; 1873#L1203 main_#t~ret61#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret61#1;havoc main_#t~ret61#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; 1872#L1326 assume !(0 == assert_~arg#1 % 256); 1871#L1321 assume { :end_inline_assert } true; 1673#L1284-2 [2021-12-15 17:23:26,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:26,083 INFO L85 PathProgramCache]: Analyzing trace with hash 2064134942, now seen corresponding path program 3 times [2021-12-15 17:23:26,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:26,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416439053] [2021-12-15 17:23:26,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:26,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:26,154 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 17:23:26,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:26,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416439053] [2021-12-15 17:23:26,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416439053] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:26,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:26,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:23:26,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950294825] [2021-12-15 17:23:26,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:26,155 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:23:26,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:26,156 INFO L85 PathProgramCache]: Analyzing trace with hash 121921746, now seen corresponding path program 1 times [2021-12-15 17:23:26,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:26,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915247902] [2021-12-15 17:23:26,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:26,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:23:26,165 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:23:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:23:26,195 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:23:27,040 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 17:23:27,043 INFO L158 Benchmark]: Toolchain (without parser) took 3507.98ms. Allocated memory was 109.1MB in the beginning and 192.9MB in the end (delta: 83.9MB). Free memory was 78.6MB in the beginning and 137.4MB in the end (delta: -58.8MB). Peak memory consumption was 76.7MB. Max. memory is 16.1GB. [2021-12-15 17:23:27,044 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:23:27,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 681.88ms. Allocated memory is still 109.1MB. Free memory was 78.3MB in the beginning and 70.5MB in the end (delta: 7.8MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2021-12-15 17:23:27,044 INFO L158 Benchmark]: Boogie Procedure Inliner took 139.61ms. Allocated memory is still 109.1MB. Free memory was 70.5MB in the beginning and 65.6MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 17:23:27,045 INFO L158 Benchmark]: Boogie Preprocessor took 110.58ms. Allocated memory is still 109.1MB. Free memory was 65.6MB in the beginning and 61.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:23:27,045 INFO L158 Benchmark]: RCFGBuilder took 962.85ms. Allocated memory was 109.1MB in the beginning and 153.1MB in the end (delta: 44.0MB). Free memory was 61.8MB in the beginning and 87.0MB in the end (delta: -25.3MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2021-12-15 17:23:27,045 INFO L158 Benchmark]: BuchiAutomizer took 1597.25ms. Allocated memory was 153.1MB in the beginning and 192.9MB in the end (delta: 39.8MB). Free memory was 87.0MB in the beginning and 137.4MB in the end (delta: -50.4MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2021-12-15 17:23:27,047 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 681.88ms. Allocated memory is still 109.1MB. Free memory was 78.3MB in the beginning and 70.5MB in the end (delta: 7.8MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 139.61ms. Allocated memory is still 109.1MB. Free memory was 70.5MB in the beginning and 65.6MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 110.58ms. Allocated memory is still 109.1MB. Free memory was 65.6MB in the beginning and 61.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 962.85ms. Allocated memory was 109.1MB in the beginning and 153.1MB in the end (delta: 44.0MB). Free memory was 61.8MB in the beginning and 87.0MB in the end (delta: -25.3MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1597.25ms. Allocated memory was 153.1MB in the beginning and 192.9MB in the end (delta: 39.8MB). Free memory was 87.0MB in the beginning and 137.4MB in the end (delta: -50.4MB). Peak memory consumption was 40.5MB. 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 17:23:27,092 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