./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.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/product-lines/minepump_spec3_productSimulator.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 a799124555890ca53ef8c243a58e7f790fa6b6f5 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 16:13:25,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:13:25,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:13:25,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:13:25,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:13:25,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:13:25,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:13:25,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:13:25,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:13:25,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:13:25,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:13:25,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:13:25,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:13:25,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:13:25,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:13:25,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:13:25,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:13:25,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:13:25,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:13:25,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:13:25,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:13:25,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:13:25,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:13:25,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:13:25,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:13:25,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:13:25,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:13:25,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:13:25,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:13:25,117 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:13:25,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:13:25,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:13:25,119 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:13:25,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:13:25,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:13:25,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:13:25,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:13:25,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:13:25,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:13:25,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:13:25,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:13:25,125 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:13:25,148 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:13:25,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:13:25,149 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:13:25,149 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:13:25,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:13:25,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:13:25,151 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:13:25,151 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:13:25,151 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:13:25,151 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:13:25,152 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:13:25,152 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:13:25,152 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:13:25,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:13:25,152 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:13:25,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:13:25,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:13:25,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:13:25,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:13:25,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:13:25,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:13:25,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:13:25,154 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:13:25,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:13:25,154 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:13:25,154 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:13:25,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:13:25,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:13:25,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:13:25,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:13:25,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:13:25,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:13:25,156 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:13:25,156 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a799124555890ca53ef8c243a58e7f790fa6b6f5 [2021-08-27 16:13:25,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:13:25,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:13:25,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:13:25,407 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:13:25,407 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:13:25,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c [2021-08-27 16:13:25,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef64305c1/d6fb903bf01c4e7185b81f76704f282d/FLAG654c7dfda [2021-08-27 16:13:25,852 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:13:25,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c [2021-08-27 16:13:25,867 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef64305c1/d6fb903bf01c4e7185b81f76704f282d/FLAG654c7dfda [2021-08-27 16:13:25,878 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef64305c1/d6fb903bf01c4e7185b81f76704f282d [2021-08-27 16:13:25,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:13:25,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:13:25,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:13:25,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:13:25,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:13:25,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:13:25" (1/1) ... [2021-08-27 16:13:25,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e612ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:25, skipping insertion in model container [2021-08-27 16:13:25,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:13:25" (1/1) ... [2021-08-27 16:13:25,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:13:25,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:13:26,170 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/product-lines/minepump_spec3_productSimulator.cil.c[19705,19718] [2021-08-27 16:13:26,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:13:26,191 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:13:26,221 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/product-lines/minepump_spec3_productSimulator.cil.c[19705,19718] [2021-08-27 16:13:26,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:13:26,236 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:13:26,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:26 WrapperNode [2021-08-27 16:13:26,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:13:26,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:13:26,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:13:26,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:13:26,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:26" (1/1) ... [2021-08-27 16:13:26,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:26" (1/1) ... [2021-08-27 16:13:26,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:13:26,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:13:26,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:13:26,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:13:26,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:26" (1/1) ... [2021-08-27 16:13:26,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:26" (1/1) ... [2021-08-27 16:13:26,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:26" (1/1) ... [2021-08-27 16:13:26,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:26" (1/1) ... [2021-08-27 16:13:26,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:26" (1/1) ... [2021-08-27 16:13:26,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:26" (1/1) ... [2021-08-27 16:13:26,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:26" (1/1) ... [2021-08-27 16:13:26,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:13:26,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:13:26,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:13:26,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:13:26,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:26" (1/1) ... [2021-08-27 16:13:26,374 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:13:26,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:13:26,401 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 16:13:26,437 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 16:13:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:13:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:13:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:13:26,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:13:27,788 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:13:27,788 INFO L299 CfgBuilder]: Removed 906 assume(true) statements. [2021-08-27 16:13:27,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:13:27 BoogieIcfgContainer [2021-08-27 16:13:27,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:13:27,792 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:13:27,792 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:13:27,794 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:13:27,795 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:13:27,795 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:13:25" (1/3) ... [2021-08-27 16:13:27,796 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@109906f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:13:27, skipping insertion in model container [2021-08-27 16:13:27,796 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:13:27,796 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:26" (2/3) ... [2021-08-27 16:13:27,796 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@109906f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:13:27, skipping insertion in model container [2021-08-27 16:13:27,796 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:13:27,797 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:13:27" (3/3) ... [2021-08-27 16:13:27,797 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2021-08-27 16:13:27,830 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:13:27,831 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:13:27,831 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:13:27,831 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:13:27,831 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:13:27,831 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:13:27,831 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:13:27,831 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:13:27,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 473 states, 472 states have (on average 1.5677966101694916) internal successors, (740), 472 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:13:27,883 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 309 [2021-08-27 16:13:27,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:13:27,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:13:27,889 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:13:27,889 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:13:27,889 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:13:27,890 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 473 states, 472 states have (on average 1.5677966101694916) internal successors, (740), 472 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:13:27,902 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 309 [2021-08-27 16:13:27,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:13:27,902 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:13:27,903 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:13:27,903 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:13:27,907 INFO L791 eck$LassoCheckResult]: Stem: 460#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(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(13);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string83.base, #t~string83.offset, 1);call write~init~int(77, #t~string83.base, 1 + #t~string83.offset, 1);call write~init~int(101, #t~string83.base, 2 + #t~string83.offset, 1);call write~init~int(116, #t~string83.base, 3 + #t~string83.offset, 1);call write~init~int(104, #t~string83.base, 4 + #t~string83.offset, 1);call write~init~int(58, #t~string83.base, 5 + #t~string83.offset, 1);call write~init~int(0, #t~string83.base, 6 + #t~string83.offset, 1);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string85.base, #t~string85.offset, 1);call write~init~int(82, #t~string85.base, 1 + #t~string85.offset, 1);call write~init~int(73, #t~string85.base, 2 + #t~string85.offset, 1);call write~init~int(84, #t~string85.base, 3 + #t~string85.offset, 1);call write~init~int(0, #t~string85.base, 4 + #t~string85.offset, 1);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string87.base, #t~string87.offset, 1);call write~init~int(75, #t~string87.base, 1 + #t~string87.offset, 1);call write~init~int(0, #t~string87.base, 2 + #t~string87.offset, 1);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string89.base, #t~string89.offset, 1);call write~init~int(0, #t~string89.base, 1 + #t~string89.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 388#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 186#L971true havoc select_features_#t~ret71, select_features_#t~ret72, select_features_#t~ret73, select_features_#t~ret74, select_features_#t~ret75, select_features_#t~ret76;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 231#L946true select_features_#t~ret71 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret71;havoc select_features_#t~ret71;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 315#L946-1true select_features_#t~ret72 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret72;havoc select_features_#t~ret72;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 32#L946-2true select_features_#t~ret73 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret73;havoc select_features_#t~ret73;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 87#L946-3true select_features_#t~ret74 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret74;havoc select_features_#t~ret74;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 120#L946-4true select_features_#t~ret75 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret75;havoc select_features_#t~ret75;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 430#L946-5true select_features_#t~ret76 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret76;havoc select_features_#t~ret76; 209#L963true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~9; 108#L979true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 75#L498true assume 0 != main_~tmp~3; 29#L471true havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 333#L1001-1true [2021-08-27 16:13:27,907 INFO L793 eck$LassoCheckResult]: Loop: 333#L1001-1true assume !false; 116#L533true assume test_~splverifierCounter~0 < 4; 318#L534true test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 362#L542true assume !(0 != test_~tmp~4); 166#L542-1true test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 159#L552true assume !(0 != test_~tmp___0~0); 182#L552-1true test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 431#L562true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet46;havoc test_#t~nondet46; 49#L574true assume !(0 != test_~tmp___1~0); 121#L574-1true assume !(0 != ~pumpRunning~0); 129#L615true assume !(0 != ~systemActive~0); 442#L622true havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 461#L1072-10true __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 450#L995true assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 333#L1001-1true [2021-08-27 16:13:27,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:13:27,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 1 times [2021-08-27 16:13:27,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:13:27,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729482802] [2021-08-27 16:13:27,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:13:27,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:13:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:28,081 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:13:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:28,201 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:13:28,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:13:28,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1299784635, now seen corresponding path program 1 times [2021-08-27 16:13:28,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:13:28,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973563455] [2021-08-27 16:13:28,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:13:28,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:13:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:28,218 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:13:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:28,229 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:13:28,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:13:28,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1167266427, now seen corresponding path program 1 times [2021-08-27 16:13:28,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:13:28,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877290394] [2021-08-27 16:13:28,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:13:28,231 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:13:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:13:28,388 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 16:13:28,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:13:28,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877290394] [2021-08-27 16:13:28,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877290394] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:13:28,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:13:28,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-27 16:13:28,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101707958] [2021-08-27 16:13:28,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:13:28,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 16:13:28,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-27 16:13:28,564 INFO L87 Difference]: Start difference. First operand has 473 states, 472 states have (on average 1.5677966101694916) internal successors, (740), 472 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 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 16:13:28,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:13:28,887 INFO L93 Difference]: Finished difference Result 1451 states and 2244 transitions. [2021-08-27 16:13:28,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 16:13:28,888 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1451 states and 2244 transitions. [2021-08-27 16:13:28,900 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 958 [2021-08-27 16:13:28,913 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1451 states to 1423 states and 2216 transitions. [2021-08-27 16:13:28,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1423 [2021-08-27 16:13:28,916 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1423 [2021-08-27 16:13:28,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1423 states and 2216 transitions. [2021-08-27 16:13:28,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:13:28,923 INFO L681 BuchiCegarLoop]: Abstraction has 1423 states and 2216 transitions. [2021-08-27 16:13:28,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states and 2216 transitions. [2021-08-27 16:13:28,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 515. [2021-08-27 16:13:28,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 515 states have (on average 1.5436893203883495) internal successors, (795), 514 states have internal predecessors, (795), 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 16:13:28,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 795 transitions. [2021-08-27 16:13:28,984 INFO L704 BuchiCegarLoop]: Abstraction has 515 states and 795 transitions. [2021-08-27 16:13:28,984 INFO L587 BuchiCegarLoop]: Abstraction has 515 states and 795 transitions. [2021-08-27 16:13:28,984 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:13:28,985 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 515 states and 795 transitions. [2021-08-27 16:13:28,986 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 344 [2021-08-27 16:13:28,987 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:13:28,987 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:13:28,989 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:13:28,989 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:13:28,989 INFO L791 eck$LassoCheckResult]: Stem: 2411#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(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(13);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string83.base, #t~string83.offset, 1);call write~init~int(77, #t~string83.base, 1 + #t~string83.offset, 1);call write~init~int(101, #t~string83.base, 2 + #t~string83.offset, 1);call write~init~int(116, #t~string83.base, 3 + #t~string83.offset, 1);call write~init~int(104, #t~string83.base, 4 + #t~string83.offset, 1);call write~init~int(58, #t~string83.base, 5 + #t~string83.offset, 1);call write~init~int(0, #t~string83.base, 6 + #t~string83.offset, 1);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string85.base, #t~string85.offset, 1);call write~init~int(82, #t~string85.base, 1 + #t~string85.offset, 1);call write~init~int(73, #t~string85.base, 2 + #t~string85.offset, 1);call write~init~int(84, #t~string85.base, 3 + #t~string85.offset, 1);call write~init~int(0, #t~string85.base, 4 + #t~string85.offset, 1);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string87.base, #t~string87.offset, 1);call write~init~int(75, #t~string87.base, 1 + #t~string87.offset, 1);call write~init~int(0, #t~string87.base, 2 + #t~string87.offset, 1);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string89.base, #t~string89.offset, 1);call write~init~int(0, #t~string89.base, 1 + #t~string89.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2392#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 2243#L971 havoc select_features_#t~ret71, select_features_#t~ret72, select_features_#t~ret73, select_features_#t~ret74, select_features_#t~ret75, select_features_#t~ret76;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2244#L946 select_features_#t~ret71 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret71;havoc select_features_#t~ret71;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2295#L946-1 select_features_#t~ret72 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret72;havoc select_features_#t~ret72;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2008#L946-2 select_features_#t~ret73 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret73;havoc select_features_#t~ret73;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2009#L946-3 select_features_#t~ret74 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret74;havoc select_features_#t~ret74;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2105#L946-4 select_features_#t~ret75 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret75;havoc select_features_#t~ret75;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2162#L946-5 select_features_#t~ret76 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret76;havoc select_features_#t~ret76; 2269#L963 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~9; 2141#L979 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 2083#L498 assume 0 != main_~tmp~3; 2002#L471 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2003#L1001-1 [2021-08-27 16:13:28,994 INFO L793 eck$LassoCheckResult]: Loop: 2003#L1001-1 assume !false; 2154#L533 assume test_~splverifierCounter~0 < 4; 2155#L534 test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 2355#L542 assume !(0 != test_~tmp~4); 2052#L542-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 2217#L552 assume !(0 != test_~tmp___0~0); 2148#L552-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 2236#L562 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet46;havoc test_#t~nondet46; 2034#L574 assume !(0 != test_~tmp___1~0); 2036#L574-1 assume !(0 != ~pumpRunning~0); 2163#L615 assume 0 != ~systemActive~0; 2176#L758 assume !(0 != ~__SELECTED_FEATURE_methaneAlarm~0); 2367#L715-2 assume !(0 != ~__SELECTED_FEATURE_lowWaterSensor~0); 2058#L672-8 assume !(0 != ~__SELECTED_FEATURE_highWaterSensor~0); 1986#L622 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 2408#L1072-10 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 2410#L995 assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 2003#L1001-1 [2021-08-27 16:13:28,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:13:28,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 2 times [2021-08-27 16:13:28,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:13:28,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126061038] [2021-08-27 16:13:28,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:13:28,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:13:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:29,041 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:13:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:29,088 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:13:29,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:13:29,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1493625380, now seen corresponding path program 1 times [2021-08-27 16:13:29,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:13:29,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66621297] [2021-08-27 16:13:29,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:13:29,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:13:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:29,096 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:13:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:29,100 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:13:29,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:13:29,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1931444270, now seen corresponding path program 1 times [2021-08-27 16:13:29,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:13:29,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189311822] [2021-08-27 16:13:29,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:13:29,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:13:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:13:29,157 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 16:13:29,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:13:29,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189311822] [2021-08-27 16:13:29,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189311822] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:13:29,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:13:29,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:13:29,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696041153] [2021-08-27 16:13:29,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:13:29,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 16:13:29,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 16:13:29,275 INFO L87 Difference]: Start difference. First operand 515 states and 795 transitions. cyclomatic complexity: 283 Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:13:29,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:13:29,644 INFO L93 Difference]: Finished difference Result 1966 states and 3082 transitions. [2021-08-27 16:13:29,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 16:13:29,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1966 states and 3082 transitions. [2021-08-27 16:13:29,656 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1343 [2021-08-27 16:13:29,665 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1966 states to 1966 states and 3082 transitions. [2021-08-27 16:13:29,665 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1966 [2021-08-27 16:13:29,667 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1966 [2021-08-27 16:13:29,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1966 states and 3082 transitions. [2021-08-27 16:13:29,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:13:29,669 INFO L681 BuchiCegarLoop]: Abstraction has 1966 states and 3082 transitions. [2021-08-27 16:13:29,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states and 3082 transitions. [2021-08-27 16:13:29,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1017. [2021-08-27 16:13:29,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 1017 states have (on average 1.5427728613569323) internal successors, (1569), 1016 states have internal predecessors, (1569), 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 16:13:29,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1569 transitions. [2021-08-27 16:13:29,694 INFO L704 BuchiCegarLoop]: Abstraction has 1017 states and 1569 transitions. [2021-08-27 16:13:29,694 INFO L587 BuchiCegarLoop]: Abstraction has 1017 states and 1569 transitions. [2021-08-27 16:13:29,694 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 16:13:29,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1017 states and 1569 transitions. [2021-08-27 16:13:29,697 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 688 [2021-08-27 16:13:29,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:13:29,698 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:13:29,699 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:13:29,699 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] [2021-08-27 16:13:29,699 INFO L791 eck$LassoCheckResult]: Stem: 5027#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(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(13);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string83.base, #t~string83.offset, 1);call write~init~int(77, #t~string83.base, 1 + #t~string83.offset, 1);call write~init~int(101, #t~string83.base, 2 + #t~string83.offset, 1);call write~init~int(116, #t~string83.base, 3 + #t~string83.offset, 1);call write~init~int(104, #t~string83.base, 4 + #t~string83.offset, 1);call write~init~int(58, #t~string83.base, 5 + #t~string83.offset, 1);call write~init~int(0, #t~string83.base, 6 + #t~string83.offset, 1);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string85.base, #t~string85.offset, 1);call write~init~int(82, #t~string85.base, 1 + #t~string85.offset, 1);call write~init~int(73, #t~string85.base, 2 + #t~string85.offset, 1);call write~init~int(84, #t~string85.base, 3 + #t~string85.offset, 1);call write~init~int(0, #t~string85.base, 4 + #t~string85.offset, 1);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string87.base, #t~string87.offset, 1);call write~init~int(75, #t~string87.base, 1 + #t~string87.offset, 1);call write~init~int(0, #t~string87.base, 2 + #t~string87.offset, 1);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string89.base, #t~string89.offset, 1);call write~init~int(0, #t~string89.base, 1 + #t~string89.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 4974#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 4758#L971 havoc select_features_#t~ret71, select_features_#t~ret72, select_features_#t~ret73, select_features_#t~ret74, select_features_#t~ret75, select_features_#t~ret76;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 4759#L946 select_features_#t~ret71 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret71;havoc select_features_#t~ret71;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 4820#L946-1 select_features_#t~ret72 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret72;havoc select_features_#t~ret72;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 4507#L946-2 select_features_#t~ret73 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret73;havoc select_features_#t~ret73;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 4508#L946-3 select_features_#t~ret74 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret74;havoc select_features_#t~ret74;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 4608#L946-4 select_features_#t~ret75 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret75;havoc select_features_#t~ret75;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 4665#L946-5 select_features_#t~ret76 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret76;havoc select_features_#t~ret76; 4790#L963 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~9; 4645#L979 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 4584#L498 assume 0 != main_~tmp~3; 4501#L471 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 4502#L1001-1 [2021-08-27 16:13:29,699 INFO L793 eck$LassoCheckResult]: Loop: 4502#L1001-1 assume !false; 5278#L533 assume test_~splverifierCounter~0 < 4; 5279#L534 test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 5429#L542 assume !(0 != test_~tmp~4); 5427#L542-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 5425#L552 assume !(0 != test_~tmp___0~0); 5423#L552-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 5422#L562 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet46;havoc test_#t~nondet46; 5403#L574 assume !(0 != test_~tmp___1~0); 5399#L574-1 assume !(0 != ~pumpRunning~0); 5398#L615 assume 0 != ~systemActive~0; 5391#L758 assume !(0 != ~__SELECTED_FEATURE_methaneAlarm~0); 5395#L715-2 assume !(0 != ~__SELECTED_FEATURE_lowWaterSensor~0); 4559#L672-8 assume !(0 != ~__SELECTED_FEATURE_highWaterSensor~0); 4485#L622 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 5018#L1072-10 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 5022#L995 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~11);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 5020#L1104 __utac_acc__Specification3_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~3 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 5021#L1001 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3); 4502#L1001-1 [2021-08-27 16:13:29,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:13:29,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 3 times [2021-08-27 16:13:29,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:13:29,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410536766] [2021-08-27 16:13:29,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:13:29,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:13:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:29,733 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:13:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:29,768 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:13:29,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:13:29,769 INFO L82 PathProgramCache]: Analyzing trace with hash -854886994, now seen corresponding path program 1 times [2021-08-27 16:13:29,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:13:29,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381367350] [2021-08-27 16:13:29,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:13:29,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:13:29,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:29,774 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:13:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:29,780 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:13:29,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:13:29,782 INFO L82 PathProgramCache]: Analyzing trace with hash -692045276, now seen corresponding path program 1 times [2021-08-27 16:13:29,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:13:29,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336916734] [2021-08-27 16:13:29,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:13:29,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:13:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:29,809 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:13:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:13:29,833 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:14:16,307 WARN L207 SmtUtils]: Spent 46.32 s on a formula simplification. DAG size of input: 553 DAG size of output: 495 [2021-08-27 16:14:57,486 WARN L207 SmtUtils]: Spent 20.61 s on a formula simplification that was a NOOP. DAG size: 444 [2021-08-27 16:14:57,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:14:57 BoogieIcfgContainer [2021-08-27 16:14:57,580 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:14:57,581 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:14:57,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:14:57,581 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:14:57,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:13:27" (3/4) ... [2021-08-27 16:14:57,583 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:14:57,633 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:14:57,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:14:57,634 INFO L168 Benchmark]: Toolchain (without parser) took 91750.14 ms. Allocated memory was 62.9 MB in the beginning and 176.2 MB in the end (delta: 113.2 MB). Free memory was 42.8 MB in the beginning and 48.0 MB in the end (delta: -5.2 MB). Peak memory consumption was 107.6 MB. Max. memory is 16.1 GB. [2021-08-27 16:14:57,634 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 62.9 MB. Free memory is still 45.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:14:57,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.99 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 37.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:14:57,634 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.47 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 37.1 MB in the beginning and 53.9 MB in the end (delta: -16.8 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:14:57,635 INFO L168 Benchmark]: Boogie Preprocessor took 53.47 ms. Allocated memory is still 75.5 MB. Free memory was 53.9 MB in the beginning and 46.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-27 16:14:57,635 INFO L168 Benchmark]: RCFGBuilder took 1421.89 ms. Allocated memory was 75.5 MB in the beginning and 102.8 MB in the end (delta: 27.3 MB). Free memory was 46.5 MB in the beginning and 70.3 MB in the end (delta: -23.8 MB). Peak memory consumption was 33.9 MB. Max. memory is 16.1 GB. [2021-08-27 16:14:57,635 INFO L168 Benchmark]: BuchiAutomizer took 89788.37 ms. Allocated memory was 102.8 MB in the beginning and 176.2 MB in the end (delta: 73.4 MB). Free memory was 70.3 MB in the beginning and 51.1 MB in the end (delta: 19.2 MB). Peak memory consumption was 116.9 MB. Max. memory is 16.1 GB. [2021-08-27 16:14:57,635 INFO L168 Benchmark]: Witness Printer took 51.98 ms. Allocated memory is still 176.2 MB. Free memory was 51.1 MB in the beginning and 48.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:14:57,637 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 62.9 MB. Free memory is still 45.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 352.99 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 37.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.47 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 37.1 MB in the beginning and 53.9 MB in the end (delta: -16.8 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.47 ms. Allocated memory is still 75.5 MB. Free memory was 53.9 MB in the beginning and 46.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1421.89 ms. Allocated memory was 75.5 MB in the beginning and 102.8 MB in the end (delta: 27.3 MB). Free memory was 46.5 MB in the beginning and 70.3 MB in the end (delta: -23.8 MB). Peak memory consumption was 33.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 89788.37 ms. Allocated memory was 102.8 MB in the beginning and 176.2 MB in the end (delta: 73.4 MB). Free memory was 70.3 MB in the beginning and 51.1 MB in the end (delta: 19.2 MB). Peak memory consumption was 116.9 MB. Max. memory is 16.1 GB. * Witness Printer took 51.98 ms. Allocated memory is still 176.2 MB. Free memory was 51.1 MB in the beginning and 48.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 1017 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 89.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 88.7s. Construction of modules took 0.3s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 76.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1857 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 1017 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1814 SDtfs, 7989 SDslu, 8678 SDs, 0 SdLazy, 433 SolverSat, 106 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 396.9ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 532]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=207} State at position 1 is {retValue_acc=1, NULL=0, NULL=221, NULL=0, NULL=207, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26a45f9f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b3f724a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4195f767=0, NULL=0, NULL=0, methaneLevelCritical=0, NULL=0, tmp=0, NULL=0, NULL=233, tmp___1=0, NULL=0, NULL=225, NULL=228, cleanupTimeShifts=4, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c4b8f60=0, NULL=0, waterLevel=1, NULL=0, NULL=0, __SELECTED_FEATURE_methaneAlarm=0, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=220, tmp=1, NULL=0, NULL=0, NULL=0, NULL=217, __SELECTED_FEATURE_stopCommand=0, NULL=231, NULL=223, NULL=214, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26c88b12=0, NULL=230, NULL=218, head=0, NULL=0, NULL=0, tmp=0, NULL=210, NULL=0, NULL=0, choice=51, \result=51, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a3c7431=0, __SELECTED_FEATURE_base=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f8fa88f=0, retValue_acc=0, NULL=212, NULL=0, NULL=224, NULL=0, NULL=0, NULL=216, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73352c1a=0, __GUIDSL_ROOT_PRODUCTION=1, NULL=0, NULL=0, NULL=215, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b22b682=0, NULL=222, NULL=213, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@609ce516=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c0a7793=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d1dc41f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@550f6439=0, tmp___0=1, NULL=226, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67d70817=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, NULL=229, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79cb7130=0, __SELECTED_FEATURE_lowWaterSensor=0, NULL=0, NULL=0, NULL=0, NULL=211, \result=0, retValue_acc=51, __SELECTED_FEATURE_highWaterSensor=0, NULL=219, NULL=208, retValue_acc=1, NULL=227, __SELECTED_FEATURE_methaneQuery=0, NULL=235, tmp___2=0, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=234, NULL=232, tmp___1=0, __SELECTED_FEATURE_startCommand=51, NULL=209} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L408] int cleanupTimeShifts = 4; [L512] int __SELECTED_FEATURE_base ; [L513] int __SELECTED_FEATURE_highWaterSensor ; [L514] int __SELECTED_FEATURE_lowWaterSensor ; [L515] int __SELECTED_FEATURE_methaneQuery ; [L516] int __SELECTED_FEATURE_methaneAlarm ; [L517] int __SELECTED_FEATURE_stopCommand ; [L518] int __SELECTED_FEATURE_startCommand ; [L519] int __GUIDSL_ROOT_PRODUCTION ; [L607] int pumpRunning = 0; [L608] int systemActive = 1; [L1029] int waterLevel = 1; [L1030] int methaneLevelCritical = 0; [L489] int retValue_acc ; [L490] int tmp ; [L970] __GUIDSL_ROOT_PRODUCTION = 1 [L955] __SELECTED_FEATURE_base = 1 [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L956] __SELECTED_FEATURE_highWaterSensor = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L957] __SELECTED_FEATURE_lowWaterSensor = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L958] __SELECTED_FEATURE_methaneQuery = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L959] __SELECTED_FEATURE_methaneAlarm = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L960] __SELECTED_FEATURE_stopCommand = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L961] __SELECTED_FEATURE_startCommand = select_one() [L975] int retValue_acc ; [L978] retValue_acc = __SELECTED_FEATURE_base [L979] return (retValue_acc); [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L523] int splverifierCounter ; [L524] int tmp ; [L525] int tmp___0 ; [L526] int tmp___1 ; [L527] int tmp___2 ; [L530] splverifierCounter = 0 Loop: [L532] COND TRUE 1 [L534] COND TRUE splverifierCounter < 4 [L540] tmp = __VERIFIER_nondet_int() [L542] COND FALSE !(\read(tmp)) [L550] tmp___0 = __VERIFIER_nondet_int() [L552] COND FALSE !(\read(tmp___0)) [L560] tmp___2 = __VERIFIER_nondet_int() [L562] COND FALSE !(\read(tmp___2)) [L572] tmp___1 = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp___1)) [L615] COND FALSE !(\read(pumpRunning)) [L622] COND TRUE \read(systemActive) [L758] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) [L715] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) [L672] COND FALSE !(\read(__SELECTED_FEATURE_highWaterSensor)) [L987] int tmp ; [L988] int tmp___0 ; [L989] int tmp___1 ; [L1068] int retValue_acc ; [L1071] retValue_acc = methaneLevelCritical [L1072] return (retValue_acc); [L993] tmp = isMethaneLevelCritical() [L995] COND FALSE !(\read(tmp)) [L1100] int retValue_acc ; [L1103] retValue_acc = waterLevel [L1104] return (retValue_acc); [L999] tmp___0 = getWaterLevel() [L1001] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:14:57,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...