./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4_overflow.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4_overflow.ufo.UNBOUNDED.pals.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 315c7f7d4f861da6991110ab8f251d6e6bbcbe86dfcb4a71343434e33094f4a7 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:23:24,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:23:24,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:23:24,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:23:24,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:23:24,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:23:24,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:23:24,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:23:24,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:23:24,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:23:24,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:23:24,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:23:24,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:23:24,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:23:24,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:23:24,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:23:24,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:23:24,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:23:24,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:23:24,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:23:24,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:23:24,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:23:24,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:23:24,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:23:24,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:23:24,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:23:24,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:23:24,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:23:24,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:23:24,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:23:24,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:23:24,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:23:24,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:23:24,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:23:24,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:23:24,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:23:24,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:23:24,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:23:24,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:23:24,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:23:24,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:23:24,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:23:24,325 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:23:24,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:23:24,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:23:24,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:23:24,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:23:24,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:23:24,327 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:23:24,327 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:23:24,328 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:23:24,328 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:23:24,328 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:23:24,328 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:23:24,329 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:23:24,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:23:24,329 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:23:24,329 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:23:24,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:23:24,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:23:24,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:23:24,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:23:24,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:23:24,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:23:24,330 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:23:24,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:23:24,331 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:23:24,331 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:23:24,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:23:24,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:23:24,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:23:24,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:23:24,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:23:24,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:23:24,333 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:23:24,333 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 315c7f7d4f861da6991110ab8f251d6e6bbcbe86dfcb4a71343434e33094f4a7 [2021-12-15 17:23:24,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:23:24,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:23:24,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:23:24,540 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:23:24,541 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:23:24,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2021-12-15 17:23:24,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cba2689a/96283a79078d4140b7f6efe85050b742/FLAG21c387d63 [2021-12-15 17:23:24,997 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:23:24,998 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2021-12-15 17:23:25,006 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cba2689a/96283a79078d4140b7f6efe85050b742/FLAG21c387d63 [2021-12-15 17:23:25,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cba2689a/96283a79078d4140b7f6efe85050b742 [2021-12-15 17:23:25,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:23:25,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:23:25,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:23:25,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:23:25,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:23:25,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:25,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36cb360a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25, skipping insertion in model container [2021-12-15 17:23:25,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:25,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:23:25,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:23:25,326 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_overflow.ufo.UNBOUNDED.pals.c[31111,31124] [2021-12-15 17:23:25,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:23:25,333 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:23:25,411 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_overflow.ufo.UNBOUNDED.pals.c[31111,31124] [2021-12-15 17:23:25,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:23:25,422 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:23:25,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25 WrapperNode [2021-12-15 17:23:25,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:23:25,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:23:25,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:23:25,423 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:23:25,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:25,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:25,507 INFO L137 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 978 [2021-12-15 17:23:25,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:23:25,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:23:25,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:23:25,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:23:25,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:25,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:25,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:25,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:25,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:25,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:25,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:25,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:23:25,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:23:25,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:23:25,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:23:25,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:25,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:23:25,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:23:25,637 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 17:23:25,655 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 17:23:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:23:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:23:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:23:25,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:23:25,852 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:23:25,853 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:23:26,468 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:23:26,477 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:23:26,477 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 17:23:26,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:23:26 BoogieIcfgContainer [2021-12-15 17:23:26,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:23:26,480 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:23:26,480 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:23:26,483 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:23:26,484 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:23:26,484 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:23:25" (1/3) ... [2021-12-15 17:23:26,484 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dc21443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:23:26, skipping insertion in model container [2021-12-15 17:23:26,484 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:23:26,484 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (2/3) ... [2021-12-15 17:23:26,485 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dc21443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:23:26, skipping insertion in model container [2021-12-15 17:23:26,485 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:23:26,485 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:23:26" (3/3) ... [2021-12-15 17:23:26,486 INFO L388 chiAutomizerObserver]: Analyzing ICFG pals_opt-floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2021-12-15 17:23:26,528 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:23:26,528 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:23:26,529 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:23:26,529 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:23:26,529 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:23:26,529 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:23:26,529 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:23:26,529 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:23:26,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 323 states, 322 states have (on average 1.8043478260869565) internal successors, (581), 322 states have internal predecessors, (581), 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 17:23:26,577 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 123 [2021-12-15 17:23:26,577 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:23:26,577 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:23:26,585 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 17:23:26,586 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 17:23:26,586 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:23:26,587 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 323 states, 322 states have (on average 1.8043478260869565) internal successors, (581), 322 states have internal predecessors, (581), 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 17:23:26,596 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 123 [2021-12-15 17:23:26,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:23:26,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:23:26,599 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 17:23:26,600 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 17:23:26,605 INFO L791 eck$LassoCheckResult]: Stem: 314#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(50, 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; 218#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; 196#L442true assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 224#L453true init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 219#L463true assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 73#L474true init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 152#L484true assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 193#L495true init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 208#L505true assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 273#L516true init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 292#L526true assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 111#L537true init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 210#L547true assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 157#L558true init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 325#L568true assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 180#L579true init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 183#L589true assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 138#L600true init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 236#L610true assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 75#L621true init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 257#L631true assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 65#L642true init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 321#L652true assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 25#L663true init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 197#L673true assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 175#L684true init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 121#L694true assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 304#L705true init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 19#L715true assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 284#L726true init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 213#L736true assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 182#L747true init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 74#L757true assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 12#L768true init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 185#L778true assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 86#L789true init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 155#L799true assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 173#L810true init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 198#L820true assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 285#L831true init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 265#L841true assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 186#L852true init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 100#L862true assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 57#L873true init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 212#L883true assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 44#L894true init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 194#L904true assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 125#L915true init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 105#L925true assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 214#L936true init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 316#L946true assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 106#L946-1true init_#res#1 := init_~tmp___23~0#1; 246#L1131true 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; 61#L22true assume !(0 == assume_abort_if_not_~cond#1); 135#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; 62#L1272-2true [2021-12-15 17:23:26,606 INFO L793 eck$LassoCheckResult]: Loop: 62#L1272-2true 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; 76#L115true assume !(0 != ~mode1~0 % 256); 109#L151true assume !(~r1~0 % 256 < 3); 206#L151-1true ~mode1~0 := 1; 243#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; 317#L179true assume !(0 != ~mode2~0 % 256); 164#L215true assume !(~r2~0 % 256 < 3); 178#L215-1true ~mode2~0 := 1; 192#L179-2true 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; 266#L243true assume !(0 != ~mode3~0 % 256); 71#L279true assume !(~r3~0 % 256 < 3); 318#L279-1true ~mode3~0 := 1; 165#L243-2true 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; 262#L307true assume !(0 != ~mode4~0 % 256); 286#L343true assume !(~r4~0 % 256 < 3); 66#L343-1true ~mode4~0 := 1; 22#L307-2true 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; 223#L1139true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1#1 := 0; 217#L1139-1true check_#res#1 := check_~tmp~1#1; 235#L1191true 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; 195#L1314true assume !(0 == assert_~arg#1 % 256); 306#L1309true assume { :end_inline_assert } true; 62#L1272-2true [2021-12-15 17:23:26,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:26,610 INFO L85 PathProgramCache]: Analyzing trace with hash 2064134942, now seen corresponding path program 1 times [2021-12-15 17:23:26,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:26,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514833346] [2021-12-15 17:23:26,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:26,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:26,867 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 17:23:26,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:26,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514833346] [2021-12-15 17:23:26,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514833346] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:26,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:26,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:23:26,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968708211] [2021-12-15 17:23:26,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:26,873 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:23:26,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:26,874 INFO L85 PathProgramCache]: Analyzing trace with hash -340497803, now seen corresponding path program 1 times [2021-12-15 17:23:26,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:26,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981420501] [2021-12-15 17:23:26,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:26,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:26,973 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 17:23:26,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:26,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981420501] [2021-12-15 17:23:26,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981420501] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:26,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:26,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:23:26,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342687542] [2021-12-15 17:23:26,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:26,977 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:23:26,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:23:27,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 17:23:27,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 17:23:27,004 INFO L87 Difference]: Start difference. First operand has 323 states, 322 states have (on average 1.8043478260869565) internal successors, (581), 322 states have internal predecessors, (581), 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 17:23:27,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:23:27,099 INFO L93 Difference]: Finished difference Result 323 states and 577 transitions. [2021-12-15 17:23:27,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 17:23:27,105 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 323 states and 577 transitions. [2021-12-15 17:23:27,115 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 122 [2021-12-15 17:23:27,120 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 323 states to 318 states and 564 transitions. [2021-12-15 17:23:27,121 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 318 [2021-12-15 17:23:27,121 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 318 [2021-12-15 17:23:27,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 318 states and 564 transitions. [2021-12-15 17:23:27,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:23:27,126 INFO L681 BuchiCegarLoop]: Abstraction has 318 states and 564 transitions. [2021-12-15 17:23:27,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states and 564 transitions. [2021-12-15 17:23:27,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2021-12-15 17:23:27,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 318 states have (on average 1.7735849056603774) internal successors, (564), 317 states have internal predecessors, (564), 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 17:23:27,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 564 transitions. [2021-12-15 17:23:27,155 INFO L704 BuchiCegarLoop]: Abstraction has 318 states and 564 transitions. [2021-12-15 17:23:27,155 INFO L587 BuchiCegarLoop]: Abstraction has 318 states and 564 transitions. [2021-12-15 17:23:27,156 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:23:27,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 318 states and 564 transitions. [2021-12-15 17:23:27,157 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 122 [2021-12-15 17:23:27,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:23:27,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:23:27,159 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 17:23:27,159 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 17:23:27,159 INFO L791 eck$LassoCheckResult]: Stem: 980#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(50, 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; 958#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; 948#L442 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 675#L453 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 959#L463 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 811#L474 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 812#L484 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 828#L495 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 946#L505 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 781#L516 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 979#L526 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 783#L537 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 868#L547 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 914#L558 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 915#L568 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 665#L579 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 940#L589 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 851#L600 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 901#L610 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 810#L621 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 815#L631 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 737#L642 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 800#L652 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 717#L663 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 718#L673 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 689#L684 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 878#L694 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 879#L705 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 703#L715 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 692#L726 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 955#L736 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 770#L747 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 813#L757 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 686#L768 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 687#L778 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 832#L789 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 833#L799 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 732#L810 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 934#L820 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 670#L831 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 976#L841 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 788#L852 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 853#L862 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 785#L873 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 786#L883 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 756#L894 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 757#L904 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 857#L915 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 862#L925 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 836#L936 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 956#L946 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 673#L946-1 init_#res#1 := init_~tmp___23~0#1; 864#L1131 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; 791#L22 assume !(0 == assume_abort_if_not_~cond#1); 792#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; 793#L1272-2 [2021-12-15 17:23:27,159 INFO L793 eck$LassoCheckResult]: Loop: 793#L1272-2 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; 794#L115 assume !(0 != ~mode1~0 % 256); 816#L151 assume !(~r1~0 % 256 < 3); 684#L151-1 ~mode1~0 := 1; 850#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; 967#L179 assume !(0 != ~mode2~0 % 256); 918#L215 assume !(~r2~0 % 256 < 3); 860#L215-1 ~mode2~0 := 1; 938#L179-2 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; 943#L243 assume !(0 != ~mode3~0 % 256); 806#L279 assume !(~r3~0 % 256 < 3); 807#L279-1 ~mode3~0 := 1; 707#L243-2 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; 920#L307 assume !(0 != ~mode4~0 % 256); 974#L343 assume !(~r4~0 % 256 < 3); 799#L343-1 ~mode4~0 := 1; 708#L307-2 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; 709#L1139 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 961#L1140 assume ~st1~0 + ~nl1~0 <= 1; 928#L1141 assume ~st2~0 + ~nl2~0 <= 1; 929#L1142 assume ~st3~0 + ~nl3~0 <= 1; 865#L1143 assume ~st4~0 + ~nl4~0 <= 1; 866#L1144 assume ~r1~0 % 256 >= 3; 720#L1148 assume ~r1~0 % 256 < 3; 744#L1153 assume ~r1~0 % 256 >= 3; 724#L1158 assume ~r1~0 % 256 < 3;check_~tmp~1#1 := 1; 726#L1139-1 check_#res#1 := check_~tmp~1#1; 957#L1191 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; 944#L1314 assume !(0 == assert_~arg#1 % 256); 945#L1309 assume { :end_inline_assert } true; 793#L1272-2 [2021-12-15 17:23:27,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:27,160 INFO L85 PathProgramCache]: Analyzing trace with hash 2064134942, now seen corresponding path program 2 times [2021-12-15 17:23:27,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:27,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497583026] [2021-12-15 17:23:27,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:27,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:27,219 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 17:23:27,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:27,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497583026] [2021-12-15 17:23:27,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497583026] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:27,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:27,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:23:27,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36528926] [2021-12-15 17:23:27,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:27,220 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:23:27,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:27,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1528981060, now seen corresponding path program 1 times [2021-12-15 17:23:27,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:27,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544858061] [2021-12-15 17:23:27,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:27,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:27,245 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 17:23:27,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:27,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544858061] [2021-12-15 17:23:27,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544858061] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:27,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:27,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:23:27,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761421008] [2021-12-15 17:23:27,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:27,247 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:23:27,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:23:27,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:23:27,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:23:27,252 INFO L87 Difference]: Start difference. First operand 318 states and 564 transitions. cyclomatic complexity: 247 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 17:23:27,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:23:27,295 INFO L93 Difference]: Finished difference Result 415 states and 719 transitions. [2021-12-15 17:23:27,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:23:27,296 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 415 states and 719 transitions. [2021-12-15 17:23:27,299 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 219 [2021-12-15 17:23:27,301 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 415 states to 415 states and 719 transitions. [2021-12-15 17:23:27,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 415 [2021-12-15 17:23:27,302 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 415 [2021-12-15 17:23:27,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 415 states and 719 transitions. [2021-12-15 17:23:27,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:23:27,303 INFO L681 BuchiCegarLoop]: Abstraction has 415 states and 719 transitions. [2021-12-15 17:23:27,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states and 719 transitions. [2021-12-15 17:23:27,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2021-12-15 17:23:27,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 415 states have (on average 1.7325301204819277) internal successors, (719), 414 states have internal predecessors, (719), 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 17:23:27,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 719 transitions. [2021-12-15 17:23:27,314 INFO L704 BuchiCegarLoop]: Abstraction has 415 states and 719 transitions. [2021-12-15 17:23:27,314 INFO L587 BuchiCegarLoop]: Abstraction has 415 states and 719 transitions. [2021-12-15 17:23:27,314 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-15 17:23:27,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 415 states and 719 transitions. [2021-12-15 17:23:27,316 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 219 [2021-12-15 17:23:27,316 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:23:27,317 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:23:27,318 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 17:23:27,318 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 17:23:27,318 INFO L791 eck$LassoCheckResult]: Stem: 1727#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(50, 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; 1705#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; 1695#L442 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 1419#L453 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 1706#L463 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 1553#L474 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 1554#L484 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 1570#L495 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 1694#L505 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 1522#L516 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 1726#L526 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 1524#L537 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 1612#L547 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 1661#L558 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 1662#L568 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 1407#L579 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 1687#L589 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 1593#L600 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 1646#L610 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 1552#L621 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 1557#L631 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 1478#L642 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 1541#L652 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 1457#L663 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 1458#L673 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 1431#L684 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 1621#L694 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 1622#L705 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 1445#L715 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 1434#L726 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 1702#L736 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 1511#L747 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 1555#L757 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 1428#L768 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 1429#L778 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 1574#L789 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 1575#L799 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 1471#L810 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 1680#L820 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 1412#L831 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 1723#L841 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 1529#L852 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 1595#L862 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 1526#L873 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 1527#L883 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 1497#L894 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 1498#L904 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 1599#L915 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 1604#L925 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 1578#L936 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 1703#L946 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 1415#L946-1 init_#res#1 := init_~tmp___23~0#1; 1606#L1131 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; 1533#L22 assume !(0 == assume_abort_if_not_~cond#1); 1534#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; 1640#L1272-2 [2021-12-15 17:23:27,319 INFO L793 eck$LassoCheckResult]: Loop: 1640#L1272-2 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; 1731#L115 assume !(0 != ~mode1~0 % 256); 1730#L151 assume ~r1~0 % 256 < 3; 1492#L152 assume !(0 != ~ep12~0 % 256); 1437#L152-1 assume !(0 != ~ep13~0 % 256); 1425#L157 assume !(0 != ~ep14~0 % 256); 1426#L151-1 ~mode1~0 := 1; 1800#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; 1797#L179 assume !(0 != ~mode2~0 % 256); 1793#L215 assume !(~r2~0 % 256 < 3); 1788#L215-1 ~mode2~0 := 1; 1786#L179-2 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; 1784#L243 assume !(0 != ~mode3~0 % 256); 1770#L279 assume !(~r3~0 % 256 < 3); 1769#L279-1 ~mode3~0 := 1; 1760#L243-2 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; 1758#L307 assume !(0 != ~mode4~0 % 256); 1751#L343 assume !(~r4~0 % 256 < 3); 1744#L343-1 ~mode4~0 := 1; 1742#L307-2 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; 1741#L1139 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 1740#L1140 assume ~st1~0 + ~nl1~0 <= 1; 1739#L1141 assume ~st2~0 + ~nl2~0 <= 1; 1738#L1142 assume ~st3~0 + ~nl3~0 <= 1; 1737#L1143 assume ~st4~0 + ~nl4~0 <= 1; 1736#L1144 assume !(~r1~0 % 256 >= 3); 1461#L1147 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0; 1462#L1148 assume ~r1~0 % 256 < 3; 1729#L1153 assume !(~r1~0 % 256 >= 3); 1653#L1157 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0 + ~nl4~0; 1654#L1158 assume ~r1~0 % 256 < 3;check_~tmp~1#1 := 1; 1735#L1139-1 check_#res#1 := check_~tmp~1#1; 1734#L1191 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; 1733#L1314 assume !(0 == assert_~arg#1 % 256); 1732#L1309 assume { :end_inline_assert } true; 1640#L1272-2 [2021-12-15 17:23:27,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:27,319 INFO L85 PathProgramCache]: Analyzing trace with hash 2064134942, now seen corresponding path program 3 times [2021-12-15 17:23:27,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:27,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045359364] [2021-12-15 17:23:27,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:27,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:27,372 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 17:23:27,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:27,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045359364] [2021-12-15 17:23:27,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045359364] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:27,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:27,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:23:27,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730806026] [2021-12-15 17:23:27,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:27,374 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:23:27,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:27,375 INFO L85 PathProgramCache]: Analyzing trace with hash -110224707, now seen corresponding path program 1 times [2021-12-15 17:23:27,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:27,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417527367] [2021-12-15 17:23:27,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:27,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:23:27,392 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:23:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:23:27,420 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:23:28,349 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 17:23:28,352 INFO L158 Benchmark]: Toolchain (without parser) took 3327.04ms. Allocated memory was 98.6MB in the beginning and 178.3MB in the end (delta: 79.7MB). Free memory was 67.6MB in the beginning and 71.2MB in the end (delta: -3.5MB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. [2021-12-15 17:23:28,352 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory was 55.5MB in the beginning and 55.5MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:23:28,353 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.91ms. Allocated memory is still 98.6MB. Free memory was 67.4MB in the beginning and 61.6MB in the end (delta: 5.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 17:23:28,353 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.10ms. Allocated memory is still 98.6MB. Free memory was 61.6MB in the beginning and 56.9MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:23:28,354 INFO L158 Benchmark]: Boogie Preprocessor took 76.67ms. Allocated memory is still 98.6MB. Free memory was 56.9MB in the beginning and 53.0MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:23:28,354 INFO L158 Benchmark]: RCFGBuilder took 893.31ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 52.7MB in the beginning and 96.2MB in the end (delta: -43.5MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2021-12-15 17:23:28,355 INFO L158 Benchmark]: BuchiAutomizer took 1871.29ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 96.2MB in the beginning and 71.2MB in the end (delta: 25.0MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. [2021-12-15 17:23:28,357 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory was 55.5MB in the beginning and 55.5MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.91ms. Allocated memory is still 98.6MB. Free memory was 67.4MB in the beginning and 61.6MB in the end (delta: 5.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.10ms. Allocated memory is still 98.6MB. Free memory was 61.6MB in the beginning and 56.9MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.67ms. Allocated memory is still 98.6MB. Free memory was 56.9MB in the beginning and 53.0MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 893.31ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 52.7MB in the beginning and 96.2MB in the end (delta: -43.5MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 1871.29ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 96.2MB in the beginning and 71.2MB in the end (delta: 25.0MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 17:23:28,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable