./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.ufo.BOUNDED-8.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.ufo.BOUNDED-8.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 fe9d78f75108492828570ec5eb222efdf0cf36e1ec4bcab23f2d45d29dbfe193 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:23:24,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:23:24,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:23:24,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:23:24,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:23:24,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:23:24,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:23:24,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:23:24,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:23:24,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:23:24,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:23:24,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:23:24,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:23:24,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:23:24,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:23:24,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:23:24,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:23:24,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:23:24,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:23:24,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:23:24,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:23:24,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:23:24,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:23:24,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:23:24,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:23:24,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:23:24,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:23:24,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:23:24,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:23:24,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:23:24,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:23:24,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:23:24,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:23:24,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:23:24,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:23:24,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:23:24,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:23:24,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:23:24,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:23:24,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:23:24,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:23:24,259 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:23:24,280 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:23:24,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:23:24,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:23:24,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:23:24,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:23:24,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:23:24,282 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:23:24,282 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:23:24,282 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:23:24,282 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:23:24,283 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:23:24,283 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:23:24,283 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:23:24,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:23:24,283 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:23:24,283 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:23:24,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:23:24,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:23:24,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:23:24,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:23:24,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:23:24,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:23:24,284 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:23:24,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:23:24,285 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:23:24,285 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:23:24,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:23:24,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:23:24,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:23:24,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:23:24,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:23:24,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:23:24,287 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:23:24,287 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe9d78f75108492828570ec5eb222efdf0cf36e1ec4bcab23f2d45d29dbfe193 [2021-12-15 17:23:24,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:23:24,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:23:24,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:23:24,522 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:23:24,524 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:23:24,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.ufo.BOUNDED-8.pals.c [2021-12-15 17:23:24,579 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/804cf0ad1/19f984fefe264205ad6840fae742698b/FLAG8bdaf9307 [2021-12-15 17:23:25,069 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:23:25,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.ufo.BOUNDED-8.pals.c [2021-12-15 17:23:25,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/804cf0ad1/19f984fefe264205ad6840fae742698b/FLAG8bdaf9307 [2021-12-15 17:23:25,590 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/804cf0ad1/19f984fefe264205ad6840fae742698b [2021-12-15 17:23:25,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:23:25,598 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:23:25,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:23:25,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:23:25,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:23:25,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:25,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14edfb37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25, skipping insertion in model container [2021-12-15 17:23:25,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:25,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:23:25,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:23:25,876 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.ufo.BOUNDED-8.pals.c[30996,31009] [2021-12-15 17:23:25,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:23:25,884 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:23:25,942 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.ufo.BOUNDED-8.pals.c[30996,31009] [2021-12-15 17:23:25,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:23:25,953 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:23:25,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25 WrapperNode [2021-12-15 17:23:25,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:23:25,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:23:25,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:23:25,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:23:25,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:25,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:26,050 INFO L137 Inliner]: procedures = 23, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 981 [2021-12-15 17:23:26,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:23:26,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:23:26,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:23:26,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:23:26,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:26,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:26,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:26,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:26,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:26,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:26,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:26,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:23:26,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:23:26,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:23:26,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:23:26,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (1/1) ... [2021-12-15 17:23:26,121 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:23:26,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:23:26,160 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 17:23:26,180 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 17:23:26,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:23:26,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:23:26,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:23:26,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:23:26,401 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:23:26,405 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:23:26,993 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:23:27,011 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:23:27,011 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 17:23:27,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:23:27 BoogieIcfgContainer [2021-12-15 17:23:27,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:23:27,014 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:23:27,014 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:23:27,016 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:23:27,017 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:23:27,017 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:23:25" (1/3) ... [2021-12-15 17:23:27,017 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b18b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:23:27, skipping insertion in model container [2021-12-15 17:23:27,018 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:23:27,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:23:25" (2/3) ... [2021-12-15 17:23:27,018 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b18b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:23:27, skipping insertion in model container [2021-12-15 17:23:27,018 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:23:27,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:23:27" (3/3) ... [2021-12-15 17:23:27,019 INFO L388 chiAutomizerObserver]: Analyzing ICFG pals_opt-floodmax.4.ufo.BOUNDED-8.pals.c [2021-12-15 17:23:27,064 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:23:27,064 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:23:27,064 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:23:27,064 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:23:27,065 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:23:27,065 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:23:27,065 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:23:27,065 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:23:27,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 323 states, 322 states have (on average 1.8043478260869565) internal successors, (581), 322 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:23:27,110 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 123 [2021-12-15 17:23:27,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:23:27,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:23:27,120 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:23:27,120 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 17:23:27,120 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:23:27,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 323 states, 322 states have (on average 1.8043478260869565) internal successors, (581), 322 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:23:27,138 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 123 [2021-12-15 17:23:27,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:23:27,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:23:27,141 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:23:27,141 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 17:23:27,147 INFO L791 eck$LassoCheckResult]: Stem: 305#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(41, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0;~newmax4~0 := 0; 218#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~nondet44#1, main_#t~nondet45#1, main_#t~nondet46#1, main_#t~nondet47#1, main_#t~nondet48#1, main_#t~nondet49#1, main_#t~nondet50#1, main_#t~nondet51#1, main_#t~nondet52#1, main_#t~nondet53#1, main_#t~nondet54#1, main_#t~nondet55#1, main_#t~nondet56#1, main_#t~nondet57#1, main_#t~nondet58#1, main_#t~nondet59#1, main_#t~ret60#1, main_#t~ret61#1, main_#t~post62#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; 34#L441true assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 253#L452true init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 104#L462true assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 153#L473true init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 285#L483true assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 256#L494true init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 257#L504true assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 60#L515true init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 3#L525true assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 248#L536true init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 54#L546true assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 321#L557true init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 69#L567true assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 225#L578true init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 115#L588true assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 242#L599true init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 101#L609true assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 77#L620true init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 107#L630true assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 220#L641true init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 303#L651true assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 227#L662true init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 141#L672true assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 260#L683true init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 309#L693true assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 239#L704true init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 180#L714true assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 14#L725true init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 315#L735true assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 114#L746true init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 97#L756true assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 290#L767true init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 36#L777true assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 163#L788true init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 224#L798true assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 311#L809true init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 228#L819true assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 286#L830true init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 135#L840true assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 262#L851true init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 205#L861true assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 264#L872true init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 217#L882true assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 102#L893true init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 282#L903true assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 99#L914true init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 268#L924true assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 90#L935true init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 130#L945true assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 230#L945-1true init_#res#1 := init_~tmp___23~0#1; 13#L1130true 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; 125#L21true assume !(0 == assume_abort_if_not_~cond#1); 195#L20true 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; 161#L1271-2true [2021-12-15 17:23:27,147 INFO L793 eck$LassoCheckResult]: Loop: 161#L1271-2true assume !!(main_~i2~0#1 < 8);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; 74#L114true assume !(0 != ~mode1~0 % 256); 277#L150true assume !(~r1~0 < 3); 181#L150-1true ~mode1~0 := 1; 61#L114-2true 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; 41#L178true assume !(0 != ~mode2~0 % 256); 314#L214true assume !(~r2~0 < 3); 105#L214-1true ~mode2~0 := 1; 183#L178-2true 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; 322#L242true assume !(0 != ~mode3~0 % 256); 169#L278true assume !(~r3~0 < 3); 129#L278-1true ~mode3~0 := 1; 236#L242-2true 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; 156#L306true assume !(0 != ~mode4~0 % 256); 53#L342true assume !(~r4~0 < 3); 18#L342-1true ~mode4~0 := 1; 64#L306-2true 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; 171#L1138true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1#1 := 0; 199#L1138-1true check_#res#1 := check_~tmp~1#1; 139#L1190true 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; 201#L1314true assume !(0 == assert_~arg#1 % 256); 289#L1309true assume { :end_inline_assert } true;main_#t~post62#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post62#1;havoc main_#t~post62#1; 161#L1271-2true [2021-12-15 17:23:27,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:27,151 INFO L85 PathProgramCache]: Analyzing trace with hash 2064134942, now seen corresponding path program 1 times [2021-12-15 17:23:27,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:27,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180086629] [2021-12-15 17:23:27,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:27,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:27,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:23:27,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:27,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180086629] [2021-12-15 17:23:27,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180086629] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:27,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:27,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:23:27,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510244102] [2021-12-15 17:23:27,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:27,347 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:23:27,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:27,348 INFO L85 PathProgramCache]: Analyzing trace with hash -340497803, now seen corresponding path program 1 times [2021-12-15 17:23:27,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:27,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872488605] [2021-12-15 17:23:27,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:27,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:27,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:23:27,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:27,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872488605] [2021-12-15 17:23:27,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872488605] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:27,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:27,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:23:27,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697708600] [2021-12-15 17:23:27,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:27,439 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:23:27,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:23:27,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 17:23:27,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 17:23:27,471 INFO L87 Difference]: Start difference. First operand has 323 states, 322 states have (on average 1.8043478260869565) internal successors, (581), 322 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:23:27,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:23:27,541 INFO L93 Difference]: Finished difference Result 327 states and 581 transitions. [2021-12-15 17:23:27,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 17:23:27,546 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 327 states and 581 transitions. [2021-12-15 17:23:27,560 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 122 [2021-12-15 17:23:27,565 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 327 states to 318 states and 564 transitions. [2021-12-15 17:23:27,565 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 318 [2021-12-15 17:23:27,567 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 318 [2021-12-15 17:23:27,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 318 states and 564 transitions. [2021-12-15 17:23:27,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:23:27,569 INFO L681 BuchiCegarLoop]: Abstraction has 318 states and 564 transitions. [2021-12-15 17:23:27,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states and 564 transitions. [2021-12-15 17:23:27,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2021-12-15 17:23:27,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 318 states have (on average 1.7735849056603774) internal successors, (564), 317 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:23:27,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 564 transitions. [2021-12-15 17:23:27,625 INFO L704 BuchiCegarLoop]: Abstraction has 318 states and 564 transitions. [2021-12-15 17:23:27,625 INFO L587 BuchiCegarLoop]: Abstraction has 318 states and 564 transitions. [2021-12-15 17:23:27,625 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:23:27,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 318 states and 564 transitions. [2021-12-15 17:23:27,632 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 122 [2021-12-15 17:23:27,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:23:27,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:23:27,639 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:23:27,642 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:23:27,642 INFO L791 eck$LassoCheckResult]: Stem: 984#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(41, 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; 965#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_#t~post62#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; 743#L441 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 744#L452 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 858#L462 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 825#L473 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 911#L483 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 950#L494 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 978#L504 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 765#L515 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 671#L525 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 672#L536 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 780#L546 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 781#L557 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 805#L567 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 806#L578 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 870#L588 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 724#L599 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 856#L609 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 788#L620 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 823#L630 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 763#L641 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 967#L651 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 726#L662 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 900#L672 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 901#L683 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 979#L693 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 714#L704 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 939#L714 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 700#L725 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 701#L735 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 675#L746 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 849#L756 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 691#L767 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 746#L777 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 747#L788 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 921#L798 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 889#L809 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 970#L819 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 934#L830 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 893#L840 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 848#L851 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 958#L861 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 794#L872 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 964#L882 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 771#L893 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 857#L903 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 852#L914 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 853#L924 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 838#L935 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 839#L945 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 682#L945-1 init_#res#1 := init_~tmp___23~0#1; 693#L1130 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; 694#L21 assume !(0 == assume_abort_if_not_~cond#1); 882#L20 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; 920#L1271-2 [2021-12-15 17:23:27,643 INFO L793 eck$LassoCheckResult]: Loop: 920#L1271-2 assume !!(main_~i2~0#1 < 8);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#L114 assume !(0 != ~mode1~0 % 256); 815#L150 assume !(~r1~0 < 3); 810#L150-1 ~mode1~0 := 1; 792#L114-2 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; 754#L178 assume !(0 != ~mode2~0 % 256); 755#L214 assume !(~r2~0 < 3); 711#L214-1 ~mode2~0 := 1; 860#L178-2 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; 941#L242 assume !(0 != ~mode3~0 % 256); 927#L278 assume !(~r3~0 < 3); 829#L278-1 ~mode3~0 := 1; 881#L242-2 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; 914#L306 assume !(0 != ~mode4~0 % 256); 776#L342 assume !(~r4~0 < 3); 704#L342-1 ~mode4~0 := 1; 705#L306-2 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; 797#L1138 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 929#L1139 assume ~st1~0 + ~nl1~0 <= 1; 966#L1140 assume ~st2~0 + ~nl2~0 <= 1; 931#L1141 assume ~st3~0 + ~nl3~0 <= 1; 932#L1142 assume ~st4~0 + ~nl4~0 <= 1; 861#L1143 assume ~r1~0 >= 3; 732#L1147 assume ~r1~0 < 3; 733#L1152 assume ~r1~0 >= 3; 906#L1157 assume ~r1~0 < 3;check_~tmp~1#1 := 1; 908#L1138-1 check_#res#1 := check_~tmp~1#1; 897#L1190 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; 898#L1314 assume !(0 == assert_~arg#1 % 256); 953#L1309 assume { :end_inline_assert } true;main_#t~post62#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post62#1;havoc main_#t~post62#1; 920#L1271-2 [2021-12-15 17:23:27,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:27,644 INFO L85 PathProgramCache]: Analyzing trace with hash 2064134942, now seen corresponding path program 2 times [2021-12-15 17:23:27,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:27,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254799230] [2021-12-15 17:23:27,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:27,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:27,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:23:27,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:27,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254799230] [2021-12-15 17:23:27,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254799230] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:27,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:27,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:23:27,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263797416] [2021-12-15 17:23:27,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:27,751 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:23:27,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:27,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1528981060, now seen corresponding path program 1 times [2021-12-15 17:23:27,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:27,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706385385] [2021-12-15 17:23:27,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:27,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:27,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:23:27,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:27,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706385385] [2021-12-15 17:23:27,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706385385] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:27,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:27,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:23:27,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663000962] [2021-12-15 17:23:27,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:27,809 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:23:27,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:23:27,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:23:27,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:23:27,809 INFO L87 Difference]: Start difference. First operand 318 states and 564 transitions. cyclomatic complexity: 247 Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:23:27,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:23:27,854 INFO L93 Difference]: Finished difference Result 415 states and 719 transitions. [2021-12-15 17:23:27,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:23:27,855 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 415 states and 719 transitions. [2021-12-15 17:23:27,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 219 [2021-12-15 17:23:27,862 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 415 states to 415 states and 719 transitions. [2021-12-15 17:23:27,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 415 [2021-12-15 17:23:27,866 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 415 [2021-12-15 17:23:27,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 415 states and 719 transitions. [2021-12-15 17:23:27,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:23:27,871 INFO L681 BuchiCegarLoop]: Abstraction has 415 states and 719 transitions. [2021-12-15 17:23:27,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states and 719 transitions. [2021-12-15 17:23:27,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2021-12-15 17:23:27,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 415 states have (on average 1.7325301204819277) internal successors, (719), 414 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:23:27,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 719 transitions. [2021-12-15 17:23:27,882 INFO L704 BuchiCegarLoop]: Abstraction has 415 states and 719 transitions. [2021-12-15 17:23:27,882 INFO L587 BuchiCegarLoop]: Abstraction has 415 states and 719 transitions. [2021-12-15 17:23:27,882 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-15 17:23:27,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 415 states and 719 transitions. [2021-12-15 17:23:27,884 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 219 [2021-12-15 17:23:27,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:23:27,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:23:27,888 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:23:27,891 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:23:27,891 INFO L791 eck$LassoCheckResult]: Stem: 1747#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(41, 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; 1717#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_#t~post62#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; 1484#L441 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 1485#L452 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 1601#L462 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 1568#L473 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 1656#L483 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 1700#L494 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 1731#L504 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 1508#L515 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 1416#L525 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 1417#L536 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 1522#L546 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 1523#L557 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 1547#L567 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 1548#L578 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 1613#L588 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 1464#L599 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 1597#L609 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 1527#L620 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 1566#L630 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 1499#L641 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 1718#L651 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 1466#L662 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 1646#L672 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 1647#L683 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 1732#L693 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 1456#L704 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 1688#L714 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 1437#L725 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 1438#L735 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 1411#L746 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 1592#L756 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 1430#L767 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 1487#L777 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 1488#L788 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 1669#L798 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 1634#L809 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 1722#L819 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 1683#L830 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 1638#L840 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 1591#L851 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 1711#L861 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 1536#L872 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 1716#L882 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 1512#L893 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 1598#L903 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 1595#L914 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 1596#L924 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 1581#L935 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 1582#L945 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 1423#L945-1 init_#res#1 := init_~tmp___23~0#1; 1435#L1130 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; 1436#L21 assume !(0 == assume_abort_if_not_~cond#1); 1624#L20 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; 1701#L1271-2 [2021-12-15 17:23:27,893 INFO L793 eck$LassoCheckResult]: Loop: 1701#L1271-2 assume !!(main_~i2~0#1 < 8);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; 1557#L114 assume !(0 != ~mode1~0 % 256); 1558#L150 assume ~r1~0 < 3; 1606#L151 assume !(0 != ~ep12~0 % 256); 1506#L151-1 assume !(0 != ~ep13~0 % 256); 1433#L156 assume !(0 != ~ep14~0 % 256); 1552#L150-1 ~mode1~0 := 1; 1792#L114-2 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; 1790#L178 assume !(0 != ~mode2~0 % 256); 1788#L214 assume !(~r2~0 < 3); 1783#L214-1 ~mode2~0 := 1; 1781#L178-2 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; 1780#L242 assume !(0 != ~mode3~0 % 256); 1675#L278 assume !(~r3~0 < 3); 1572#L278-1 ~mode3~0 := 1; 1769#L242-2 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; 1767#L306 assume !(0 != ~mode4~0 % 256); 1764#L342 assume !(~r4~0 < 3); 1759#L342-1 ~mode4~0 := 1; 1757#L306-2 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; 1756#L1138 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 1754#L1139 assume ~st1~0 + ~nl1~0 <= 1; 1753#L1140 assume ~st2~0 + ~nl2~0 <= 1; 1752#L1141 assume ~st3~0 + ~nl3~0 <= 1; 1736#L1142 assume ~st4~0 + ~nl4~0 <= 1; 1737#L1143 assume !(~r1~0 >= 3); 1665#L1146 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0; 1666#L1147 assume ~r1~0 < 3; 1751#L1152 assume !(~r1~0 >= 3); 1742#L1156 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0 + ~nl4~0; 1743#L1157 assume ~r1~0 < 3;check_~tmp~1#1 := 1; 1755#L1138-1 check_#res#1 := check_~tmp~1#1; 1824#L1190 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; 1823#L1314 assume !(0 == assert_~arg#1 % 256); 1822#L1309 assume { :end_inline_assert } true;main_#t~post62#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post62#1;havoc main_#t~post62#1; 1701#L1271-2 [2021-12-15 17:23:27,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:27,898 INFO L85 PathProgramCache]: Analyzing trace with hash 2064134942, now seen corresponding path program 3 times [2021-12-15 17:23:27,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:27,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874935890] [2021-12-15 17:23:27,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:27,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:23:27,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:23:27,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:23:27,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874935890] [2021-12-15 17:23:27,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874935890] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:23:27,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:23:27,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:23:27,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743978134] [2021-12-15 17:23:27,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:23:27,983 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:23:27,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:23:27,984 INFO L85 PathProgramCache]: Analyzing trace with hash -110224707, now seen corresponding path program 1 times [2021-12-15 17:23:27,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:23:27,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579549788] [2021-12-15 17:23:27,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:23:27,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:23:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:23:27,993 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:23:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:23:28,021 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:23:28,885 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:548) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLoopTermination(LassoCheck.java:944) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:818) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 17:23:28,889 INFO L158 Benchmark]: Toolchain (without parser) took 3290.07ms. Allocated memory was 81.8MB in the beginning and 165.7MB in the end (delta: 83.9MB). Free memory was 60.0MB in the beginning and 98.4MB in the end (delta: -38.4MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. [2021-12-15 17:23:28,890 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 81.8MB. Free memory was 58.3MB in the beginning and 58.3MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:23:28,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.00ms. Allocated memory is still 81.8MB. Free memory was 59.8MB in the beginning and 39.5MB in the end (delta: 20.3MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2021-12-15 17:23:28,896 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.69ms. Allocated memory is still 81.8MB. Free memory was 39.5MB in the beginning and 59.0MB in the end (delta: -19.5MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2021-12-15 17:23:28,896 INFO L158 Benchmark]: Boogie Preprocessor took 35.24ms. Allocated memory is still 81.8MB. Free memory was 59.0MB in the beginning and 54.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:23:28,897 INFO L158 Benchmark]: RCFGBuilder took 925.88ms. Allocated memory was 81.8MB in the beginning and 113.2MB in the end (delta: 31.5MB). Free memory was 54.5MB in the beginning and 47.3MB in the end (delta: 7.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2021-12-15 17:23:28,898 INFO L158 Benchmark]: BuchiAutomizer took 1873.90ms. Allocated memory was 113.2MB in the beginning and 165.7MB in the end (delta: 52.4MB). Free memory was 46.7MB in the beginning and 98.4MB in the end (delta: -51.7MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2021-12-15 17:23:28,903 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 81.8MB. Free memory was 58.3MB in the beginning and 58.3MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.00ms. Allocated memory is still 81.8MB. Free memory was 59.8MB in the beginning and 39.5MB in the end (delta: 20.3MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.69ms. Allocated memory is still 81.8MB. Free memory was 39.5MB in the beginning and 59.0MB in the end (delta: -19.5MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.24ms. Allocated memory is still 81.8MB. Free memory was 59.0MB in the beginning and 54.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 925.88ms. Allocated memory was 81.8MB in the beginning and 113.2MB in the end (delta: 31.5MB). Free memory was 54.5MB in the beginning and 47.3MB in the end (delta: 7.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 1873.90ms. Allocated memory was 113.2MB in the beginning and 165.7MB in the end (delta: 52.4MB). Free memory was 46.7MB in the beginning and 98.4MB in the end (delta: -51.7MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 17:23:28,942 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