./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ed935744e0b15a55a11878fa4d21c1a0b8f1c4098e81aa4afd54cd8910ee834a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:23:18,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:23:18,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:23:18,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:23:18,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:23:18,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:23:18,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:23:18,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:23:18,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:23:18,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:23:18,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:23:18,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:23:18,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:23:18,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:23:18,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:23:18,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:23:18,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:23:18,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:23:18,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:23:18,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:23:18,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:23:18,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:23:18,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:23:18,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:23:18,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:23:18,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:23:18,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:23:18,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:23:18,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:23:18,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:23:18,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:23:18,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:23:18,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:23:18,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:23:18,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:23:18,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:23:18,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:23:18,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:23:18,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:23:18,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:23:18,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:23:18,996 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:23:19,015 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:23:19,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:23:19,015 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:23:19,015 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:23:19,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:23:19,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:23:19,017 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:23:19,017 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:23:19,017 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:23:19,017 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:23:19,017 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:23:19,018 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:23:19,018 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:23:19,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:23:19,018 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:23:19,018 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:23:19,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:23:19,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:23:19,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:23:19,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:23:19,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:23:19,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:23:19,019 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:23:19,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:23:19,019 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:23:19,019 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:23:19,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:23:19,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:23:19,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:23:19,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:23:19,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:23:19,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:23:19,021 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:23:19,021 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed935744e0b15a55a11878fa4d21c1a0b8f1c4098e81aa4afd54cd8910ee834a [2021-12-15 17:23:19,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:23:19,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:23:19,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:23:19,266 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:23:19,267 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:23:19,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c [2021-12-15 17:23:19,325 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bcd569bb/d88ccbd0d0f24106a84331816691fe54/FLAGec72dd6d7 [2021-12-15 17:23:19,737 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:23:19,738 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c [2021-12-15 17:23:19,752 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bcd569bb/d88ccbd0d0f24106a84331816691fe54/FLAGec72dd6d7 [2021-12-15 17:23:19,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bcd569bb/d88ccbd0d0f24106a84331816691fe54 [2021-12-15 17:23:19,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:23:19,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:23:19,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:23:19,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:23:19,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:23:19,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:23:19" (1/1) ... [2021-12-15 17:23:19,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10d2b9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:19, skipping insertion in model container [2021-12-15 17:23:19,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:23:19" (1/1) ... [2021-12-15 17:23:19,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:23:19,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:23:20,030 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.4.1.ufo.UNBOUNDED.pals.c[26792,26805] [2021-12-15 17:23:20,030 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:23:20,037 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:23:20,102 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.4.1.ufo.UNBOUNDED.pals.c[26792,26805] [2021-12-15 17:23:20,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:23:20,119 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:23:20,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:20 WrapperNode [2021-12-15 17:23:20,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:23:20,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:23:20,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:23:20,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:23:20,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:20" (1/1) ... [2021-12-15 17:23:20,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:20" (1/1) ... [2021-12-15 17:23:20,184 INFO L137 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 962 [2021-12-15 17:23:20,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:23:20,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:23:20,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:23:20,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:23:20,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:20" (1/1) ... [2021-12-15 17:23:20,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:20" (1/1) ... [2021-12-15 17:23:20,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:20" (1/1) ... [2021-12-15 17:23:20,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:20" (1/1) ... [2021-12-15 17:23:20,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:20" (1/1) ... [2021-12-15 17:23:20,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:20" (1/1) ... [2021-12-15 17:23:20,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:20" (1/1) ... [2021-12-15 17:23:20,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:23:20,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:23:20,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:23:20,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:23:20,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:20" (1/1) ... [2021-12-15 17:23:20,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:23:20,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:23:20,345 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 17:23:20,351 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 17:23:20,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:23:20,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:23:20,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:23:20,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:23:20,477 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:23:20,478 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:23:21,173 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:23:21,190 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:23:21,190 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 17:23:21,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:23:21 BoogieIcfgContainer [2021-12-15 17:23:21,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:23:21,195 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:23:21,195 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:23:21,200 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:23:21,201 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:23:21,201 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:23:19" (1/3) ... [2021-12-15 17:23:21,202 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26c3fa37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:23:21, skipping insertion in model container [2021-12-15 17:23:21,202 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:23:21,202 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:20" (2/3) ... [2021-12-15 17:23:21,203 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26c3fa37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:23:21, skipping insertion in model container [2021-12-15 17:23:21,203 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:23:21,203 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:23:21" (3/3) ... [2021-12-15 17:23:21,204 INFO L388 chiAutomizerObserver]: Analyzing ICFG pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c [2021-12-15 17:23:21,248 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:23:21,248 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:23:21,248 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:23:21,249 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:23:21,249 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:23:21,249 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:23:21,249 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:23:21,249 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:23:21,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 319 states, 318 states have (on average 1.7893081761006289) internal successors, (569), 318 states have internal predecessors, (569), 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 17:23:21,300 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 131 [2021-12-15 17:23:21,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:23:21,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:23:21,309 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 17:23:21,309 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 17:23:21,310 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:23:21,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 319 states, 318 states have (on average 1.7893081761006289) internal successors, (569), 318 states have internal predecessors, (569), 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 17:23:21,324 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 131 [2021-12-15 17:23:21,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:23:21,324 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:23:21,326 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 17:23:21,326 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 17:23:21,346 INFO L791 eck$LassoCheckResult]: Stem: 316#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(43, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0;~newmax4~0 := 0; 212#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~nondet44#1, main_#t~nondet45#1, main_#t~nondet46#1, main_#t~nondet47#1, main_#t~nondet48#1, main_#t~nondet49#1, main_#t~nondet50#1, main_#t~nondet51#1, main_#t~nondet52#1, main_#t~nondet53#1, main_#t~nondet54#1, main_#t~nondet55#1, main_#t~nondet56#1, main_#t~nondet57#1, main_#t~nondet58#1, main_#t~nondet59#1, main_#t~ret60#1, main_#t~ret61#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~ep12~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~ep13~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~ep14~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~ep21~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~ep23~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~ep24~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~ep31~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~ep32~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~ep34~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~ep41~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~ep42~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~ep43~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~id1~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~r1~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~st1~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~nl1~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~m1~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~max1~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~mode1~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~newmax1~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~id2~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~r2~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~st2~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~nl2~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~m2~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~max2~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~mode2~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~newmax2~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;~id3~0 := main_#t~nondet44#1;havoc main_#t~nondet44#1;~r3~0 := main_#t~nondet45#1;havoc main_#t~nondet45#1;~st3~0 := main_#t~nondet46#1;havoc main_#t~nondet46#1;~nl3~0 := main_#t~nondet47#1;havoc main_#t~nondet47#1;~m3~0 := main_#t~nondet48#1;havoc main_#t~nondet48#1;~max3~0 := main_#t~nondet49#1;havoc main_#t~nondet49#1;~mode3~0 := main_#t~nondet50#1;havoc main_#t~nondet50#1;~newmax3~0 := main_#t~nondet51#1;havoc main_#t~nondet51#1;~id4~0 := main_#t~nondet52#1;havoc main_#t~nondet52#1;~r4~0 := main_#t~nondet53#1;havoc main_#t~nondet53#1;~st4~0 := main_#t~nondet54#1;havoc main_#t~nondet54#1;~nl4~0 := main_#t~nondet55#1;havoc main_#t~nondet55#1;~m4~0 := main_#t~nondet56#1;havoc main_#t~nondet56#1;~max4~0 := main_#t~nondet57#1;havoc main_#t~nondet57#1;~mode4~0 := main_#t~nondet58#1;havoc main_#t~nondet58#1;~newmax4~0 := main_#t~nondet59#1;havoc main_#t~nondet59#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r141~0#1, init_~r211~0#1, init_~r231~0#1, init_~r241~0#1, init_~r311~0#1, init_~r321~0#1, init_~r341~0#1, init_~r411~0#1, init_~r421~0#1, init_~r431~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r142~0#1, init_~tmp___1~0#1, init_~r212~0#1, init_~tmp___2~0#1, init_~r232~0#1, init_~tmp___3~0#1, init_~r242~0#1, init_~tmp___4~0#1, init_~r312~0#1, init_~tmp___5~0#1, init_~r322~0#1, init_~tmp___6~0#1, init_~r342~0#1, init_~tmp___7~0#1, init_~r412~0#1, init_~tmp___8~0#1, init_~r422~0#1, init_~tmp___9~0#1, init_~r432~0#1, init_~tmp___10~0#1, init_~r123~0#1, init_~tmp___11~0#1, init_~r133~0#1, init_~tmp___12~0#1, init_~r143~0#1, init_~tmp___13~0#1, init_~r213~0#1, init_~tmp___14~0#1, init_~r233~0#1, init_~tmp___15~0#1, init_~r243~0#1, init_~tmp___16~0#1, init_~r313~0#1, init_~tmp___17~0#1, init_~r323~0#1, init_~tmp___18~0#1, init_~r343~0#1, init_~tmp___19~0#1, init_~r413~0#1, init_~tmp___20~0#1, init_~r423~0#1, init_~tmp___21~0#1, init_~r433~0#1, init_~tmp___22~0#1, init_~tmp___23~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r141~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r241~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r341~0#1;havoc init_~r411~0#1;havoc init_~r421~0#1;havoc init_~r431~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r142~0#1;havoc init_~tmp___1~0#1;havoc init_~r212~0#1;havoc init_~tmp___2~0#1;havoc init_~r232~0#1;havoc init_~tmp___3~0#1;havoc init_~r242~0#1;havoc init_~tmp___4~0#1;havoc init_~r312~0#1;havoc init_~tmp___5~0#1;havoc init_~r322~0#1;havoc init_~tmp___6~0#1;havoc init_~r342~0#1;havoc init_~tmp___7~0#1;havoc init_~r412~0#1;havoc init_~tmp___8~0#1;havoc init_~r422~0#1;havoc init_~tmp___9~0#1;havoc init_~r432~0#1;havoc init_~tmp___10~0#1;havoc init_~r123~0#1;havoc init_~tmp___11~0#1;havoc init_~r133~0#1;havoc init_~tmp___12~0#1;havoc init_~r143~0#1;havoc init_~tmp___13~0#1;havoc init_~r213~0#1;havoc init_~tmp___14~0#1;havoc init_~r233~0#1;havoc init_~tmp___15~0#1;havoc init_~r243~0#1;havoc init_~tmp___16~0#1;havoc init_~r313~0#1;havoc init_~tmp___17~0#1;havoc init_~r323~0#1;havoc init_~tmp___18~0#1;havoc init_~r343~0#1;havoc init_~tmp___19~0#1;havoc init_~r413~0#1;havoc init_~tmp___20~0#1;havoc init_~r423~0#1;havoc init_~tmp___21~0#1;havoc init_~r433~0#1;havoc init_~tmp___22~0#1;havoc init_~tmp___23~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r141~0#1 := ~ep14~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r241~0#1 := ~ep24~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0;init_~r341~0#1 := ~ep34~0;init_~r411~0#1 := ~ep41~0;init_~r421~0#1 := ~ep42~0;init_~r431~0#1 := ~ep43~0; 8#L454true assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 166#L465true init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 103#L475true assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 133#L486true init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 272#L496true assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 192#L507true init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 274#L517true assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 216#L528true init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 142#L538true assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 72#L549true init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 218#L559true assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 58#L570true init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 3#L580true assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 144#L591true init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 235#L601true assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 7#L612true init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 287#L622true assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 161#L633true init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 50#L643true assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 141#L654true init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 55#L664true assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 93#L675true init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 111#L685true assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 221#L696true init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 304#L706true assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 28#L717true init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 188#L727true assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 84#L738true init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 53#L748true assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 209#L759true init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 67#L769true assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 175#L780true init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 98#L790true assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 307#L801true init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 106#L811true assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 259#L822true init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 6#L832true assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 104#L843true init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 59#L853true assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 145#L864true init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 264#L874true assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 80#L885true init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 109#L895true assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 297#L906true init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 314#L916true assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 184#L927true init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 273#L937true assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 10#L948true init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 148#L958true assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 315#L958-1true init_#res#1 := init_~tmp___23~0#1; 232#L1095true 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); 132#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; 243#L1236-2true [2021-12-15 17:23:21,346 INFO L793 eck$LassoCheckResult]: Loop: 243#L1236-2true 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; 87#L115true assume !(0 != ~mode1~0 % 256); 121#L154true assume !(~r1~0 % 256 < 3); 312#L154-1true ~mode1~0 := 1; 240#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; 296#L182true assume !(0 != ~mode2~0 % 256); 276#L221true assume !(~r2~0 % 256 < 3); 86#L221-1true ~mode2~0 := 1; 30#L182-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite10#1, node3_#t~ite11#1, node3_#t~ite12#1, node3_~newmax~2#1;havoc node3_~newmax~2#1;node3_~newmax~2#1 := 0; 13#L249true assume !(0 != ~mode3~0 % 256); 40#L288true assume !(~r3~0 % 256 < 3); 249#L288-1true ~mode3~0 := 1; 35#L249-2true assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite13#1, node4_#t~ite14#1, node4_#t~ite15#1, node4_~newmax~3#1;havoc node4_~newmax~3#1;node4_~newmax~3#1 := 0; 311#L316true assume !(0 != ~mode4~0 % 256); 208#L355true assume !(~r4~0 % 256 < 3); 321#L355-1true ~mode4~0 := 1; 257#L316-2true assume { :end_inline_node4 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 266#L1103true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1#1 := 0; 60#L1103-1true check_#res#1 := check_~tmp~1#1; 31#L1155true 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; 234#L1278true assume !(0 == assert_~arg#1 % 256); 301#L1273true assume { :end_inline_assert } true; 243#L1236-2true [2021-12-15 17:23:21,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:21,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1995424982, now seen corresponding path program 1 times [2021-12-15 17:23:21,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:21,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184266417] [2021-12-15 17:23:21,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:21,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:21,697 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 17:23:21,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:21,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184266417] [2021-12-15 17:23:21,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184266417] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:21,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:21,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:23:21,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660331425] [2021-12-15 17:23:21,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:21,705 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:23:21,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:21,708 INFO L85 PathProgramCache]: Analyzing trace with hash -334475503, now seen corresponding path program 1 times [2021-12-15 17:23:21,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:21,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623321612] [2021-12-15 17:23:21,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:21,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:21,788 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 17:23:21,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:21,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623321612] [2021-12-15 17:23:21,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623321612] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:21,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:21,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:23:21,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623865506] [2021-12-15 17:23:21,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:21,791 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:23:21,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:23:21,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 17:23:21,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 17:23:21,822 INFO L87 Difference]: Start difference. First operand has 319 states, 318 states have (on average 1.7893081761006289) internal successors, (569), 318 states have internal predecessors, (569), 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 17:23:21,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:23:21,931 INFO L93 Difference]: Finished difference Result 319 states and 565 transitions. [2021-12-15 17:23:21,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 17:23:21,938 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 565 transitions. [2021-12-15 17:23:21,953 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 130 [2021-12-15 17:23:21,966 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 314 states and 552 transitions. [2021-12-15 17:23:21,967 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 314 [2021-12-15 17:23:21,969 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 314 [2021-12-15 17:23:21,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 314 states and 552 transitions. [2021-12-15 17:23:21,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:23:21,977 INFO L681 BuchiCegarLoop]: Abstraction has 314 states and 552 transitions. [2021-12-15 17:23:22,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states and 552 transitions. [2021-12-15 17:23:22,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2021-12-15 17:23:22,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 314 states have (on average 1.7579617834394905) internal successors, (552), 313 states have internal predecessors, (552), 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 17:23:22,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 552 transitions. [2021-12-15 17:23:22,059 INFO L704 BuchiCegarLoop]: Abstraction has 314 states and 552 transitions. [2021-12-15 17:23:22,059 INFO L587 BuchiCegarLoop]: Abstraction has 314 states and 552 transitions. [2021-12-15 17:23:22,059 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:23:22,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 314 states and 552 transitions. [2021-12-15 17:23:22,062 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 130 [2021-12-15 17:23:22,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:23:22,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:23:22,064 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 17:23:22,079 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 17:23:22,079 INFO L791 eck$LassoCheckResult]: Stem: 969#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(43, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0;~newmax4~0 := 0; 943#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; 669#L454 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 670#L465 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 837#L475 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 838#L486 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 875#L496 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 751#L507 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 929#L517 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 861#L528 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 885#L538 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 795#L549 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 796#L559 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 769#L570 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 656#L580 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 657#L591 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 887#L601 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 667#L612 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 668#L622 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 909#L633 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 757#L643 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 758#L654 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 764#L664 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 711#L675 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 826#L685 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 852#L696 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 951#L706 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 715#L717 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 716#L727 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 660#L738 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 762#L748 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 763#L759 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 786#L769 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 787#L780 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 829#L790 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 830#L801 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 842#L811 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 843#L822 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 664#L832 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 665#L843 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 771#L853 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 773#L864 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 888#L874 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 805#L885 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 806#L895 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 846#L906 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 966#L916 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 898#L927 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 926#L937 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 675#L948 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 676#L958 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 678#L958-1 init_#res#1 := init_~tmp___23~0#1; 953#L1095 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; 774#L22 assume !(0 == assume_abort_if_not_~cond#1); 775#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; 874#L1236-2 [2021-12-15 17:23:22,080 INFO L793 eck$LassoCheckResult]: Loop: 874#L1236-2 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; 814#L115 assume !(0 != ~mode1~0 % 256); 816#L154 assume !(~r1~0 % 256 < 3); 738#L154-1 ~mode1~0 := 1; 827#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; 958#L182 assume !(0 != ~mode2~0 % 256); 965#L221 assume !(~r2~0 % 256 < 3); 813#L221-1 ~mode2~0 := 1; 719#L182-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite10#1, node3_#t~ite11#1, node3_#t~ite12#1, node3_~newmax~2#1;havoc node3_~newmax~2#1;node3_~newmax~2#1 := 0; 682#L249 assume !(0 != ~mode3~0 % 256); 683#L288 assume !(~r3~0 % 256 < 3); 733#L288-1 ~mode3~0 := 1; 730#L249-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite13#1, node4_#t~ite14#1, node4_#t~ite15#1, node4_~newmax~3#1;havoc node4_~newmax~3#1;node4_~newmax~3#1 := 0; 731#L316 assume !(0 != ~mode4~0 % 256); 941#L355 assume !(~r4~0 % 256 < 3); 701#L355-1 ~mode4~0 := 1; 726#L316-2 assume { :end_inline_node4 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 961#L1103 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 962#L1104 assume ~st1~0 + ~nl1~0 <= 1; 835#L1105 assume ~st2~0 + ~nl2~0 <= 1; 836#L1106 assume ~st3~0 + ~nl3~0 <= 1; 925#L1107 assume ~st4~0 + ~nl4~0 <= 1; 727#L1108 assume ~r1~0 % 256 >= 3; 728#L1112 assume ~r1~0 % 256 < 3; 956#L1117 assume ~r1~0 % 256 >= 3; 756#L1122 assume ~r1~0 % 256 < 3;check_~tmp~1#1 := 1; 770#L1103-1 check_#res#1 := check_~tmp~1#1; 720#L1155 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; 721#L1278 assume !(0 == assert_~arg#1 % 256); 954#L1273 assume { :end_inline_assert } true; 874#L1236-2 [2021-12-15 17:23:22,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:22,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1995424982, now seen corresponding path program 2 times [2021-12-15 17:23:22,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:22,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668367809] [2021-12-15 17:23:22,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:22,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:22,214 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 17:23:22,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:22,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668367809] [2021-12-15 17:23:22,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668367809] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:22,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:22,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:23:22,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486882308] [2021-12-15 17:23:22,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:22,218 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:23:22,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:22,220 INFO L85 PathProgramCache]: Analyzing trace with hash -583919392, now seen corresponding path program 1 times [2021-12-15 17:23:22,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:22,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880215526] [2021-12-15 17:23:22,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:22,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:22,263 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 17:23:22,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:22,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880215526] [2021-12-15 17:23:22,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880215526] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:22,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:22,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:23:22,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424545659] [2021-12-15 17:23:22,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:22,269 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:23:22,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:23:22,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:23:22,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:23:22,270 INFO L87 Difference]: Start difference. First operand 314 states and 552 transitions. cyclomatic complexity: 239 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 17:23:22,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:23:22,313 INFO L93 Difference]: Finished difference Result 419 states and 719 transitions. [2021-12-15 17:23:22,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:23:22,314 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 419 states and 719 transitions. [2021-12-15 17:23:22,318 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 235 [2021-12-15 17:23:22,320 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 419 states to 419 states and 719 transitions. [2021-12-15 17:23:22,320 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 419 [2021-12-15 17:23:22,321 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 419 [2021-12-15 17:23:22,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 419 states and 719 transitions. [2021-12-15 17:23:22,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:23:22,322 INFO L681 BuchiCegarLoop]: Abstraction has 419 states and 719 transitions. [2021-12-15 17:23:22,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states and 719 transitions. [2021-12-15 17:23:22,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 417. [2021-12-15 17:23:22,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 417 states have (on average 1.7170263788968825) internal successors, (716), 416 states have internal predecessors, (716), 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 17:23:22,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 716 transitions. [2021-12-15 17:23:22,355 INFO L704 BuchiCegarLoop]: Abstraction has 417 states and 716 transitions. [2021-12-15 17:23:22,355 INFO L587 BuchiCegarLoop]: Abstraction has 417 states and 716 transitions. [2021-12-15 17:23:22,355 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-15 17:23:22,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 417 states and 716 transitions. [2021-12-15 17:23:22,359 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 233 [2021-12-15 17:23:22,359 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:23:22,359 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:23:22,361 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 17:23:22,361 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 17:23:22,361 INFO L791 eck$LassoCheckResult]: Stem: 1716#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(43, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0;~newmax4~0 := 0; 1686#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; 1419#L454 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 1420#L465 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 1579#L475 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 1580#L486 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 1617#L496 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 1492#L507 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 1671#L517 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 1603#L528 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 1627#L538 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 1536#L549 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 1537#L559 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 1510#L570 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 1400#L580 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 1401#L591 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 1629#L601 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 1409#L612 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 1410#L622 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 1650#L633 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 1496#L643 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 1497#L654 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 1505#L664 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 1453#L675 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 1565#L685 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 1594#L696 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 1694#L706 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 1457#L717 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 1458#L727 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 1399#L738 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 1502#L748 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 1503#L759 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 1526#L769 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 1527#L780 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 1571#L790 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 1572#L801 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 1584#L811 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 1585#L822 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 1406#L832 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 1407#L843 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 1511#L853 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 1513#L864 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 1630#L874 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 1546#L885 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 1547#L895 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 1588#L906 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 1713#L916 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 1640#L927 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 1667#L937 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 1414#L948 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 1415#L958 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 1417#L958-1 init_#res#1 := init_~tmp___23~0#1; 1699#L1095 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; 1515#L22 assume !(0 == assume_abort_if_not_~cond#1); 1516#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; 1616#L1236-2 [2021-12-15 17:23:22,362 INFO L793 eck$LassoCheckResult]: Loop: 1616#L1236-2 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; 1718#L115 assume !(0 != ~mode1~0 % 256); 1717#L154 assume ~r1~0 % 256 < 3; 1698#L155 assume !(0 != ~ep12~0 % 256); 1535#L155-1 assume !(0 != ~ep13~0 % 256); 1550#L160 assume !(0 != ~ep14~0 % 256); 1479#L154-1 ~mode1~0 := 1; 1796#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; 1792#L182 assume !(0 != ~mode2~0 % 256); 1789#L221 assume !(~r2~0 % 256 < 3); 1781#L221-1 ~mode2~0 := 1; 1777#L182-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite10#1, node3_#t~ite11#1, node3_#t~ite12#1, node3_~newmax~2#1;havoc node3_~newmax~2#1;node3_~newmax~2#1 := 0; 1771#L249 assume !(0 != ~mode3~0 % 256); 1769#L288 assume !(~r3~0 % 256 < 3); 1758#L288-1 ~mode3~0 := 1; 1757#L249-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite13#1, node4_#t~ite14#1, node4_#t~ite15#1, node4_~newmax~3#1;havoc node4_~newmax~3#1;node4_~newmax~3#1 := 0; 1756#L316 assume !(0 != ~mode4~0 % 256); 1732#L355 assume !(~r4~0 % 256 < 3); 1731#L355-1 ~mode4~0 := 1; 1729#L316-2 assume { :end_inline_node4 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 1728#L1103 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 1726#L1104 assume ~st1~0 + ~nl1~0 <= 1; 1724#L1105 assume ~st2~0 + ~nl2~0 <= 1; 1722#L1106 assume ~st3~0 + ~nl3~0 <= 1; 1720#L1107 assume ~st4~0 + ~nl4~0 <= 1; 1719#L1108 assume !(~r1~0 % 256 >= 3); 1696#L1111 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0; 1697#L1112 assume ~r1~0 % 256 < 3; 1814#L1117 assume !(~r1~0 % 256 >= 3); 1500#L1121 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0 + ~nl4~0; 1501#L1122 assume ~r1~0 % 256 < 3;check_~tmp~1#1 := 1; 1727#L1103-1 check_#res#1 := check_~tmp~1#1; 1725#L1155 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; 1723#L1278 assume !(0 == assert_~arg#1 % 256); 1721#L1273 assume { :end_inline_assert } true; 1616#L1236-2 [2021-12-15 17:23:22,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:22,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1995424982, now seen corresponding path program 3 times [2021-12-15 17:23:22,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:22,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112594668] [2021-12-15 17:23:22,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:22,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:22,435 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 17:23:22,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:22,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112594668] [2021-12-15 17:23:22,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112594668] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:22,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:22,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:23:22,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576897703] [2021-12-15 17:23:22,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:22,437 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:23:22,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:22,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1981818486, now seen corresponding path program 1 times [2021-12-15 17:23:22,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:22,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797321895] [2021-12-15 17:23:22,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:22,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:23:22,455 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:23:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:23:22,504 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:23:23,546 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 17:23:23,549 INFO L158 Benchmark]: Toolchain (without parser) took 3781.82ms. Allocated memory was 100.7MB in the beginning and 148.9MB in the end (delta: 48.2MB). Free memory was 68.7MB in the beginning and 109.6MB in the end (delta: -40.9MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2021-12-15 17:23:23,550 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory is still 42.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:23:23,550 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.17ms. Allocated memory is still 100.7MB. Free memory was 68.4MB in the beginning and 65.7MB in the end (delta: 2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 17:23:23,550 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.21ms. Allocated memory is still 100.7MB. Free memory was 65.7MB in the beginning and 61.0MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:23:23,551 INFO L158 Benchmark]: Boogie Preprocessor took 78.86ms. Allocated memory is still 100.7MB. Free memory was 61.0MB in the beginning and 56.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:23:23,551 INFO L158 Benchmark]: RCFGBuilder took 914.95ms. Allocated memory is still 100.7MB. Free memory was 56.8MB in the beginning and 54.4MB in the end (delta: 2.4MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2021-12-15 17:23:23,551 INFO L158 Benchmark]: BuchiAutomizer took 2353.27ms. Allocated memory was 100.7MB in the beginning and 148.9MB in the end (delta: 48.2MB). Free memory was 54.4MB in the beginning and 109.6MB in the end (delta: -55.1MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2021-12-15 17:23:23,554 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory is still 42.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.17ms. Allocated memory is still 100.7MB. Free memory was 68.4MB in the beginning and 65.7MB in the end (delta: 2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.21ms. Allocated memory is still 100.7MB. Free memory was 65.7MB in the beginning and 61.0MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.86ms. Allocated memory is still 100.7MB. Free memory was 61.0MB in the beginning and 56.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 914.95ms. Allocated memory is still 100.7MB. Free memory was 56.8MB in the beginning and 54.4MB in the end (delta: 2.4MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 2353.27ms. Allocated memory was 100.7MB in the beginning and 148.9MB in the end (delta: 48.2MB). Free memory was 54.4MB in the beginning and 109.6MB in the end (delta: -55.1MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 17:23:23,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable