./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/systemc/toy.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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/systemc/toy.cil.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 1ba07ae5f9ba9742e473cf2ed151649cad165d7c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 16:31:32,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:31:32,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:31:32,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:31:32,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:31:32,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:31:32,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:31:32,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:31:32,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:31:32,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:31:32,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:31:32,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:31:32,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:31:32,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:31:32,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:31:32,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:31:32,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:31:32,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:31:32,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:31:32,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:31:32,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:31:32,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:31:32,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:31:32,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:31:32,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:31:32,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:31:32,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:31:32,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:31:32,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:31:32,304 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:31:32,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:31:32,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:31:32,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:31:32,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:31:32,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:31:32,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:31:32,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:31:32,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:31:32,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:31:32,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:31:32,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:31:32,311 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:31:32,331 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:31:32,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:31:32,332 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:31:32,332 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:31:32,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:31:32,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:31:32,334 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:31:32,334 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:31:32,334 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:31:32,334 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:31:32,334 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:31:32,335 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:31:32,335 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:31:32,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:31:32,335 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:31:32,335 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:31:32,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:31:32,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:31:32,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:31:32,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:31:32,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:31:32,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:31:32,337 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:31:32,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:31:32,337 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:31:32,337 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:31:32,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:31:32,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:31:32,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:31:32,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:31:32,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:31:32,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:31:32,339 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:31:32,339 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ba07ae5f9ba9742e473cf2ed151649cad165d7c [2021-08-27 16:31:32,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:31:32,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:31:32,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:31:32,669 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:31:32,670 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:31:32,671 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/toy.cil.c [2021-08-27 16:31:32,720 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/599f8ffc2/272fdc82842d49c6ae66c4e8806f823e/FLAGc55925fbc [2021-08-27 16:31:33,197 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:31:33,207 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/toy.cil.c [2021-08-27 16:31:33,219 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/599f8ffc2/272fdc82842d49c6ae66c4e8806f823e/FLAGc55925fbc [2021-08-27 16:31:33,716 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/599f8ffc2/272fdc82842d49c6ae66c4e8806f823e [2021-08-27 16:31:33,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:31:33,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:31:33,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:31:33,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:31:33,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:31:33,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:31:33" (1/1) ... [2021-08-27 16:31:33,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f69adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:31:33, skipping insertion in model container [2021-08-27 16:31:33,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:31:33" (1/1) ... [2021-08-27 16:31:33,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:31:33,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:31:33,877 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/toy.cil.c[392,405] [2021-08-27 16:31:33,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:31:33,981 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:31:33,991 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/toy.cil.c[392,405] [2021-08-27 16:31:34,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:31:34,040 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:31:34,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:31:34 WrapperNode [2021-08-27 16:31:34,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:31:34,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:31:34,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:31:34,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:31:34,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:31:34" (1/1) ... [2021-08-27 16:31:34,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:31:34" (1/1) ... [2021-08-27 16:31:34,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:31:34,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:31:34,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:31:34,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:31:34,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:31:34" (1/1) ... [2021-08-27 16:31:34,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:31:34" (1/1) ... [2021-08-27 16:31:34,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:31:34" (1/1) ... [2021-08-27 16:31:34,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:31:34" (1/1) ... [2021-08-27 16:31:34,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:31:34" (1/1) ... [2021-08-27 16:31:34,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:31:34" (1/1) ... [2021-08-27 16:31:34,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:31:34" (1/1) ... [2021-08-27 16:31:34,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:31:34,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:31:34,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:31:34,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:31:34,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:31:34" (1/1) ... [2021-08-27 16:31:34,161 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:34,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:34,182 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) [2021-08-27 16:31:34,207 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 [2021-08-27 16:31:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:31:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:31:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:31:34,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:31:34,836 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:31:34,836 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-08-27 16:31:34,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:31:34 BoogieIcfgContainer [2021-08-27 16:31:34,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:31:34,839 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:31:34,839 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:31:34,842 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:31:34,843 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:31:34,843 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:31:33" (1/3) ... [2021-08-27 16:31:34,844 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46303db9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:31:34, skipping insertion in model container [2021-08-27 16:31:34,844 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:31:34,844 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:31:34" (2/3) ... [2021-08-27 16:31:34,844 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46303db9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:31:34, skipping insertion in model container [2021-08-27 16:31:34,845 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:31:34,845 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:31:34" (3/3) ... [2021-08-27 16:31:34,846 INFO L389 chiAutomizerObserver]: Analyzing ICFG toy.cil.c [2021-08-27 16:31:34,895 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:31:34,895 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:31:34,896 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:31:34,896 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:31:34,896 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:31:34,896 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:31:34,896 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:31:34,896 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:31:34,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 125 states, 124 states have (on average 1.8709677419354838) internal successors, (232), 124 states have internal predecessors, (232), 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) [2021-08-27 16:31:34,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 90 [2021-08-27 16:31:34,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:31:34,963 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:31:34,972 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] [2021-08-27 16:31:34,972 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] [2021-08-27 16:31:34,972 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:31:34,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 125 states, 124 states have (on average 1.8709677419354838) internal successors, (232), 124 states have internal predecessors, (232), 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) [2021-08-27 16:31:34,982 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 90 [2021-08-27 16:31:34,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:31:34,983 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:31:34,984 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] [2021-08-27 16:31:34,984 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] [2021-08-27 16:31:34,989 INFO L791 eck$LassoCheckResult]: Stem: 115#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 38#L-1true havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 73#L400true assume !(1 == ~c_req_up~0); 103#L400-2true assume !(1 == ~wl_i~0);~wl_st~0 := 2; 34#L411-1true assume !(1 == ~c1_i~0);~c1_st~0 := 2; 16#L416-1true assume 1 == ~c2_i~0;~c2_st~0 := 0; 89#L421-1true assume !(1 == ~wb_i~0);~wb_st~0 := 2; 81#L426-1true assume !(1 == ~r_i~0);~r_st~0 := 2; 6#L431-1true assume !(0 == ~e_f~0); 26#L436-1true assume !(0 == ~e_g~0); 122#L441-1true assume !(0 == ~e_e~0); 74#L446-1true assume !(0 == ~e_c~0); 67#L451-1true assume !(0 == ~e_wl~0); 92#L456-1true assume !(1 == ~wl_pc~0); 117#L468true assume !(2 == ~wl_pc~0); 14#L469true assume !(1 == ~c1_pc~0); 63#L479true assume !(1 == ~c2_pc~0); 62#L488true assume !(1 == ~wb_pc~0); 119#L497true assume !(1 == ~e_c~0); 70#L506-1true assume !(1 == ~e_e~0); 59#L511-1true assume !(1 == ~e_f~0); 39#L516-1true assume !(1 == ~e_g~0); 79#L521-1true assume !(1 == ~e_c~0); 78#L526-1true assume !(1 == ~e_wl~0); 116#L668-1true [2021-08-27 16:31:34,990 INFO L793 eck$LassoCheckResult]: Loop: 116#L668-1true assume !false; 106#L538true start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 113#L373true assume false; 18#L389true start_simulation_~kernel_st~0 := 2; 105#L544true assume !(1 == ~c_req_up~0); 5#L544-2true start_simulation_~kernel_st~0 := 3; 118#L556true assume 0 == ~e_f~0;~e_f~0 := 1; 23#L556-2true assume 0 == ~e_g~0;~e_g~0 := 1; 91#L561-1true assume !(0 == ~e_e~0); 57#L566-1true assume 0 == ~e_c~0;~e_c~0 := 1; 50#L571-1true assume 0 == ~e_wl~0;~e_wl~0 := 1; 17#L576-1true assume 1 == ~wl_pc~0; 124#L582true assume 1 == ~e_wl~0;~wl_st~0 := 0; 13#L589true assume !(1 == ~c1_pc~0); 52#L599true assume !(1 == ~c2_pc~0); 68#L608true assume !(1 == ~wb_pc~0); 58#L617true assume 1 == ~e_c~0;~r_st~0 := 0; 49#L626-1true assume 1 == ~e_e~0;~e_e~0 := 2; 53#L631-1true assume 1 == ~e_f~0;~e_f~0 := 2; 24#L636-1true assume !(1 == ~e_g~0); 80#L641-1true assume 1 == ~e_c~0;~e_c~0 := 2; 27#L646-1true assume 1 == ~e_wl~0;~e_wl~0 := 2; 65#L651-1true assume 0 == ~wl_st~0; 116#L668-1true [2021-08-27 16:31:34,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:34,994 INFO L82 PathProgramCache]: Analyzing trace with hash -2133486251, now seen corresponding path program 1 times [2021-08-27 16:31:35,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:35,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631779848] [2021-08-27 16:31:35,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:35,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:35,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:35,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:35,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631779848] [2021-08-27 16:31:35,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631779848] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:35,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:35,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:31:35,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406553780] [2021-08-27 16:31:35,162 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 16:31:35,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:35,165 INFO L82 PathProgramCache]: Analyzing trace with hash 359392569, now seen corresponding path program 1 times [2021-08-27 16:31:35,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:35,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099406964] [2021-08-27 16:31:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:35,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:35,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:35,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:35,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099406964] [2021-08-27 16:31:35,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099406964] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:35,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:35,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 16:31:35,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009117403] [2021-08-27 16:31:35,220 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:31:35,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:31:35,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-27 16:31:35,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-27 16:31:35,248 INFO L87 Difference]: Start difference. First operand has 125 states, 124 states have (on average 1.8709677419354838) internal successors, (232), 124 states have internal predecessors, (232), 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 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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) [2021-08-27 16:31:35,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:31:35,263 INFO L93 Difference]: Finished difference Result 125 states and 219 transitions. [2021-08-27 16:31:35,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 16:31:35,265 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 219 transitions. [2021-08-27 16:31:35,276 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2021-08-27 16:31:35,279 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 120 states and 214 transitions. [2021-08-27 16:31:35,280 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2021-08-27 16:31:35,281 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2021-08-27 16:31:35,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 214 transitions. [2021-08-27 16:31:35,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:31:35,282 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 214 transitions. [2021-08-27 16:31:35,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 214 transitions. [2021-08-27 16:31:35,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-08-27 16:31:35,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 1.7833333333333334) internal successors, (214), 119 states have internal predecessors, (214), 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) [2021-08-27 16:31:35,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 214 transitions. [2021-08-27 16:31:35,310 INFO L704 BuchiCegarLoop]: Abstraction has 120 states and 214 transitions. [2021-08-27 16:31:35,310 INFO L587 BuchiCegarLoop]: Abstraction has 120 states and 214 transitions. [2021-08-27 16:31:35,310 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:31:35,310 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 214 transitions. [2021-08-27 16:31:35,312 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2021-08-27 16:31:35,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:31:35,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:31:35,313 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] [2021-08-27 16:31:35,313 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] [2021-08-27 16:31:35,314 INFO L791 eck$LassoCheckResult]: Stem: 377#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 329#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 330#L400 assume !(1 == ~c_req_up~0); 363#L400-2 assume !(1 == ~wl_i~0);~wl_st~0 := 2; 326#L411-1 assume !(1 == ~c1_i~0);~c1_st~0 := 2; 289#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 290#L421-1 assume !(1 == ~wb_i~0);~wb_st~0 := 2; 369#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 263#L431-1 assume !(0 == ~e_f~0); 264#L436-1 assume !(0 == ~e_g~0); 312#L441-1 assume !(0 == ~e_e~0); 364#L446-1 assume !(0 == ~e_c~0); 359#L451-1 assume !(0 == ~e_wl~0); 360#L456-1 assume !(1 == ~wl_pc~0); 367#L468 assume !(2 == ~wl_pc~0); 283#L469 assume !(1 == ~c1_pc~0); 285#L479 assume !(1 == ~c2_pc~0); 355#L488 assume !(1 == ~wb_pc~0); 356#L497 assume !(1 == ~e_c~0); 362#L506-1 assume !(1 == ~e_e~0); 353#L511-1 assume !(1 == ~e_f~0); 331#L516-1 assume !(1 == ~e_g~0); 332#L521-1 assume !(1 == ~e_c~0); 368#L526-1 assume !(1 == ~e_wl~0); 316#L668-1 [2021-08-27 16:31:35,314 INFO L793 eck$LassoCheckResult]: Loop: 316#L668-1 assume !false; 375#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 288#L373 assume !false; 365#L291 assume !(0 == ~wl_st~0); 268#L295 assume !(0 == ~c1_st~0); 270#L298 assume !(0 == ~c2_st~0); 322#L301 assume !(0 == ~wb_st~0); 370#L304 assume !(0 == ~r_st~0); 297#L389 start_simulation_~kernel_st~0 := 2; 298#L544 assume !(1 == ~c_req_up~0); 261#L544-2 start_simulation_~kernel_st~0 := 3; 262#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 306#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 307#L561-1 assume !(0 == ~e_e~0); 352#L566-1 assume 0 == ~e_c~0;~e_c~0 := 1; 346#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 291#L576-1 assume 1 == ~wl_pc~0; 292#L582 assume 1 == ~e_wl~0;~wl_st~0 := 0; 280#L589 assume !(1 == ~c1_pc~0); 281#L599 assume !(1 == ~c2_pc~0); 348#L608 assume !(1 == ~wb_pc~0); 338#L617 assume 1 == ~e_c~0;~r_st~0 := 0; 344#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 345#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 308#L636-1 assume !(1 == ~e_g~0); 309#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 313#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 314#L651-1 assume 0 == ~wl_st~0; 316#L668-1 [2021-08-27 16:31:35,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:35,315 INFO L82 PathProgramCache]: Analyzing trace with hash -2133486251, now seen corresponding path program 2 times [2021-08-27 16:31:35,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:35,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790371098] [2021-08-27 16:31:35,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:35,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:35,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:35,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:35,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790371098] [2021-08-27 16:31:35,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790371098] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:35,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:35,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:31:35,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325911064] [2021-08-27 16:31:35,365 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 16:31:35,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:35,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1806372813, now seen corresponding path program 1 times [2021-08-27 16:31:35,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:35,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411036231] [2021-08-27 16:31:35,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:35,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:35,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:35,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:35,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411036231] [2021-08-27 16:31:35,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411036231] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:35,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:35,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:31:35,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936344264] [2021-08-27 16:31:35,395 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:31:35,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:31:35,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:31:35,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:31:35,396 INFO L87 Difference]: Start difference. First operand 120 states and 214 transitions. cyclomatic complexity: 95 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-08-27 16:31:35,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:31:35,412 INFO L93 Difference]: Finished difference Result 120 states and 213 transitions. [2021-08-27 16:31:35,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:31:35,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 213 transitions. [2021-08-27 16:31:35,415 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2021-08-27 16:31:35,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 120 states and 213 transitions. [2021-08-27 16:31:35,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2021-08-27 16:31:35,417 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2021-08-27 16:31:35,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 213 transitions. [2021-08-27 16:31:35,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:31:35,418 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 213 transitions. [2021-08-27 16:31:35,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 213 transitions. [2021-08-27 16:31:35,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-08-27 16:31:35,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 1.775) internal successors, (213), 119 states have internal predecessors, (213), 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) [2021-08-27 16:31:35,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 213 transitions. [2021-08-27 16:31:35,424 INFO L704 BuchiCegarLoop]: Abstraction has 120 states and 213 transitions. [2021-08-27 16:31:35,424 INFO L587 BuchiCegarLoop]: Abstraction has 120 states and 213 transitions. [2021-08-27 16:31:35,424 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 16:31:35,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 213 transitions. [2021-08-27 16:31:35,425 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2021-08-27 16:31:35,426 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:31:35,426 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:31:35,427 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] [2021-08-27 16:31:35,427 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] [2021-08-27 16:31:35,427 INFO L791 eck$LassoCheckResult]: Stem: 624#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 576#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 577#L400 assume !(1 == ~c_req_up~0); 610#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 573#L411-1 assume !(1 == ~c1_i~0);~c1_st~0 := 2; 536#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 537#L421-1 assume !(1 == ~wb_i~0);~wb_st~0 := 2; 616#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 510#L431-1 assume !(0 == ~e_f~0); 511#L436-1 assume !(0 == ~e_g~0); 559#L441-1 assume !(0 == ~e_e~0); 611#L446-1 assume !(0 == ~e_c~0); 606#L451-1 assume !(0 == ~e_wl~0); 607#L456-1 assume !(1 == ~wl_pc~0); 614#L468 assume !(2 == ~wl_pc~0); 530#L469 assume !(1 == ~c1_pc~0); 532#L479 assume !(1 == ~c2_pc~0); 602#L488 assume !(1 == ~wb_pc~0); 603#L497 assume !(1 == ~e_c~0); 609#L506-1 assume !(1 == ~e_e~0); 600#L511-1 assume !(1 == ~e_f~0); 578#L516-1 assume !(1 == ~e_g~0); 579#L521-1 assume !(1 == ~e_c~0); 615#L526-1 assume !(1 == ~e_wl~0); 563#L668-1 [2021-08-27 16:31:35,427 INFO L793 eck$LassoCheckResult]: Loop: 563#L668-1 assume !false; 622#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 535#L373 assume !false; 612#L291 assume !(0 == ~wl_st~0); 515#L295 assume !(0 == ~c1_st~0); 517#L298 assume !(0 == ~c2_st~0); 569#L301 assume !(0 == ~wb_st~0); 617#L304 assume !(0 == ~r_st~0); 544#L389 start_simulation_~kernel_st~0 := 2; 545#L544 assume !(1 == ~c_req_up~0); 508#L544-2 start_simulation_~kernel_st~0 := 3; 509#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 553#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 554#L561-1 assume !(0 == ~e_e~0); 599#L566-1 assume 0 == ~e_c~0;~e_c~0 := 1; 593#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 538#L576-1 assume 1 == ~wl_pc~0; 539#L582 assume 1 == ~e_wl~0;~wl_st~0 := 0; 527#L589 assume !(1 == ~c1_pc~0); 528#L599 assume !(1 == ~c2_pc~0); 595#L608 assume !(1 == ~wb_pc~0); 585#L617 assume 1 == ~e_c~0;~r_st~0 := 0; 591#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 592#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 555#L636-1 assume !(1 == ~e_g~0); 556#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 560#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 561#L651-1 assume 0 == ~wl_st~0; 563#L668-1 [2021-08-27 16:31:35,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:35,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1738779219, now seen corresponding path program 1 times [2021-08-27 16:31:35,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:35,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988183880] [2021-08-27 16:31:35,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:35,429 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:35,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:35,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:35,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988183880] [2021-08-27 16:31:35,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988183880] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:35,460 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:35,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:31:35,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390504538] [2021-08-27 16:31:35,460 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 16:31:35,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:35,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1806372813, now seen corresponding path program 2 times [2021-08-27 16:31:35,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:35,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598695043] [2021-08-27 16:31:35,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:35,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:35,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:35,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:35,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598695043] [2021-08-27 16:31:35,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598695043] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:35,502 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:35,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:31:35,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280992627] [2021-08-27 16:31:35,502 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:31:35,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:31:35,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:31:35,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:31:35,503 INFO L87 Difference]: Start difference. First operand 120 states and 213 transitions. cyclomatic complexity: 94 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-08-27 16:31:35,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:31:35,518 INFO L93 Difference]: Finished difference Result 120 states and 212 transitions. [2021-08-27 16:31:35,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:31:35,518 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 212 transitions. [2021-08-27 16:31:35,520 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2021-08-27 16:31:35,521 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 120 states and 212 transitions. [2021-08-27 16:31:35,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2021-08-27 16:31:35,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2021-08-27 16:31:35,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 212 transitions. [2021-08-27 16:31:35,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:31:35,522 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 212 transitions. [2021-08-27 16:31:35,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 212 transitions. [2021-08-27 16:31:35,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-08-27 16:31:35,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 1.7666666666666666) internal successors, (212), 119 states have internal predecessors, (212), 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) [2021-08-27 16:31:35,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 212 transitions. [2021-08-27 16:31:35,528 INFO L704 BuchiCegarLoop]: Abstraction has 120 states and 212 transitions. [2021-08-27 16:31:35,528 INFO L587 BuchiCegarLoop]: Abstraction has 120 states and 212 transitions. [2021-08-27 16:31:35,528 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 16:31:35,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 212 transitions. [2021-08-27 16:31:35,529 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2021-08-27 16:31:35,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:31:35,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:31:35,531 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] [2021-08-27 16:31:35,531 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] [2021-08-27 16:31:35,531 INFO L791 eck$LassoCheckResult]: Stem: 871#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 823#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 824#L400 assume !(1 == ~c_req_up~0); 857#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 820#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 783#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 784#L421-1 assume !(1 == ~wb_i~0);~wb_st~0 := 2; 863#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 757#L431-1 assume !(0 == ~e_f~0); 758#L436-1 assume !(0 == ~e_g~0); 806#L441-1 assume !(0 == ~e_e~0); 858#L446-1 assume !(0 == ~e_c~0); 853#L451-1 assume !(0 == ~e_wl~0); 854#L456-1 assume !(1 == ~wl_pc~0); 861#L468 assume !(2 == ~wl_pc~0); 777#L469 assume !(1 == ~c1_pc~0); 779#L479 assume !(1 == ~c2_pc~0); 849#L488 assume !(1 == ~wb_pc~0); 850#L497 assume !(1 == ~e_c~0); 856#L506-1 assume !(1 == ~e_e~0); 847#L511-1 assume !(1 == ~e_f~0); 825#L516-1 assume !(1 == ~e_g~0); 826#L521-1 assume !(1 == ~e_c~0); 862#L526-1 assume !(1 == ~e_wl~0); 810#L668-1 [2021-08-27 16:31:35,531 INFO L793 eck$LassoCheckResult]: Loop: 810#L668-1 assume !false; 869#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 782#L373 assume !false; 859#L291 assume !(0 == ~wl_st~0); 762#L295 assume !(0 == ~c1_st~0); 764#L298 assume !(0 == ~c2_st~0); 816#L301 assume !(0 == ~wb_st~0); 864#L304 assume !(0 == ~r_st~0); 791#L389 start_simulation_~kernel_st~0 := 2; 792#L544 assume !(1 == ~c_req_up~0); 755#L544-2 start_simulation_~kernel_st~0 := 3; 756#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 800#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 801#L561-1 assume !(0 == ~e_e~0); 846#L566-1 assume 0 == ~e_c~0;~e_c~0 := 1; 840#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 785#L576-1 assume 1 == ~wl_pc~0; 786#L582 assume 1 == ~e_wl~0;~wl_st~0 := 0; 774#L589 assume !(1 == ~c1_pc~0); 775#L599 assume !(1 == ~c2_pc~0); 842#L608 assume !(1 == ~wb_pc~0); 832#L617 assume 1 == ~e_c~0;~r_st~0 := 0; 838#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 839#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 802#L636-1 assume !(1 == ~e_g~0); 803#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 807#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 808#L651-1 assume 0 == ~wl_st~0; 810#L668-1 [2021-08-27 16:31:35,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:35,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1738539627, now seen corresponding path program 1 times [2021-08-27 16:31:35,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:35,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606781853] [2021-08-27 16:31:35,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:35,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:35,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:35,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:35,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606781853] [2021-08-27 16:31:35,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606781853] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:35,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:35,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:31:35,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227668007] [2021-08-27 16:31:35,562 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 16:31:35,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:35,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1806372813, now seen corresponding path program 3 times [2021-08-27 16:31:35,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:35,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192844015] [2021-08-27 16:31:35,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:35,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:35,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:35,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:35,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192844015] [2021-08-27 16:31:35,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192844015] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:35,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:35,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:31:35,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444133127] [2021-08-27 16:31:35,587 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:31:35,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:31:35,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:31:35,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:31:35,588 INFO L87 Difference]: Start difference. First operand 120 states and 212 transitions. cyclomatic complexity: 93 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-08-27 16:31:35,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:31:35,596 INFO L93 Difference]: Finished difference Result 120 states and 211 transitions. [2021-08-27 16:31:35,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:31:35,597 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 211 transitions. [2021-08-27 16:31:35,598 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2021-08-27 16:31:35,599 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 120 states and 211 transitions. [2021-08-27 16:31:35,599 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2021-08-27 16:31:35,599 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2021-08-27 16:31:35,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 211 transitions. [2021-08-27 16:31:35,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:31:35,600 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 211 transitions. [2021-08-27 16:31:35,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 211 transitions. [2021-08-27 16:31:35,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-08-27 16:31:35,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 1.7583333333333333) internal successors, (211), 119 states have internal predecessors, (211), 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) [2021-08-27 16:31:35,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 211 transitions. [2021-08-27 16:31:35,613 INFO L704 BuchiCegarLoop]: Abstraction has 120 states and 211 transitions. [2021-08-27 16:31:35,614 INFO L587 BuchiCegarLoop]: Abstraction has 120 states and 211 transitions. [2021-08-27 16:31:35,614 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-27 16:31:35,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 211 transitions. [2021-08-27 16:31:35,615 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2021-08-27 16:31:35,615 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:31:35,615 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:31:35,616 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] [2021-08-27 16:31:35,616 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] [2021-08-27 16:31:35,616 INFO L791 eck$LassoCheckResult]: Stem: 1118#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 1070#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 1071#L400 assume !(1 == ~c_req_up~0); 1104#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 1067#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 1030#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 1031#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 1110#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 1004#L431-1 assume !(0 == ~e_f~0); 1005#L436-1 assume !(0 == ~e_g~0); 1053#L441-1 assume !(0 == ~e_e~0); 1105#L446-1 assume !(0 == ~e_c~0); 1100#L451-1 assume !(0 == ~e_wl~0); 1101#L456-1 assume !(1 == ~wl_pc~0); 1108#L468 assume !(2 == ~wl_pc~0); 1024#L469 assume !(1 == ~c1_pc~0); 1026#L479 assume !(1 == ~c2_pc~0); 1096#L488 assume !(1 == ~wb_pc~0); 1097#L497 assume !(1 == ~e_c~0); 1103#L506-1 assume !(1 == ~e_e~0); 1094#L511-1 assume !(1 == ~e_f~0); 1072#L516-1 assume !(1 == ~e_g~0); 1073#L521-1 assume !(1 == ~e_c~0); 1109#L526-1 assume !(1 == ~e_wl~0); 1057#L668-1 [2021-08-27 16:31:35,616 INFO L793 eck$LassoCheckResult]: Loop: 1057#L668-1 assume !false; 1116#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 1029#L373 assume !false; 1106#L291 assume !(0 == ~wl_st~0); 1009#L295 assume !(0 == ~c1_st~0); 1011#L298 assume !(0 == ~c2_st~0); 1063#L301 assume !(0 == ~wb_st~0); 1111#L304 assume !(0 == ~r_st~0); 1038#L389 start_simulation_~kernel_st~0 := 2; 1039#L544 assume !(1 == ~c_req_up~0); 1002#L544-2 start_simulation_~kernel_st~0 := 3; 1003#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 1047#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 1048#L561-1 assume !(0 == ~e_e~0); 1093#L566-1 assume 0 == ~e_c~0;~e_c~0 := 1; 1087#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 1032#L576-1 assume 1 == ~wl_pc~0; 1033#L582 assume 1 == ~e_wl~0;~wl_st~0 := 0; 1021#L589 assume !(1 == ~c1_pc~0); 1022#L599 assume !(1 == ~c2_pc~0); 1089#L608 assume !(1 == ~wb_pc~0); 1079#L617 assume 1 == ~e_c~0;~r_st~0 := 0; 1085#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 1086#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 1049#L636-1 assume !(1 == ~e_g~0); 1050#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 1054#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 1055#L651-1 assume 0 == ~wl_st~0; 1057#L668-1 [2021-08-27 16:31:35,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:35,617 INFO L82 PathProgramCache]: Analyzing trace with hash 255605079, now seen corresponding path program 1 times [2021-08-27 16:31:35,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:35,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580065586] [2021-08-27 16:31:35,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:35,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:35,635 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:31:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:35,691 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:31:35,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:35,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1806372813, now seen corresponding path program 4 times [2021-08-27 16:31:35,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:35,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513919608] [2021-08-27 16:31:35,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:35,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:35,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:35,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:35,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513919608] [2021-08-27 16:31:35,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513919608] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:35,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:35,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:31:35,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069040345] [2021-08-27 16:31:35,742 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:31:35,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:31:35,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:31:35,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:31:35,744 INFO L87 Difference]: Start difference. First operand 120 states and 211 transitions. cyclomatic complexity: 92 Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-08-27 16:31:35,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:31:35,797 INFO L93 Difference]: Finished difference Result 154 states and 273 transitions. [2021-08-27 16:31:35,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:31:35,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 273 transitions. [2021-08-27 16:31:35,800 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2021-08-27 16:31:35,802 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 154 states and 273 transitions. [2021-08-27 16:31:35,802 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 154 [2021-08-27 16:31:35,804 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 154 [2021-08-27 16:31:35,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 273 transitions. [2021-08-27 16:31:35,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:31:35,808 INFO L681 BuchiCegarLoop]: Abstraction has 154 states and 273 transitions. [2021-08-27 16:31:35,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states and 273 transitions. [2021-08-27 16:31:35,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-08-27 16:31:35,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 154 states have (on average 1.7727272727272727) internal successors, (273), 153 states have internal predecessors, (273), 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) [2021-08-27 16:31:35,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 273 transitions. [2021-08-27 16:31:35,822 INFO L704 BuchiCegarLoop]: Abstraction has 154 states and 273 transitions. [2021-08-27 16:31:35,822 INFO L587 BuchiCegarLoop]: Abstraction has 154 states and 273 transitions. [2021-08-27 16:31:35,822 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-08-27 16:31:35,822 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 154 states and 273 transitions. [2021-08-27 16:31:35,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2021-08-27 16:31:35,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:31:35,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:31:35,828 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] [2021-08-27 16:31:35,831 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] [2021-08-27 16:31:35,831 INFO L791 eck$LassoCheckResult]: Stem: 1400#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 1352#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 1353#L400 assume !(1 == ~c_req_up~0); 1386#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 1349#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 1310#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 1311#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 1392#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 1284#L431-1 assume !(0 == ~e_f~0); 1285#L436-1 assume 0 == ~e_g~0;~e_g~0 := 1; 1334#L441-1 assume !(0 == ~e_e~0); 1387#L446-1 assume !(0 == ~e_c~0); 1382#L451-1 assume !(0 == ~e_wl~0); 1383#L456-1 assume !(1 == ~wl_pc~0); 1390#L468 assume !(2 == ~wl_pc~0); 1304#L469 assume !(1 == ~c1_pc~0); 1306#L479 assume !(1 == ~c2_pc~0); 1378#L488 assume !(1 == ~wb_pc~0); 1379#L497 assume !(1 == ~e_c~0); 1385#L506-1 assume !(1 == ~e_e~0); 1376#L511-1 assume !(1 == ~e_f~0); 1354#L516-1 assume 1 == ~e_g~0;~e_g~0 := 2; 1355#L521-1 assume !(1 == ~e_c~0); 1391#L526-1 assume !(1 == ~e_wl~0); 1339#L668-1 [2021-08-27 16:31:35,832 INFO L793 eck$LassoCheckResult]: Loop: 1339#L668-1 assume !false; 1398#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 1309#L373 assume !false; 1388#L291 assume !(0 == ~wl_st~0); 1289#L295 assume !(0 == ~c1_st~0); 1291#L298 assume !(0 == ~c2_st~0); 1345#L301 assume !(0 == ~wb_st~0); 1393#L304 assume !(0 == ~r_st~0); 1318#L389 start_simulation_~kernel_st~0 := 2; 1319#L544 assume !(1 == ~c_req_up~0); 1282#L544-2 start_simulation_~kernel_st~0 := 3; 1283#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 1327#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 1328#L561-1 assume !(0 == ~e_e~0); 1375#L566-1 assume 0 == ~e_c~0;~e_c~0 := 1; 1369#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 1312#L576-1 assume 1 == ~wl_pc~0; 1313#L582 assume 1 == ~e_wl~0;~wl_st~0 := 0; 1301#L589 assume !(1 == ~c1_pc~0); 1302#L599 assume !(1 == ~c2_pc~0); 1371#L608 assume !(1 == ~wb_pc~0); 1361#L617 assume 1 == ~e_c~0;~r_st~0 := 0; 1367#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 1368#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 1330#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 1331#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 1336#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 1337#L651-1 assume 0 == ~wl_st~0; 1339#L668-1 [2021-08-27 16:31:35,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:35,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1535466835, now seen corresponding path program 1 times [2021-08-27 16:31:35,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:35,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116182495] [2021-08-27 16:31:35,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:35,836 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:35,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:35,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:35,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116182495] [2021-08-27 16:31:35,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116182495] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:35,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:35,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-27 16:31:35,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381305982] [2021-08-27 16:31:35,889 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 16:31:35,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:35,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1806432395, now seen corresponding path program 1 times [2021-08-27 16:31:35,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:35,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372508094] [2021-08-27 16:31:35,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:35,891 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:35,908 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:31:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:35,924 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:31:36,326 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 16:31:36,326 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 16:31:36,326 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 16:31:36,326 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 16:31:36,327 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 16:31:36,327 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:36,327 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 16:31:36,327 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 16:31:36,327 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration6_Loop [2021-08-27 16:31:36,327 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 16:31:36,328 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 16:31:36,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,678 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 16:31:36,678 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 16:31:36,680 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:36,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:36,684 INFO L229 MonitoredProcess]: Starting monitored process 2 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) [2021-08-27 16:31:36,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-27 16:31:36,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:36,696 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:36,717 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:36,717 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c2_st~0=-1} Honda state: {~c2_st~0=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:36,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:36,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:36,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:36,749 INFO L229 MonitoredProcess]: Starting monitored process 3 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) [2021-08-27 16:31:36,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-27 16:31:36,761 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:36,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:36,793 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:36,793 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet11=0} Honda state: {ULTIMATE.start_eval_#t~nondet11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:36,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:36,815 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:36,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:36,817 INFO L229 MonitoredProcess]: Starting monitored process 4 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) [2021-08-27 16:31:36,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-27 16:31:36,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:36,819 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:36,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:36,863 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:36,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:36,865 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2021-08-27 16:31:36,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-27 16:31:36,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 16:31:36,868 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:36,913 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 16:31:36,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:36,939 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 16:31:36,939 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 16:31:36,939 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 16:31:36,939 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 16:31:36,939 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 16:31:36,939 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:36,939 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 16:31:36,939 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 16:31:36,939 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration6_Loop [2021-08-27 16:31:36,939 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 16:31:36,939 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 16:31:36,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:36,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:37,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:37,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:37,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:37,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:37,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:37,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:37,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:37,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:37,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:37,287 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 16:31:37,290 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 16:31:37,291 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:37,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:37,292 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2021-08-27 16:31:37,301 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:37,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:37,309 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:37,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:37,310 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-27 16:31:37,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:37,312 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 16:31:37,312 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:37,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-08-27 16:31:37,325 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:37,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:37,350 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:37,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:37,351 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2021-08-27 16:31:37,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-08-27 16:31:37,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:37,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:37,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:37,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:37,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:31:37,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:37,362 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:31:37,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:37,376 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:37,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:37,403 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:37,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:37,406 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2021-08-27 16:31:37,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-08-27 16:31:37,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:37,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:37,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:37,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:37,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:31:37,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:37,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:31:37,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:37,432 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 16:31:37,444 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 16:31:37,445 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 16:31:37,446 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:37,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:37,452 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2021-08-27 16:31:37,460 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 16:31:37,460 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 16:31:37,460 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 16:31:37,460 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~e_c~0) = -1*~e_c~0 + 1 Supporting invariants [] [2021-08-27 16:31:37,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-27 16:31:37,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:37,485 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 16:31:37,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:37,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:37,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 16:31:37,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 16:31:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:37,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 16:31:37,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 16:31:37,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:37,863 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-08-27 16:31:37,864 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 154 states and 273 transitions. cyclomatic complexity: 120 Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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) [2021-08-27 16:31:37,927 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 154 states and 273 transitions. cyclomatic complexity: 120. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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) Result 480 states and 845 transitions. Complement of second has 5 states. [2021-08-27 16:31:37,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 16:31:37,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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) [2021-08-27 16:31:37,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2021-08-27 16:31:37,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 366 transitions. Stem has 24 letters. Loop has 28 letters. [2021-08-27 16:31:37,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 16:31:37,931 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 366 transitions. Stem has 52 letters. Loop has 28 letters. [2021-08-27 16:31:37,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 16:31:37,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 366 transitions. Stem has 24 letters. Loop has 56 letters. [2021-08-27 16:31:37,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 16:31:37,933 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 480 states and 845 transitions. [2021-08-27 16:31:37,938 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 318 [2021-08-27 16:31:37,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 480 states to 480 states and 845 transitions. [2021-08-27 16:31:37,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 367 [2021-08-27 16:31:37,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 371 [2021-08-27 16:31:37,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 480 states and 845 transitions. [2021-08-27 16:31:37,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 16:31:37,942 INFO L681 BuchiCegarLoop]: Abstraction has 480 states and 845 transitions. [2021-08-27 16:31:37,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states and 845 transitions. [2021-08-27 16:31:37,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 370. [2021-08-27 16:31:37,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 370 states have (on average 1.7648648648648648) internal successors, (653), 369 states have internal predecessors, (653), 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) [2021-08-27 16:31:37,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 653 transitions. [2021-08-27 16:31:37,951 INFO L704 BuchiCegarLoop]: Abstraction has 370 states and 653 transitions. [2021-08-27 16:31:37,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:31:37,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 16:31:37,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 16:31:37,952 INFO L87 Difference]: Start difference. First operand 370 states and 653 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2021-08-27 16:31:38,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:31:38,036 INFO L93 Difference]: Finished difference Result 570 states and 982 transitions. [2021-08-27 16:31:38,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 16:31:38,037 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 570 states and 982 transitions. [2021-08-27 16:31:38,041 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 332 [2021-08-27 16:31:38,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 570 states to 570 states and 982 transitions. [2021-08-27 16:31:38,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 391 [2021-08-27 16:31:38,045 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 391 [2021-08-27 16:31:38,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 570 states and 982 transitions. [2021-08-27 16:31:38,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 16:31:38,045 INFO L681 BuchiCegarLoop]: Abstraction has 570 states and 982 transitions. [2021-08-27 16:31:38,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states and 982 transitions. [2021-08-27 16:31:38,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 542. [2021-08-27 16:31:38,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 542 states have (on average 1.7380073800738007) internal successors, (942), 541 states have internal predecessors, (942), 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) [2021-08-27 16:31:38,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 942 transitions. [2021-08-27 16:31:38,055 INFO L704 BuchiCegarLoop]: Abstraction has 542 states and 942 transitions. [2021-08-27 16:31:38,055 INFO L587 BuchiCegarLoop]: Abstraction has 542 states and 942 transitions. [2021-08-27 16:31:38,055 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-08-27 16:31:38,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 542 states and 942 transitions. [2021-08-27 16:31:38,058 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 332 [2021-08-27 16:31:38,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:31:38,058 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:31:38,059 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] [2021-08-27 16:31:38,059 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] [2021-08-27 16:31:38,059 INFO L791 eck$LassoCheckResult]: Stem: 3276#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 3164#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 3165#L400 assume !(1 == ~c_req_up~0); 3230#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 3159#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 3087#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 3088#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 3242#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 3042#L431-1 assume !(0 == ~e_f~0); 3043#L436-1 assume !(0 == ~e_g~0); 3132#L441-1 assume !(0 == ~e_e~0); 3231#L446-1 assume !(0 == ~e_c~0); 3223#L451-1 assume !(0 == ~e_wl~0); 3224#L456-1 assume !(1 == ~wl_pc~0); 3235#L468 assume !(2 == ~wl_pc~0); 3078#L469 assume !(1 == ~c1_pc~0); 3080#L479 assume !(1 == ~c2_pc~0); 3218#L488 assume !(1 == ~wb_pc~0); 3219#L497 assume !(1 == ~e_c~0); 3288#L506-1 assume !(1 == ~e_e~0); 3286#L511-1 assume 1 == ~e_f~0;~e_f~0 := 2; 3284#L516-1 assume !(1 == ~e_g~0); 3167#L521-1 assume !(1 == ~e_c~0); 3236#L526-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 3237#L668-1 [2021-08-27 16:31:38,060 INFO L793 eck$LassoCheckResult]: Loop: 3237#L668-1 assume !false; 3442#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 3441#L373 assume !false; 3440#L291 assume !(0 == ~wl_st~0); 3439#L295 assume !(0 == ~c1_st~0); 3438#L298 assume !(0 == ~c2_st~0); 3426#L301 assume !(0 == ~wb_st~0); 3388#L304 assume !(0 == ~r_st~0); 3101#L389 start_simulation_~kernel_st~0 := 2; 3102#L544 assume !(1 == ~c_req_up~0); 3391#L544-2 start_simulation_~kernel_st~0 := 3; 3383#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 3384#L556-2 assume !(0 == ~e_g~0); 3470#L561-1 assume !(0 == ~e_e~0); 3469#L566-1 assume 0 == ~e_c~0;~e_c~0 := 1; 3468#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 3467#L576-1 assume 1 == ~wl_pc~0; 3465#L582 assume 1 == ~e_wl~0;~wl_st~0 := 0; 3072#L589 assume !(1 == ~c1_pc~0); 3073#L599 assume !(1 == ~c2_pc~0); 3376#L608 assume !(1 == ~wb_pc~0); 3375#L617 assume 1 == ~e_c~0;~r_st~0 := 0; 3368#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 3369#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 3363#L636-1 assume !(1 == ~e_g~0); 3361#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 3362#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 3454#L651-1 assume 0 == ~wl_st~0; 3237#L668-1 [2021-08-27 16:31:38,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:38,060 INFO L82 PathProgramCache]: Analyzing trace with hash 255545495, now seen corresponding path program 1 times [2021-08-27 16:31:38,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:38,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151216847] [2021-08-27 16:31:38,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:38,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:38,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:38,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:38,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151216847] [2021-08-27 16:31:38,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151216847] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:38,087 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:38,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-27 16:31:38,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944226318] [2021-08-27 16:31:38,088 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 16:31:38,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:38,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1467526129, now seen corresponding path program 1 times [2021-08-27 16:31:38,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:38,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446701071] [2021-08-27 16:31:38,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:38,089 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:38,093 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:31:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:38,098 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:31:38,361 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 16:31:38,362 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 16:31:38,362 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 16:31:38,362 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 16:31:38,362 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 16:31:38,362 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:38,362 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 16:31:38,362 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 16:31:38,362 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration7_Loop [2021-08-27 16:31:38,362 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 16:31:38,363 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 16:31:38,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:38,646 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 16:31:38,647 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 16:31:38,647 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:38,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:38,649 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2021-08-27 16:31:38,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:38,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:38,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-08-27 16:31:38,679 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:38,679 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet10=0} Honda state: {ULTIMATE.start_eval_#t~nondet10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:38,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-08-27 16:31:38,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:38,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:38,700 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2021-08-27 16:31:38,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-08-27 16:31:38,703 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:38,703 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:38,718 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:38,718 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c2_st~0=-1} Honda state: {~c2_st~0=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:38,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:38,736 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:38,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:38,777 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2021-08-27 16:31:38,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-08-27 16:31:38,780 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:38,780 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:38,787 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:38,787 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet11=0} Honda state: {ULTIMATE.start_eval_#t~nondet11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:38,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-08-27 16:31:38,803 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:38,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:38,804 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2021-08-27 16:31:38,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-08-27 16:31:38,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:38,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:38,814 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:38,815 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_~tmp___3~0=0} Honda state: {ULTIMATE.start_eval_~tmp___3~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:38,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:38,830 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:38,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:38,831 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2021-08-27 16:31:38,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-08-27 16:31:38,834 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:38,834 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:38,846 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:38,846 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet9=0} Honda state: {ULTIMATE.start_eval_#t~nondet9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:38,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:38,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:38,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:38,863 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2021-08-27 16:31:38,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-08-27 16:31:38,865 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:38,865 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:38,879 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:38,879 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet7=0} Honda state: {ULTIMATE.start_eval_#t~nondet7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:38,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:38,894 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:38,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:38,895 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2021-08-27 16:31:38,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-08-27 16:31:38,897 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:38,897 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:38,904 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:38,904 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_start_simulation_~kernel_st~0=3} Honda state: {ULTIMATE.start_start_simulation_~kernel_st~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:38,920 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-08-27 16:31:38,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:38,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:38,921 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2021-08-27 16:31:38,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-08-27 16:31:38,923 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:38,923 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:38,935 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:38,935 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c1_st~0=4} Honda state: {~c1_st~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:38,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:38,950 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:38,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:38,951 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2021-08-27 16:31:38,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-08-27 16:31:38,953 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:38,953 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:38,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:38,975 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:38,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:38,976 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2021-08-27 16:31:38,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-08-27 16:31:38,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 16:31:38,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:38,992 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 16:31:39,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:39,012 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 16:31:39,012 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 16:31:39,012 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 16:31:39,012 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 16:31:39,012 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 16:31:39,012 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:39,012 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 16:31:39,012 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 16:31:39,012 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration7_Loop [2021-08-27 16:31:39,013 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 16:31:39,013 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 16:31:39,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:39,296 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 16:31:39,297 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 16:31:39,297 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:39,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:39,301 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2021-08-27 16:31:39,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-08-27 16:31:39,314 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:39,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:39,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:39,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:39,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:31:39,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:39,322 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:31:39,322 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:39,336 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:39,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:39,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:39,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:39,356 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2021-08-27 16:31:39,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-08-27 16:31:39,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:39,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:39,363 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:39,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:39,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:31:39,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:39,364 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:31:39,364 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:39,388 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:39,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:39,416 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:39,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:39,417 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2021-08-27 16:31:39,421 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:39,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:39,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:39,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:39,429 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-27 16:31:39,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:39,430 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 16:31:39,430 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:39,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-08-27 16:31:39,445 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:39,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:39,471 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:39,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:39,477 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2021-08-27 16:31:39,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:39,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-08-27 16:31:39,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:39,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:39,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:39,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:31:39,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:39,490 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:31:39,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:39,516 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:39,535 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-08-27 16:31:39,536 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:39,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:39,536 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2021-08-27 16:31:39,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-08-27 16:31:39,538 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:39,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:39,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:39,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:39,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:31:39,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:39,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:31:39,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:39,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:39,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:39,580 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:39,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:39,582 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2021-08-27 16:31:39,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:39,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:39,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:39,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:39,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:31:39,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:39,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-08-27 16:31:39,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:31:39,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:39,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:39,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-08-27 16:31:39,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:39,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:39,615 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2021-08-27 16:31:39,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-08-27 16:31:39,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:39,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:39,623 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:39,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:39,624 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-27 16:31:39,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:39,624 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 16:31:39,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:39,625 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:39,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-08-27 16:31:39,640 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:39,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:39,641 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2021-08-27 16:31:39,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-08-27 16:31:39,643 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:39,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:39,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:39,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:39,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:31:39,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:39,650 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:31:39,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:39,652 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 16:31:39,653 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 16:31:39,654 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 16:31:39,654 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:39,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:39,654 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2021-08-27 16:31:39,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-08-27 16:31:39,656 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 16:31:39,656 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 16:31:39,656 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 16:31:39,656 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~e_c~0) = -1*~e_c~0 + 1 Supporting invariants [] [2021-08-27 16:31:39,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:39,674 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 16:31:39,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:39,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 16:31:39,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 16:31:39,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:39,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 16:31:39,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 16:31:39,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:39,990 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-08-27 16:31:39,990 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 542 states and 942 transitions. cyclomatic complexity: 406 Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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) [2021-08-27 16:31:40,020 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 542 states and 942 transitions. cyclomatic complexity: 406. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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) Result 1052 states and 1827 transitions. Complement of second has 5 states. [2021-08-27 16:31:40,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 16:31:40,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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) [2021-08-27 16:31:40,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 362 transitions. [2021-08-27 16:31:40,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 362 transitions. Stem has 24 letters. Loop has 28 letters. [2021-08-27 16:31:40,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 16:31:40,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 362 transitions. Stem has 52 letters. Loop has 28 letters. [2021-08-27 16:31:40,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 16:31:40,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 362 transitions. Stem has 24 letters. Loop has 56 letters. [2021-08-27 16:31:40,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 16:31:40,024 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1052 states and 1827 transitions. [2021-08-27 16:31:40,031 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 664 [2021-08-27 16:31:40,038 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1052 states to 1052 states and 1827 transitions. [2021-08-27 16:31:40,038 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 706 [2021-08-27 16:31:40,039 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 712 [2021-08-27 16:31:40,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1052 states and 1827 transitions. [2021-08-27 16:31:40,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 16:31:40,039 INFO L681 BuchiCegarLoop]: Abstraction has 1052 states and 1827 transitions. [2021-08-27 16:31:40,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states and 1827 transitions. [2021-08-27 16:31:40,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 542. [2021-08-27 16:31:40,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 542 states have (on average 1.7380073800738007) internal successors, (942), 541 states have internal predecessors, (942), 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) [2021-08-27 16:31:40,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 942 transitions. [2021-08-27 16:31:40,052 INFO L704 BuchiCegarLoop]: Abstraction has 542 states and 942 transitions. [2021-08-27 16:31:40,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:31:40,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 16:31:40,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 16:31:40,053 INFO L87 Difference]: Start difference. First operand 542 states and 942 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2021-08-27 16:31:40,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:31:40,143 INFO L93 Difference]: Finished difference Result 968 states and 1630 transitions. [2021-08-27 16:31:40,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 16:31:40,144 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 968 states and 1630 transitions. [2021-08-27 16:31:40,150 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 534 [2021-08-27 16:31:40,165 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 968 states to 968 states and 1630 transitions. [2021-08-27 16:31:40,165 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 613 [2021-08-27 16:31:40,166 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 613 [2021-08-27 16:31:40,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 968 states and 1630 transitions. [2021-08-27 16:31:40,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 16:31:40,166 INFO L681 BuchiCegarLoop]: Abstraction has 968 states and 1630 transitions. [2021-08-27 16:31:40,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states and 1630 transitions. [2021-08-27 16:31:40,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 955. [2021-08-27 16:31:40,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 955 states have (on average 1.6910994764397906) internal successors, (1615), 954 states have internal predecessors, (1615), 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) [2021-08-27 16:31:40,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1615 transitions. [2021-08-27 16:31:40,182 INFO L704 BuchiCegarLoop]: Abstraction has 955 states and 1615 transitions. [2021-08-27 16:31:40,183 INFO L587 BuchiCegarLoop]: Abstraction has 955 states and 1615 transitions. [2021-08-27 16:31:40,183 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-08-27 16:31:40,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 955 states and 1615 transitions. [2021-08-27 16:31:40,187 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 532 [2021-08-27 16:31:40,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:31:40,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:31:40,188 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] [2021-08-27 16:31:40,188 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] [2021-08-27 16:31:40,188 INFO L791 eck$LassoCheckResult]: Stem: 6610#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 6462#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 6463#L400 assume !(1 == ~c_req_up~0); 6540#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 6455#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 6456#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 6575#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 6576#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 6335#L431-1 assume !(0 == ~e_f~0); 6336#L436-1 assume !(0 == ~e_g~0); 6620#L441-1 assume !(0 == ~e_e~0); 6621#L446-1 assume 0 == ~e_c~0;~e_c~0 := 1; 6542#L451-1 assume !(0 == ~e_wl~0); 6579#L456-1 assume !(1 == ~wl_pc~0); 6580#L468 assume !(2 == ~wl_pc~0); 6366#L469 assume !(1 == ~c1_pc~0); 6368#L479 assume !(1 == ~c2_pc~0); 6523#L488 assume !(1 == ~wb_pc~0); 6524#L497 assume !(1 == ~e_c~0); 6536#L506-1 assume !(1 == ~e_e~0); 6521#L511-1 assume !(1 == ~e_f~0); 6522#L516-1 assume 1 == ~e_g~0;~e_g~0 := 2; 6465#L521-1 assume !(1 == ~e_c~0); 6705#L526-1 assume !(1 == ~e_wl~0); 6836#L668-1 assume !false; 6837#L538 [2021-08-27 16:31:40,189 INFO L793 eck$LassoCheckResult]: Loop: 6837#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 7083#L373 assume !false; 7084#L291 assume !(0 == ~wl_st~0); 6337#L295 assume !(0 == ~c1_st~0); 6339#L298 assume !(0 == ~c2_st~0); 6565#L301 assume !(0 == ~wb_st~0); 6566#L304 assume !(0 == ~r_st~0); 7160#L389 start_simulation_~kernel_st~0 := 2; 6594#L544 assume !(1 == ~c_req_up~0); 6596#L544-2 start_simulation_~kernel_st~0 := 3; 6896#L556 assume !(0 == ~e_f~0); 6897#L556-2 assume !(0 == ~e_g~0); 7158#L561-1 assume !(0 == ~e_e~0); 7156#L566-1 assume !(0 == ~e_c~0); 7154#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 7152#L576-1 assume 1 == ~wl_pc~0; 7146#L582 assume 1 == ~e_wl~0;~wl_st~0 := 0; 7141#L589 assume !(1 == ~c1_pc~0); 6878#L599 assume !(1 == ~c2_pc~0); 6874#L608 assume !(1 == ~wb_pc~0); 7131#L617 assume 1 == ~e_c~0;~r_st~0 := 0; 7126#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 7127#L631-1 assume !(1 == ~e_f~0); 6864#L636-1 assume !(1 == ~e_g~0); 6409#L641-1 assume !(1 == ~e_c~0); 7172#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 7169#L651-1 assume 0 == ~wl_st~0; 7165#L668-1 assume !false; 6837#L538 [2021-08-27 16:31:40,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:40,189 INFO L82 PathProgramCache]: Analyzing trace with hash 344880704, now seen corresponding path program 1 times [2021-08-27 16:31:40,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:40,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053158594] [2021-08-27 16:31:40,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:40,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:40,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:40,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:40,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053158594] [2021-08-27 16:31:40,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053158594] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:40,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:40,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-27 16:31:40,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275783496] [2021-08-27 16:31:40,214 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 16:31:40,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:40,214 INFO L82 PathProgramCache]: Analyzing trace with hash 497580109, now seen corresponding path program 1 times [2021-08-27 16:31:40,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:40,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356252412] [2021-08-27 16:31:40,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:40,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:40,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:40,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:40,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356252412] [2021-08-27 16:31:40,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356252412] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:40,229 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:40,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:31:40,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830995397] [2021-08-27 16:31:40,230 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:31:40,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:31:40,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 16:31:40,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 16:31:40,231 INFO L87 Difference]: Start difference. First operand 955 states and 1615 transitions. cyclomatic complexity: 670 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-08-27 16:31:40,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:31:40,305 INFO L93 Difference]: Finished difference Result 977 states and 1626 transitions. [2021-08-27 16:31:40,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 16:31:40,305 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 977 states and 1626 transitions. [2021-08-27 16:31:40,312 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 547 [2021-08-27 16:31:40,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 977 states to 977 states and 1626 transitions. [2021-08-27 16:31:40,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 626 [2021-08-27 16:31:40,319 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 626 [2021-08-27 16:31:40,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 977 states and 1626 transitions. [2021-08-27 16:31:40,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 16:31:40,319 INFO L681 BuchiCegarLoop]: Abstraction has 977 states and 1626 transitions. [2021-08-27 16:31:40,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states and 1626 transitions. [2021-08-27 16:31:40,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 894. [2021-08-27 16:31:40,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 894 states have (on average 1.6700223713646531) internal successors, (1493), 893 states have internal predecessors, (1493), 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) [2021-08-27 16:31:40,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1493 transitions. [2021-08-27 16:31:40,335 INFO L704 BuchiCegarLoop]: Abstraction has 894 states and 1493 transitions. [2021-08-27 16:31:40,335 INFO L587 BuchiCegarLoop]: Abstraction has 894 states and 1493 transitions. [2021-08-27 16:31:40,335 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-08-27 16:31:40,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 894 states and 1493 transitions. [2021-08-27 16:31:40,339 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 547 [2021-08-27 16:31:40,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:31:40,340 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:31:40,340 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] [2021-08-27 16:31:40,341 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] [2021-08-27 16:31:40,341 INFO L791 eck$LassoCheckResult]: Stem: 8515#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 8399#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 8400#L400 assume !(1 == ~c_req_up~0); 8467#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 8392#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 8393#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 8490#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 8491#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 8271#L431-1 assume !(0 == ~e_f~0); 8272#L436-1 assume !(0 == ~e_g~0); 8521#L441-1 assume !(0 == ~e_e~0); 8468#L446-1 assume !(0 == ~e_c~0); 8460#L451-1 assume !(0 == ~e_wl~0); 8461#L456-1 assume !(1 == ~wl_pc~0); 8474#L468 assume !(2 == ~wl_pc~0); 8473#L469 assume !(1 == ~c1_pc~0); 8457#L479 assume !(1 == ~c2_pc~0); 8459#L488 assume !(1 == ~wb_pc~0); 8483#L497 assume !(1 == ~e_c~0); 8541#L506-1 assume !(1 == ~e_e~0); 8538#L511-1 assume !(1 == ~e_f~0); 8533#L516-1 assume 1 == ~e_g~0;~e_g~0 := 2; 8477#L521-1 assume !(1 == ~e_c~0); 8478#L526-1 assume !(1 == ~e_wl~0); 8726#L668-1 assume !false; 8727#L538 [2021-08-27 16:31:40,341 INFO L793 eck$LassoCheckResult]: Loop: 8727#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 8941#L373 assume !false; 8942#L291 assume !(0 == ~wl_st~0); 8937#L295 assume !(0 == ~c1_st~0); 8938#L298 assume !(0 == ~c2_st~0); 8932#L301 assume !(0 == ~wb_st~0); 8934#L304 assume !(0 == ~r_st~0); 8927#L389 start_simulation_~kernel_st~0 := 2; 8928#L544 assume !(1 == ~c_req_up~0); 8267#L544-2 start_simulation_~kernel_st~0 := 3; 8268#L556 assume !(0 == ~e_f~0); 8516#L556-2 assume !(0 == ~e_g~0); 9122#L561-1 assume !(0 == ~e_e~0); 9121#L566-1 assume !(0 == ~e_c~0); 9120#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 9118#L576-1 assume 1 == ~wl_pc~0; 9115#L582 assume 1 == ~e_wl~0;~wl_st~0 := 0; 9112#L589 assume !(1 == ~c1_pc~0); 9111#L599 assume !(1 == ~c2_pc~0); 9109#L608 assume !(1 == ~wb_pc~0); 9107#L617 assume !(1 == ~e_c~0); 9106#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 9104#L631-1 assume !(1 == ~e_f~0); 9101#L636-1 assume !(1 == ~e_g~0); 8966#L641-1 assume !(1 == ~e_c~0); 9100#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 9097#L651-1 assume 0 == ~wl_st~0; 9093#L668-1 assume !false; 8727#L538 [2021-08-27 16:31:40,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:40,342 INFO L82 PathProgramCache]: Analyzing trace with hash -666236546, now seen corresponding path program 1 times [2021-08-27 16:31:40,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:40,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419177014] [2021-08-27 16:31:40,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:40,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:40,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:40,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:40,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419177014] [2021-08-27 16:31:40,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419177014] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:40,373 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:40,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-27 16:31:40,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171630251] [2021-08-27 16:31:40,374 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 16:31:40,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:40,375 INFO L82 PathProgramCache]: Analyzing trace with hash -311766517, now seen corresponding path program 1 times [2021-08-27 16:31:40,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:40,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172888430] [2021-08-27 16:31:40,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:40,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:40,380 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:31:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:40,396 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:31:40,626 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 16:31:40,626 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 16:31:40,626 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 16:31:40,626 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 16:31:40,627 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 16:31:40,627 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:40,627 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 16:31:40,627 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 16:31:40,627 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration9_Loop [2021-08-27 16:31:40,627 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 16:31:40,627 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 16:31:40,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:40,932 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 16:31:40,932 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 16:31:40,932 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:40,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:40,933 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2021-08-27 16:31:40,941 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:40,942 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:40,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-08-27 16:31:40,965 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:40,965 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_~tmp___3~0=0} Honda state: {ULTIMATE.start_eval_~tmp___3~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:40,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-08-27 16:31:40,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:40,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:40,988 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2021-08-27 16:31:40,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-08-27 16:31:40,990 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:40,990 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:41,005 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:41,011 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~r_st~0=-1} Honda state: {~r_st~0=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:41,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-08-27 16:31:41,027 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,028 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2021-08-27 16:31:41,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-08-27 16:31:41,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:41,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:41,041 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:41,041 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet10=0} Honda state: {ULTIMATE.start_eval_#t~nondet10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:41,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-08-27 16:31:41,058 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,059 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2021-08-27 16:31:41,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-08-27 16:31:41,061 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:41,061 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:41,068 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:41,069 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_~tmp~0=0} Honda state: {ULTIMATE.start_eval_~tmp~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:41,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-08-27 16:31:41,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,085 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2021-08-27 16:31:41,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-08-27 16:31:41,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:41,087 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:41,102 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:41,102 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_~tmp___2~0=0} Honda state: {ULTIMATE.start_eval_~tmp___2~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:41,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:41,118 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,119 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2021-08-27 16:31:41,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-08-27 16:31:41,121 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:41,121 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:41,132 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:41,133 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c2_st~0=-1} Honda state: {~c2_st~0=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:41,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:41,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,150 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2021-08-27 16:31:41,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-08-27 16:31:41,152 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:41,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:41,165 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:41,165 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c1_st~0=4} Honda state: {~c1_st~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:41,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:41,188 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,189 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2021-08-27 16:31:41,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-08-27 16:31:41,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:41,203 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:41,218 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:41,218 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~e_g~0=-7} Honda state: {~e_g~0=-7} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:41,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-08-27 16:31:41,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,235 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2021-08-27 16:31:41,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-08-27 16:31:41,237 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:41,237 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:41,248 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 16:31:41,248 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~wb_st~0=-1} Honda state: {~wb_st~0=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 16:31:41,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:41,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,265 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2021-08-27 16:31:41,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-08-27 16:31:41,267 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:31:41,267 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:41,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:41,300 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,301 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2021-08-27 16:31:41,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-08-27 16:31:41,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 16:31:41,303 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:31:41,332 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 16:31:41,335 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-08-27 16:31:41,335 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 16:31:41,335 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 16:31:41,335 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 16:31:41,335 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 16:31:41,335 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 16:31:41,335 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,335 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 16:31:41,335 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 16:31:41,335 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration9_Loop [2021-08-27 16:31:41,335 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 16:31:41,335 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 16:31:41,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:31:41,638 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 16:31:41,638 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 16:31:41,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,643 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2021-08-27 16:31:41,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-08-27 16:31:41,646 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:41,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:41,651 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:41,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:41,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:31:41,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:41,652 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:31:41,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:41,653 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:41,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:41,669 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,670 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2021-08-27 16:31:41,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-08-27 16:31:41,672 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:41,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:41,678 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:41,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:41,678 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-27 16:31:41,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:41,679 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 16:31:41,679 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:41,680 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:41,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:41,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,697 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2021-08-27 16:31:41,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-08-27 16:31:41,699 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:41,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:41,709 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:41,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:41,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:31:41,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:41,709 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:31:41,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:41,710 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:41,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-08-27 16:31:41,726 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,727 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2021-08-27 16:31:41,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-08-27 16:31:41,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:41,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:41,741 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:41,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:41,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:31:41,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:41,742 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:31:41,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:41,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:41,758 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-08-27 16:31:41,759 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,760 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2021-08-27 16:31:41,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-08-27 16:31:41,761 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:41,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:41,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:41,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:41,767 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-27 16:31:41,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:41,768 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 16:31:41,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:41,770 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:41,785 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-08-27 16:31:41,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,786 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2021-08-27 16:31:41,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-08-27 16:31:41,788 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:41,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:41,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:41,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:41,794 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-27 16:31:41,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:41,795 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 16:31:41,795 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:41,796 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:41,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-08-27 16:31:41,811 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,812 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2021-08-27 16:31:41,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-08-27 16:31:41,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:41,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:41,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:41,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:41,821 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-27 16:31:41,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:41,822 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 16:31:41,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:41,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:41,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-08-27 16:31:41,848 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,848 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2021-08-27 16:31:41,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-08-27 16:31:41,850 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:41,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:41,856 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:41,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:41,856 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-27 16:31:41,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:41,861 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 16:31:41,861 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:41,866 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:41,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:41,881 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,882 INFO L229 MonitoredProcess]: Starting monitored process 48 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) [2021-08-27 16:31:41,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-08-27 16:31:41,889 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:41,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:41,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:41,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:41,895 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-27 16:31:41,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:41,896 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 16:31:41,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:41,898 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:41,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-08-27 16:31:41,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,915 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2021-08-27 16:31:41,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-08-27 16:31:41,917 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:41,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:41,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:41,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:41,923 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-27 16:31:41,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:41,924 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 16:31:41,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:41,952 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:31:41,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:41,974 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,974 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2021-08-27 16:31:41,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-08-27 16:31:41,976 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 16:31:41,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:31:41,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:31:41,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:31:41,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:31:41,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:31:41,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:31:41,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:31:41,994 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 16:31:41,996 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 16:31:41,996 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 16:31:41,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:31:41,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:31:41,997 INFO L229 MonitoredProcess]: Starting monitored process 51 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) [2021-08-27 16:31:41,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-08-27 16:31:41,999 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 16:31:41,999 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 16:31:41,999 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 16:31:41,999 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~e_e~0) = -2*~e_e~0 + 3 Supporting invariants [] [2021-08-27 16:31:42,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-08-27 16:31:42,015 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 16:31:42,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:42,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 16:31:42,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 16:31:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:42,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 16:31:42,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 16:31:42,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:42,343 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 16:31:42,343 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 894 states and 1493 transitions. cyclomatic complexity: 608 Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2021-08-27 16:31:42,374 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 894 states and 1493 transitions. cyclomatic complexity: 608. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) Result 2509 states and 4176 transitions. Complement of second has 5 states. [2021-08-27 16:31:42,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 16:31:42,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2021-08-27 16:31:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions. [2021-08-27 16:31:42,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 199 transitions. Stem has 25 letters. Loop has 28 letters. [2021-08-27 16:31:42,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 16:31:42,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 199 transitions. Stem has 53 letters. Loop has 28 letters. [2021-08-27 16:31:42,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 16:31:42,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 199 transitions. Stem has 25 letters. Loop has 56 letters. [2021-08-27 16:31:42,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 16:31:42,377 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2509 states and 4176 transitions. [2021-08-27 16:31:42,396 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 1064 [2021-08-27 16:31:42,440 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2509 states to 2509 states and 4176 transitions. [2021-08-27 16:31:42,441 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1144 [2021-08-27 16:31:42,442 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1165 [2021-08-27 16:31:42,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2509 states and 4176 transitions. [2021-08-27 16:31:42,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 16:31:42,442 INFO L681 BuchiCegarLoop]: Abstraction has 2509 states and 4176 transitions. [2021-08-27 16:31:42,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states and 4176 transitions. [2021-08-27 16:31:42,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-08-27 16:31:42,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 2488. [2021-08-27 16:31:42,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 2488 states have (on average 1.6643890675241158) internal successors, (4141), 2487 states have internal predecessors, (4141), 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) [2021-08-27 16:31:42,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 4141 transitions. [2021-08-27 16:31:42,485 INFO L704 BuchiCegarLoop]: Abstraction has 2488 states and 4141 transitions. [2021-08-27 16:31:42,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:31:42,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 16:31:42,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 16:31:42,486 INFO L87 Difference]: Start difference. First operand 2488 states and 4141 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-08-27 16:31:42,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:31:42,565 INFO L93 Difference]: Finished difference Result 3187 states and 5219 transitions. [2021-08-27 16:31:42,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 16:31:42,566 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3187 states and 5219 transitions. [2021-08-27 16:31:42,588 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 1227 [2021-08-27 16:31:42,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3187 states to 3187 states and 5219 transitions. [2021-08-27 16:31:42,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1291 [2021-08-27 16:31:42,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1291 [2021-08-27 16:31:42,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3187 states and 5219 transitions. [2021-08-27 16:31:42,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 16:31:42,608 INFO L681 BuchiCegarLoop]: Abstraction has 3187 states and 5219 transitions. [2021-08-27 16:31:42,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3187 states and 5219 transitions. [2021-08-27 16:31:42,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3187 to 3187. [2021-08-27 16:31:42,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3187 states, 3187 states have (on average 1.6375902102290556) internal successors, (5219), 3186 states have internal predecessors, (5219), 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) [2021-08-27 16:31:42,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3187 states to 3187 states and 5219 transitions. [2021-08-27 16:31:42,670 INFO L704 BuchiCegarLoop]: Abstraction has 3187 states and 5219 transitions. [2021-08-27 16:31:42,670 INFO L587 BuchiCegarLoop]: Abstraction has 3187 states and 5219 transitions. [2021-08-27 16:31:42,670 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-08-27 16:31:42,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3187 states and 5219 transitions. [2021-08-27 16:31:42,686 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 1227 [2021-08-27 16:31:42,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:31:42,686 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:31:42,687 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] [2021-08-27 16:31:42,687 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:31:42,687 INFO L791 eck$LassoCheckResult]: Stem: 17770#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 17658#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 17659#L400 assume !(1 == ~c_req_up~0); 17727#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 17654#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 17584#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 17585#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 17740#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 17741#L431-1 assume !(0 == ~e_f~0); 17623#L436-1 assume !(0 == ~e_g~0); 17624#L441-1 assume !(0 == ~e_e~0); 17787#L446-1 assume !(0 == ~e_c~0); 17786#L451-1 assume !(0 == ~e_wl~0); 17753#L456-1 assume !(1 == ~wl_pc~0); 17733#L468 assume !(2 == ~wl_pc~0); 17732#L469 assume !(1 == ~c1_pc~0); 17781#L479 assume !(1 == ~c2_pc~0); 17711#L488 assume !(1 == ~wb_pc~0); 17712#L497 assume !(1 == ~e_c~0); 17778#L506-1 assume !(1 == ~e_e~0); 17709#L511-1 assume !(1 == ~e_f~0); 17710#L516-1 assume !(1 == ~e_g~0); 17736#L521-1 assume !(1 == ~e_c~0); 17737#L526-1 assume !(1 == ~e_wl~0); 17859#L668-1 assume !false; 17860#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 18003#L373 [2021-08-27 16:31:42,687 INFO L793 eck$LassoCheckResult]: Loop: 18003#L373 assume !false; 19067#L291 assume 0 == ~wl_st~0; 19059#L304-1 assume !(0 == ~wl_st~0); 19058#L313 assume !(0 == ~c1_st~0); 19100#L328 assume !(0 == ~c2_st~0); 19084#L343 assume !(0 == ~wb_st~0); 19080#L358 assume !(0 == ~r_st~0); 18003#L373 [2021-08-27 16:31:42,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:42,688 INFO L82 PathProgramCache]: Analyzing trace with hash 823350777, now seen corresponding path program 1 times [2021-08-27 16:31:42,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:42,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271168143] [2021-08-27 16:31:42,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:42,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:42,696 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:31:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:42,706 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:31:42,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:42,707 INFO L82 PathProgramCache]: Analyzing trace with hash 117964263, now seen corresponding path program 1 times [2021-08-27 16:31:42,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:42,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242501902] [2021-08-27 16:31:42,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:42,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:42,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:42,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:42,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242501902] [2021-08-27 16:31:42,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242501902] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:42,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:42,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:31:42,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34450195] [2021-08-27 16:31:42,719 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:31:42,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:31:42,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:31:42,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:31:42,720 INFO L87 Difference]: Start difference. First operand 3187 states and 5219 transitions. cyclomatic complexity: 2068 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-08-27 16:31:42,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:31:42,768 INFO L93 Difference]: Finished difference Result 4973 states and 7999 transitions. [2021-08-27 16:31:42,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:31:42,769 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4973 states and 7999 transitions. [2021-08-27 16:31:42,800 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 1926 [2021-08-27 16:31:42,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4973 states to 4973 states and 7999 transitions. [2021-08-27 16:31:42,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1992 [2021-08-27 16:31:42,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1992 [2021-08-27 16:31:42,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4973 states and 7999 transitions. [2021-08-27 16:31:42,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 16:31:42,832 INFO L681 BuchiCegarLoop]: Abstraction has 4973 states and 7999 transitions. [2021-08-27 16:31:42,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4973 states and 7999 transitions. [2021-08-27 16:31:42,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4973 to 4973. [2021-08-27 16:31:42,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4973 states, 4973 states have (on average 1.6084858234466117) internal successors, (7999), 4972 states have internal predecessors, (7999), 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) [2021-08-27 16:31:42,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4973 states to 4973 states and 7999 transitions. [2021-08-27 16:31:42,951 INFO L704 BuchiCegarLoop]: Abstraction has 4973 states and 7999 transitions. [2021-08-27 16:31:42,951 INFO L587 BuchiCegarLoop]: Abstraction has 4973 states and 7999 transitions. [2021-08-27 16:31:42,952 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-08-27 16:31:42,952 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4973 states and 7999 transitions. [2021-08-27 16:31:42,971 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 1926 [2021-08-27 16:31:42,971 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:31:42,971 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:31:42,972 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] [2021-08-27 16:31:42,972 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:31:42,972 INFO L791 eck$LassoCheckResult]: Stem: 25962#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 25827#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 25828#L400 assume !(1 == ~c_req_up~0); 25907#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 25986#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 25744#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 25745#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 25919#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 25920#L431-1 assume !(0 == ~e_f~0); 25792#L436-1 assume !(0 == ~e_g~0); 25793#L441-1 assume !(0 == ~e_e~0); 25985#L446-1 assume !(0 == ~e_c~0); 25984#L451-1 assume !(0 == ~e_wl~0); 25933#L456-1 assume !(1 == ~wl_pc~0); 25915#L468 assume !(2 == ~wl_pc~0); 25914#L469 assume !(1 == ~c1_pc~0); 25979#L479 assume !(1 == ~c2_pc~0); 25887#L488 assume !(1 == ~wb_pc~0); 25888#L497 assume !(1 == ~e_c~0); 25976#L506-1 assume !(1 == ~e_e~0); 25885#L511-1 assume !(1 == ~e_f~0); 25886#L516-1 assume !(1 == ~e_g~0); 25918#L521-1 assume !(1 == ~e_c~0); 25916#L526-1 assume !(1 == ~e_wl~0); 25917#L668-1 assume !false; 27889#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 28608#L373 [2021-08-27 16:31:42,972 INFO L793 eck$LassoCheckResult]: Loop: 28608#L373 assume !false; 29661#L291 assume 0 == ~wl_st~0; 29505#L304-1 assume 0 == ~wl_st~0;eval_~tmp~0 := eval_#t~nondet7;havoc eval_#t~nondet7; 29641#L317 assume !(0 != eval_~tmp~0); 29655#L313 assume !(0 == ~c1_st~0); 29682#L328 assume !(0 == ~c2_st~0); 29672#L343 assume !(0 == ~wb_st~0); 29665#L358 assume !(0 == ~r_st~0); 28608#L373 [2021-08-27 16:31:42,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:42,973 INFO L82 PathProgramCache]: Analyzing trace with hash 823350777, now seen corresponding path program 2 times [2021-08-27 16:31:42,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:42,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723129742] [2021-08-27 16:31:42,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:42,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:42,985 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:31:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:42,995 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:31:42,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:42,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1280783410, now seen corresponding path program 1 times [2021-08-27 16:31:42,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:42,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383156154] [2021-08-27 16:31:42,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:42,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:42,998 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:31:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:43,002 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:31:43,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:43,002 INFO L82 PathProgramCache]: Analyzing trace with hash 361828906, now seen corresponding path program 1 times [2021-08-27 16:31:43,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:43,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144180096] [2021-08-27 16:31:43,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:43,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:43,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:43,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:43,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144180096] [2021-08-27 16:31:43,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144180096] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:43,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:43,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:31:43,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668496013] [2021-08-27 16:31:43,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:31:43,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:31:43,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:31:43,065 INFO L87 Difference]: Start difference. First operand 4973 states and 7999 transitions. cyclomatic complexity: 3062 Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-08-27 16:31:43,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:31:43,118 INFO L93 Difference]: Finished difference Result 7644 states and 12212 transitions. [2021-08-27 16:31:43,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:31:43,119 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7644 states and 12212 transitions. [2021-08-27 16:31:43,156 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 2986 [2021-08-27 16:31:43,207 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7644 states to 7644 states and 12212 transitions. [2021-08-27 16:31:43,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3054 [2021-08-27 16:31:43,212 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3054 [2021-08-27 16:31:43,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7644 states and 12212 transitions. [2021-08-27 16:31:43,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 16:31:43,214 INFO L681 BuchiCegarLoop]: Abstraction has 7644 states and 12212 transitions. [2021-08-27 16:31:43,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7644 states and 12212 transitions. [2021-08-27 16:31:43,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7644 to 7644. [2021-08-27 16:31:43,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7644 states, 7644 states have (on average 1.597592883307169) internal successors, (12212), 7643 states have internal predecessors, (12212), 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) [2021-08-27 16:31:43,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7644 states to 7644 states and 12212 transitions. [2021-08-27 16:31:43,420 INFO L704 BuchiCegarLoop]: Abstraction has 7644 states and 12212 transitions. [2021-08-27 16:31:43,420 INFO L587 BuchiCegarLoop]: Abstraction has 7644 states and 12212 transitions. [2021-08-27 16:31:43,420 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-08-27 16:31:43,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7644 states and 12212 transitions. [2021-08-27 16:31:43,448 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 2986 [2021-08-27 16:31:43,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:31:43,448 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:31:43,449 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] [2021-08-27 16:31:43,449 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:31:43,449 INFO L791 eck$LassoCheckResult]: Stem: 38580#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 38453#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 38454#L400 assume !(1 == ~c_req_up~0); 38533#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 38449#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 38373#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 38374#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 38549#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 38550#L431-1 assume !(0 == ~e_f~0); 38413#L436-1 assume !(0 == ~e_g~0); 38414#L441-1 assume !(0 == ~e_e~0); 38599#L446-1 assume !(0 == ~e_c~0); 38598#L451-1 assume !(0 == ~e_wl~0); 38561#L456-1 assume !(1 == ~wl_pc~0); 38543#L468 assume !(2 == ~wl_pc~0); 38542#L469 assume !(1 == ~c1_pc~0); 38593#L479 assume !(1 == ~c2_pc~0); 38514#L488 assume !(1 == ~wb_pc~0); 38515#L497 assume !(1 == ~e_c~0); 38590#L506-1 assume !(1 == ~e_e~0); 38512#L511-1 assume !(1 == ~e_f~0); 38513#L516-1 assume !(1 == ~e_g~0); 38546#L521-1 assume !(1 == ~e_c~0); 38547#L526-1 assume !(1 == ~e_wl~0); 39891#L668-1 assume !false; 39892#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 43473#L373 [2021-08-27 16:31:43,449 INFO L793 eck$LassoCheckResult]: Loop: 43473#L373 assume !false; 43646#L291 assume 0 == ~wl_st~0; 43587#L304-1 assume 0 == ~wl_st~0;eval_~tmp~0 := eval_#t~nondet7;havoc eval_#t~nondet7; 43581#L317 assume !(0 != eval_~tmp~0); 43593#L313 assume 0 == ~c1_st~0;eval_~tmp___0~0 := eval_#t~nondet8;havoc eval_#t~nondet8; 43225#L332 assume !(0 != eval_~tmp___0~0); 43703#L328 assume !(0 == ~c2_st~0); 43669#L343 assume !(0 == ~wb_st~0); 43665#L358 assume !(0 == ~r_st~0); 43473#L373 [2021-08-27 16:31:43,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:43,450 INFO L82 PathProgramCache]: Analyzing trace with hash 823350777, now seen corresponding path program 3 times [2021-08-27 16:31:43,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:43,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562207103] [2021-08-27 16:31:43,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:43,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:43,457 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:31:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:43,467 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:31:43,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:43,469 INFO L82 PathProgramCache]: Analyzing trace with hash 998807808, now seen corresponding path program 1 times [2021-08-27 16:31:43,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:43,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062845984] [2021-08-27 16:31:43,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:43,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:43,473 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:31:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:43,475 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:31:43,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:43,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1718978040, now seen corresponding path program 1 times [2021-08-27 16:31:43,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:43,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607419364] [2021-08-27 16:31:43,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:43,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:43,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:43,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:43,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607419364] [2021-08-27 16:31:43,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607419364] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:43,507 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:43,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:31:43,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868481344] [2021-08-27 16:31:43,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:31:43,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:31:43,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:31:43,556 INFO L87 Difference]: Start difference. First operand 7644 states and 12212 transitions. cyclomatic complexity: 4604 Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-08-27 16:31:43,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:31:43,669 INFO L93 Difference]: Finished difference Result 12085 states and 19155 transitions. [2021-08-27 16:31:43,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:31:43,670 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12085 states and 19155 transitions. [2021-08-27 16:31:43,722 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 4738 [2021-08-27 16:31:43,764 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12085 states to 12085 states and 19155 transitions. [2021-08-27 16:31:43,765 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4860 [2021-08-27 16:31:43,770 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4860 [2021-08-27 16:31:43,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12085 states and 19155 transitions. [2021-08-27 16:31:43,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 16:31:43,774 INFO L681 BuchiCegarLoop]: Abstraction has 12085 states and 19155 transitions. [2021-08-27 16:31:43,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12085 states and 19155 transitions. [2021-08-27 16:31:43,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12085 to 12085. [2021-08-27 16:31:44,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12085 states, 12085 states have (on average 1.5850227554820024) internal successors, (19155), 12084 states have internal predecessors, (19155), 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) [2021-08-27 16:31:44,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12085 states to 12085 states and 19155 transitions. [2021-08-27 16:31:44,076 INFO L704 BuchiCegarLoop]: Abstraction has 12085 states and 19155 transitions. [2021-08-27 16:31:44,076 INFO L587 BuchiCegarLoop]: Abstraction has 12085 states and 19155 transitions. [2021-08-27 16:31:44,076 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-08-27 16:31:44,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12085 states and 19155 transitions. [2021-08-27 16:31:44,110 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 4738 [2021-08-27 16:31:44,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:31:44,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:31:44,111 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] [2021-08-27 16:31:44,111 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:31:44,111 INFO L791 eck$LassoCheckResult]: Stem: 58355#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 58191#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 58192#L400 assume !(1 == ~c_req_up~0); 58280#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 58185#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 58186#L416-1 assume !(1 == ~c2_i~0);~c2_st~0 := 2; 58314#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 58315#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 58066#L431-1 assume !(0 == ~e_f~0); 58067#L436-1 assume !(0 == ~e_g~0); 58363#L441-1 assume !(0 == ~e_e~0); 58364#L446-1 assume !(0 == ~e_c~0); 58269#L451-1 assume !(0 == ~e_wl~0); 58270#L456-1 assume !(1 == ~wl_pc~0); 58383#L468 assume !(2 == ~wl_pc~0); 58382#L469 assume !(1 == ~c1_pc~0); 58258#L479 assume !(1 == ~c2_pc~0); 58260#L488 assume !(1 == ~wb_pc~0); 60889#L497 assume !(1 == ~e_c~0); 60888#L506-1 assume !(1 == ~e_e~0); 60887#L511-1 assume !(1 == ~e_f~0); 60886#L516-1 assume !(1 == ~e_g~0); 60885#L521-1 assume !(1 == ~e_c~0); 60884#L526-1 assume !(1 == ~e_wl~0); 60882#L668-1 assume !false; 60883#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 65866#L373 [2021-08-27 16:31:44,112 INFO L793 eck$LassoCheckResult]: Loop: 65866#L373 assume !false; 65864#L291 assume 0 == ~wl_st~0; 65774#L304-1 assume 0 == ~wl_st~0;eval_~tmp~0 := eval_#t~nondet7;havoc eval_#t~nondet7; 65771#L317 assume !(0 != eval_~tmp~0); 65862#L313 assume 0 == ~c1_st~0;eval_~tmp___0~0 := eval_#t~nondet8;havoc eval_#t~nondet8; 65885#L332 assume !(0 != eval_~tmp___0~0); 65883#L328 assume !(0 == ~c2_st~0); 65875#L343 assume !(0 == ~wb_st~0); 65871#L358 assume !(0 == ~r_st~0); 65866#L373 [2021-08-27 16:31:44,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:44,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1246052603, now seen corresponding path program 1 times [2021-08-27 16:31:44,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:44,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368843083] [2021-08-27 16:31:44,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:44,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:44,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:44,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:44,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368843083] [2021-08-27 16:31:44,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368843083] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:44,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:44,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:31:44,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881470594] [2021-08-27 16:31:44,129 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 16:31:44,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:44,130 INFO L82 PathProgramCache]: Analyzing trace with hash 998807808, now seen corresponding path program 2 times [2021-08-27 16:31:44,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:44,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326530557] [2021-08-27 16:31:44,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:44,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:44,133 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:31:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:44,135 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:31:44,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:31:44,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:31:44,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:31:44,183 INFO L87 Difference]: Start difference. First operand 12085 states and 19155 transitions. cyclomatic complexity: 7106 Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-08-27 16:31:44,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:31:44,227 INFO L93 Difference]: Finished difference Result 12033 states and 19068 transitions. [2021-08-27 16:31:44,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:31:44,228 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12033 states and 19068 transitions. [2021-08-27 16:31:44,340 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 4738 [2021-08-27 16:31:44,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12033 states to 12033 states and 19068 transitions. [2021-08-27 16:31:44,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4810 [2021-08-27 16:31:44,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4810 [2021-08-27 16:31:44,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12033 states and 19068 transitions. [2021-08-27 16:31:44,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 16:31:44,384 INFO L681 BuchiCegarLoop]: Abstraction has 12033 states and 19068 transitions. [2021-08-27 16:31:44,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12033 states and 19068 transitions. [2021-08-27 16:31:44,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12033 to 12033. [2021-08-27 16:31:44,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12033 states, 12033 states have (on average 1.5846422338568935) internal successors, (19068), 12032 states have internal predecessors, (19068), 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) [2021-08-27 16:31:44,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12033 states to 12033 states and 19068 transitions. [2021-08-27 16:31:44,629 INFO L704 BuchiCegarLoop]: Abstraction has 12033 states and 19068 transitions. [2021-08-27 16:31:44,630 INFO L587 BuchiCegarLoop]: Abstraction has 12033 states and 19068 transitions. [2021-08-27 16:31:44,630 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-08-27 16:31:44,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12033 states and 19068 transitions. [2021-08-27 16:31:44,718 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 4738 [2021-08-27 16:31:44,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:31:44,718 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:31:44,719 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] [2021-08-27 16:31:44,719 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:31:44,719 INFO L791 eck$LassoCheckResult]: Stem: 82481#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 82320#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 82321#L400 assume !(1 == ~c_req_up~0); 82410#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 82460#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 82228#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 82229#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 82427#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 82428#L431-1 assume !(0 == ~e_f~0); 82274#L436-1 assume !(0 == ~e_g~0); 82275#L441-1 assume !(0 == ~e_e~0); 82503#L446-1 assume !(0 == ~e_c~0); 82502#L451-1 assume !(0 == ~e_wl~0); 82447#L456-1 assume !(1 == ~wl_pc~0); 82423#L468 assume !(2 == ~wl_pc~0); 82422#L469 assume !(1 == ~c1_pc~0); 82497#L479 assume !(1 == ~c2_pc~0); 82386#L488 assume !(1 == ~wb_pc~0); 82387#L497 assume !(1 == ~e_c~0); 82494#L506-1 assume !(1 == ~e_e~0); 82384#L511-1 assume !(1 == ~e_f~0); 82385#L516-1 assume !(1 == ~e_g~0); 82426#L521-1 assume !(1 == ~e_c~0); 82424#L526-1 assume !(1 == ~e_wl~0); 82425#L668-1 assume !false; 85530#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 87949#L373 [2021-08-27 16:31:44,719 INFO L793 eck$LassoCheckResult]: Loop: 87949#L373 assume !false; 91065#L291 assume 0 == ~wl_st~0; 91063#L304-1 assume 0 == ~wl_st~0;eval_~tmp~0 := eval_#t~nondet7;havoc eval_#t~nondet7; 91010#L317 assume !(0 != eval_~tmp~0); 91057#L313 assume 0 == ~c1_st~0;eval_~tmp___0~0 := eval_#t~nondet8;havoc eval_#t~nondet8; 91355#L332 assume !(0 != eval_~tmp___0~0); 91107#L328 assume 0 == ~c2_st~0;eval_~tmp___1~0 := eval_#t~nondet9;havoc eval_#t~nondet9; 91103#L347 assume !(0 != eval_~tmp___1~0); 91100#L343 assume !(0 == ~wb_st~0); 91097#L358 assume !(0 == ~r_st~0); 87949#L373 [2021-08-27 16:31:44,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:44,720 INFO L82 PathProgramCache]: Analyzing trace with hash 823350777, now seen corresponding path program 4 times [2021-08-27 16:31:44,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:44,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760244124] [2021-08-27 16:31:44,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:44,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:44,726 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:31:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:44,746 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:31:44,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:44,747 INFO L82 PathProgramCache]: Analyzing trace with hash 896651005, now seen corresponding path program 1 times [2021-08-27 16:31:44,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:44,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632756295] [2021-08-27 16:31:44,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:44,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:44,750 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:31:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:44,753 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:31:44,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:44,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1750331659, now seen corresponding path program 1 times [2021-08-27 16:31:44,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:44,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348317906] [2021-08-27 16:31:44,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:44,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:31:44,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:31:44,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:31:44,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348317906] [2021-08-27 16:31:44,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348317906] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:31:44,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:31:44,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:31:44,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973272875] [2021-08-27 16:31:44,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:31:44,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:31:44,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:31:44,972 INFO L87 Difference]: Start difference. First operand 12033 states and 19068 transitions. cyclomatic complexity: 7071 Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2021-08-27 16:31:45,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:31:45,061 INFO L93 Difference]: Finished difference Result 18669 states and 29460 transitions. [2021-08-27 16:31:45,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:31:45,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18669 states and 29460 transitions. [2021-08-27 16:31:45,147 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 7424 [2021-08-27 16:31:45,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18669 states to 18669 states and 29460 transitions. [2021-08-27 16:31:45,218 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7496 [2021-08-27 16:31:45,225 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7496 [2021-08-27 16:31:45,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18669 states and 29460 transitions. [2021-08-27 16:31:45,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 16:31:45,238 INFO L681 BuchiCegarLoop]: Abstraction has 18669 states and 29460 transitions. [2021-08-27 16:31:45,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18669 states and 29460 transitions. [2021-08-27 16:31:45,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18669 to 18549. [2021-08-27 16:31:45,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18549 states, 18549 states have (on average 1.581756428918001) internal successors, (29340), 18548 states have internal predecessors, (29340), 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) [2021-08-27 16:31:45,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18549 states to 18549 states and 29340 transitions. [2021-08-27 16:31:45,636 INFO L704 BuchiCegarLoop]: Abstraction has 18549 states and 29340 transitions. [2021-08-27 16:31:45,636 INFO L587 BuchiCegarLoop]: Abstraction has 18549 states and 29340 transitions. [2021-08-27 16:31:45,636 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-08-27 16:31:45,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18549 states and 29340 transitions. [2021-08-27 16:31:45,687 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 7376 [2021-08-27 16:31:45,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:31:45,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:31:45,688 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] [2021-08-27 16:31:45,688 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:31:45,688 INFO L791 eck$LassoCheckResult]: Stem: 113185#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 113028#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 113029#L400 assume !(1 == ~c_req_up~0); 113112#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 113021#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 112945#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 112946#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 113128#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 113129#L431-1 assume !(0 == ~e_f~0); 112986#L436-1 assume !(0 == ~e_g~0); 112987#L441-1 assume !(0 == ~e_e~0); 113206#L446-1 assume !(0 == ~e_c~0); 113205#L451-1 assume !(0 == ~e_wl~0); 113147#L456-1 assume !(1 == ~wl_pc~0); 113122#L468 assume !(2 == ~wl_pc~0); 113121#L469 assume !(1 == ~c1_pc~0); 113200#L479 assume !(1 == ~c2_pc~0); 113088#L488 assume !(1 == ~wb_pc~0); 113089#L497 assume !(1 == ~e_c~0); 113197#L506-1 assume !(1 == ~e_e~0); 113086#L511-1 assume !(1 == ~e_f~0); 113087#L516-1 assume !(1 == ~e_g~0); 113125#L521-1 assume !(1 == ~e_c~0); 113126#L526-1 assume !(1 == ~e_wl~0); 118221#L668-1 assume !false; 118222#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 124261#L373 [2021-08-27 16:31:45,689 INFO L793 eck$LassoCheckResult]: Loop: 124261#L373 assume !false; 125942#L291 assume 0 == ~wl_st~0; 125940#L304-1 assume 0 == ~wl_st~0;eval_~tmp~0 := eval_#t~nondet7;havoc eval_#t~nondet7; 124456#L317 assume !(0 != eval_~tmp~0); 125544#L313 assume 0 == ~c1_st~0;eval_~tmp___0~0 := eval_#t~nondet8;havoc eval_#t~nondet8; 125542#L332 assume !(0 != eval_~tmp___0~0); 125537#L328 assume 0 == ~c2_st~0;eval_~tmp___1~0 := eval_#t~nondet9;havoc eval_#t~nondet9; 125526#L347 assume !(0 != eval_~tmp___1~0); 125535#L343 assume 0 == ~wb_st~0;eval_~tmp___2~0 := eval_#t~nondet10;havoc eval_#t~nondet10; 125762#L362 assume !(0 != eval_~tmp___2~0); 125775#L358 assume !(0 == ~r_st~0); 124261#L373 [2021-08-27 16:31:45,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:45,689 INFO L82 PathProgramCache]: Analyzing trace with hash 823350777, now seen corresponding path program 5 times [2021-08-27 16:31:45,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:45,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677276076] [2021-08-27 16:31:45,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:45,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:45,697 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:31:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:45,708 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:31:45,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:45,709 INFO L82 PathProgramCache]: Analyzing trace with hash 2026342965, now seen corresponding path program 1 times [2021-08-27 16:31:45,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:45,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605240068] [2021-08-27 16:31:45,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:45,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:45,714 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:31:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:45,718 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:31:45,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:31:45,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1574259005, now seen corresponding path program 1 times [2021-08-27 16:31:45,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:31:45,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848712916] [2021-08-27 16:31:45,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:31:45,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:31:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:45,726 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:31:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:31:45,741 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:31:47,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:31:47 BoogieIcfgContainer [2021-08-27 16:31:47,290 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:31:47,290 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:31:47,290 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:31:47,291 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:31:47,291 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:31:34" (3/4) ... [2021-08-27 16:31:47,293 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:31:47,329 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:31:47,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:31:47,330 INFO L168 Benchmark]: Toolchain (without parser) took 13610.19 ms. Allocated memory was 69.2 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 49.7 MB in the beginning and 935.6 MB in the end (delta: -885.9 MB). Peak memory consumption was 260.8 MB. Max. memory is 16.1 GB. [2021-08-27 16:31:47,331 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 69.2 MB. Free memory was 50.5 MB in the beginning and 50.4 MB in the end (delta: 84.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:31:47,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.63 ms. Allocated memory is still 69.2 MB. Free memory was 49.5 MB in the beginning and 48.9 MB in the end (delta: 649.0 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 16:31:47,331 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.58 ms. Allocated memory is still 69.2 MB. Free memory was 48.9 MB in the beginning and 46.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:31:47,332 INFO L168 Benchmark]: Boogie Preprocessor took 49.46 ms. Allocated memory is still 69.2 MB. Free memory was 46.5 MB in the beginning and 44.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:31:47,332 INFO L168 Benchmark]: RCFGBuilder took 684.00 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 44.5 MB in the beginning and 67.5 MB in the end (delta: -23.1 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2021-08-27 16:31:47,332 INFO L168 Benchmark]: BuchiAutomizer took 12450.81 ms. Allocated memory was 90.2 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 67.5 MB in the beginning and 938.8 MB in the end (delta: -871.3 MB). Peak memory consumption was 371.8 MB. Max. memory is 16.1 GB. [2021-08-27 16:31:47,333 INFO L168 Benchmark]: Witness Printer took 38.81 ms. Allocated memory is still 1.2 GB. Free memory was 938.8 MB in the beginning and 935.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:31:47,334 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 69.2 MB. Free memory was 50.5 MB in the beginning and 50.4 MB in the end (delta: 84.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 320.63 ms. Allocated memory is still 69.2 MB. Free memory was 49.5 MB in the beginning and 48.9 MB in the end (delta: 649.0 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.58 ms. Allocated memory is still 69.2 MB. Free memory was 48.9 MB in the beginning and 46.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.46 ms. Allocated memory is still 69.2 MB. Free memory was 46.5 MB in the beginning and 44.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 684.00 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 44.5 MB in the beginning and 67.5 MB in the end (delta: -23.1 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 12450.81 ms. Allocated memory was 90.2 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 67.5 MB in the beginning and 938.8 MB in the end (delta: -871.3 MB). Peak memory consumption was 371.8 MB. Max. memory is 16.1 GB. * Witness Printer took 38.81 ms. Allocated memory is still 1.2 GB. Free memory was 938.8 MB in the beginning and 935.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 17 terminating modules (14 trivial, 3 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * e_c + 1 and consists of 3 locations. One deterministic module has affine ranking function -1 * e_c + 1 and consists of 3 locations. One deterministic module has affine ranking function 3 + -2 * e_e and consists of 3 locations. 14 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 18549 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.4s and 15 iterations. TraceHistogramMax:1. Analysis of lassos took 7.7s. Construction of modules took 0.3s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 12. Automata minimization 1493.3ms AutomataMinimizationTime, 17 MinimizatonAttempts, 885 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.7s Buchi closure took 0.0s. Biggest automaton had 18549 states and ocurred in iteration 14. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4153 SDtfs, 4007 SDslu, 2207 SDs, 0 SdLazy, 345 SolverSat, 113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 374.5ms Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc3 concLT0 SILN1 SILU0 SILI5 SILT3 lasso0 LassoPreprocessingBenchmarks: Lassos: inital81 mio100 ax100 hnf100 lsp11 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq182 hnf98 smp100 dnf190 smp75 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 19 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 290]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=30144} State at position 1 is {wb_st=0, NULL=0, NULL=30144, c2_st=0, tmp=0, e_c=2, e_e=2, e_p_in=0, kernel_st=1, t_b=0, tmp___2=0, wb_pc=0, tmp___0=0, wb_i=1, c_t=0, NULL=0, NULL=0, c=0, wl_st=0, c2_pc=0, r_i=0, e_f=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27110088=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f0192eb=0, NULL=0, r_st=2, __retres1=0, p_out=0, NULL=30145, processed=0, \result=0, wl_pc=0, e_wl=2, tmp___1=0, data=0, p_in=0, tmp___3=0, c_req_up=0, NULL=30147, wl_i=1, NULL=0, c1_st=0, NULL=30146, c1_i=1, c2_i=1, d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59a0443c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20fc3dad=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7699d62f=0, e_g=2, c1_pc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 290]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L20] int c ; [L21] int c_t ; [L22] int c_req_up ; [L23] int p_in ; [L24] int p_out ; [L25] int wl_st ; [L26] int c1_st ; [L27] int c2_st ; [L28] int wb_st ; [L29] int r_st ; [L30] int wl_i ; [L31] int c1_i ; [L32] int c2_i ; [L33] int wb_i ; [L34] int r_i ; [L35] int wl_pc ; [L36] int c1_pc ; [L37] int c2_pc ; [L38] int wb_pc ; [L39] int e_e ; [L40] int e_f ; [L41] int e_g ; [L42] int e_c ; [L43] int e_p_in ; [L44] int e_wl ; [L50] int d ; [L51] int data ; [L52] int processed ; [L53] static int t_b ; [L685] int __retres1 ; [L689] e_wl = 2 [L690] e_c = e_wl [L691] e_g = e_c [L692] e_f = e_g [L693] e_e = e_f [L694] wl_pc = 0 [L695] c1_pc = 0 [L696] c2_pc = 0 [L697] wb_pc = 0 [L698] wb_i = 1 [L699] c2_i = wb_i [L700] c1_i = c2_i [L701] wl_i = c1_i [L702] r_i = 0 [L703] c_req_up = 0 [L704] d = 0 [L705] c = 0 [L396] int kernel_st ; [L399] kernel_st = 0 [L400] COND FALSE !((int )c_req_up == 1) [L411] COND TRUE (int )wl_i == 1 [L412] wl_st = 0 [L416] COND TRUE (int )c1_i == 1 [L417] c1_st = 0 [L421] COND TRUE (int )c2_i == 1 [L422] c2_st = 0 [L426] COND TRUE (int )wb_i == 1 [L427] wb_st = 0 [L431] COND FALSE !((int )r_i == 1) [L434] r_st = 2 [L436] COND FALSE !((int )e_f == 0) [L441] COND FALSE !((int )e_g == 0) [L446] COND FALSE !((int )e_e == 0) [L451] COND FALSE !((int )e_c == 0) [L456] COND FALSE !((int )e_wl == 0) [L461] COND FALSE !((int )wl_pc == 1) [L469] COND FALSE !((int )wl_pc == 2) [L479] COND FALSE !((int )c1_pc == 1) [L488] COND FALSE !((int )c2_pc == 1) [L497] COND FALSE !((int )wb_pc == 1) [L506] COND FALSE !((int )e_c == 1) [L511] COND FALSE !((int )e_e == 1) [L516] COND FALSE !((int )e_f == 1) [L521] COND FALSE !((int )e_g == 1) [L526] COND FALSE !((int )e_c == 1) [L531] COND FALSE !((int )e_wl == 1) [L537] COND TRUE 1 [L540] kernel_st = 1 [L282] int tmp ; [L283] int tmp___0 ; [L284] int tmp___1 ; [L285] int tmp___2 ; [L286] int tmp___3 ; Loop: [L290] COND TRUE 1 [L292] COND TRUE (int )wl_st == 0 [L313] COND TRUE (int )wl_st == 0 [L315] tmp = __VERIFIER_nondet_int() [L317] COND FALSE !(\read(tmp)) [L328] COND TRUE (int )c1_st == 0 [L330] tmp___0 = __VERIFIER_nondet_int() [L332] COND FALSE !(\read(tmp___0)) [L343] COND TRUE (int )c2_st == 0 [L345] tmp___1 = __VERIFIER_nondet_int() [L347] COND FALSE !(\read(tmp___1)) [L358] COND TRUE (int )wb_st == 0 [L360] tmp___2 = __VERIFIER_nondet_int() [L362] COND FALSE !(\read(tmp___2)) [L373] COND FALSE !((int )r_st == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:31:47,378 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...