./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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_spec5_product56.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 7bcd24ea8f621c8db79e853f5aaf064ffcae573e6c1e9f03eb1f84bb0c15fc3c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:55,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:55,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:55,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:55,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:55,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:55,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:55,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:55,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:55,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:55,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:55,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:55,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:55,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:55,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:55,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:55,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:55,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:55,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:55,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:55,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:55,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:55,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:55,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:55,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:55,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:55,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:55,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:55,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:55,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:55,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:55,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:55,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:55,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:55,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:55,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:55,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:55,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:55,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:55,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:55,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:55,155 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:55,182 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:55,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:55,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:55,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:55,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:55,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:55,184 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:55,184 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:55,184 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:55,184 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:55,185 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:55,185 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:55,185 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:55,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:55,186 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:55,186 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:55,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:55,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:55,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:55,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:55,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:55,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:55,187 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:55,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:55,187 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:55,187 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:55,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:55,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:55,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:55,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:55,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:55,189 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:55,189 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bcd24ea8f621c8db79e853f5aaf064ffcae573e6c1e9f03eb1f84bb0c15fc3c [2022-02-21 04:18:55,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:55,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:55,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:55,404 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:55,405 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:55,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c [2022-02-21 04:18:55,446 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/835f4a7fa/43f39ec6fe9d435b9791ec8200a7ac92/FLAGb4f21dbb2 [2022-02-21 04:18:55,822 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:55,822 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c [2022-02-21 04:18:55,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/835f4a7fa/43f39ec6fe9d435b9791ec8200a7ac92/FLAGb4f21dbb2 [2022-02-21 04:18:55,851 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/835f4a7fa/43f39ec6fe9d435b9791ec8200a7ac92 [2022-02-21 04:18:55,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:55,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:55,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:55,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:55,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:55,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1197cabf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55, skipping insertion in model container [2022-02-21 04:18:55,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:55,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:56,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c[8146,8159] [2022-02-21 04:18:56,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:56,134 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:56,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c[8146,8159] [2022-02-21 04:18:56,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:56,202 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:56,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:56 WrapperNode [2022-02-21 04:18:56,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:56,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:56,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:56,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:56,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:56" (1/1) ... [2022-02-21 04:18:56,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:56" (1/1) ... [2022-02-21 04:18:56,263 INFO L137 Inliner]: procedures = 60, calls = 164, calls flagged for inlining = 61, calls inlined = 147, statements flattened = 1051 [2022-02-21 04:18:56,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:56,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:56,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:56,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:56,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:56" (1/1) ... [2022-02-21 04:18:56,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:56" (1/1) ... [2022-02-21 04:18:56,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:56" (1/1) ... [2022-02-21 04:18:56,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:56" (1/1) ... [2022-02-21 04:18:56,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:56" (1/1) ... [2022-02-21 04:18:56,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:56" (1/1) ... [2022-02-21 04:18:56,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:56" (1/1) ... [2022-02-21 04:18:56,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:56,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:56,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:56,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:56,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:56" (1/1) ... [2022-02-21 04:18:56,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:56,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:56,338 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) [2022-02-21 04:18:56,341 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 [2022-02-21 04:18:56,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:56,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:56,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:56,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:56,463 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:56,464 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:57,101 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:57,111 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:57,111 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:57,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:57 BoogieIcfgContainer [2022-02-21 04:18:57,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:57,116 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:57,116 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:57,118 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:57,119 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:57,119 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:55" (1/3) ... [2022-02-21 04:18:57,119 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2315e80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:57, skipping insertion in model container [2022-02-21 04:18:57,119 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:57,120 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:56" (2/3) ... [2022-02-21 04:18:57,120 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2315e80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:57, skipping insertion in model container [2022-02-21 04:18:57,120 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:57,120 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:57" (3/3) ... [2022-02-21 04:18:57,121 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product56.cil.c [2022-02-21 04:18:57,147 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:57,147 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:57,147 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:57,147 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:57,147 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:57,147 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:57,147 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:57,147 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:57,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 285 states, 284 states have (on average 1.3661971830985915) internal successors, (388), 284 states have internal predecessors, (388), 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) [2022-02-21 04:18:57,206 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 187 [2022-02-21 04:18:57,207 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:57,207 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:57,211 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:57,211 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] [2022-02-21 04:18:57,211 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:57,216 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 285 states, 284 states have (on average 1.3661971830985915) internal successors, (388), 284 states have internal predecessors, (388), 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) [2022-02-21 04:18:57,246 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 187 [2022-02-21 04:18:57,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:57,246 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:57,248 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:57,248 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] [2022-02-21 04:18:57,255 INFO L791 eck$LassoCheckResult]: Stem: 261#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 176#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 79#L514true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 156#L507true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 245#L522true main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 198#L1034true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 16#L1010true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 138#L542true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 191#L430-2true [2022-02-21 04:18:57,255 INFO L793 eck$LassoCheckResult]: Loop: 191#L430-2true assume !false; 273#L431true assume test_~splverifierCounter~0#1 < 4; 230#L432true test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 242#L440true assume !(0 != test_~tmp~5#1); 240#L440-2true test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 92#L450true assume !(0 != test_~tmp___0~2#1); 19#L450-2true test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 56#L460true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 114#L415true assume { :end_inline_startSystem } true; 283#L468-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 136#L317true __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 179#L552true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3#L180true assume !(0 != ~pumpRunning~0); 9#L180-2true assume !(0 != ~systemActive~0); 243#L187-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 254#L133true __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 203#L563true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 144#L563-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 72#L197true assume { :end_inline_timeShift } true; 191#L430-2true [2022-02-21 04:18:57,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:57,259 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:57,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:57,266 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823205539] [2022-02-21 04:18:57,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:57,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:57,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:57,374 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:57,439 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:57,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:57,442 INFO L85 PathProgramCache]: Analyzing trace with hash -936129685, now seen corresponding path program 1 times [2022-02-21 04:18:57,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:57,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992746635] [2022-02-21 04:18:57,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:57,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:57,527 INFO L290 TraceCheckUtils]: 0: Hoare triple {291#true} assume !false; {291#true} is VALID [2022-02-21 04:18:57,527 INFO L290 TraceCheckUtils]: 1: Hoare triple {291#true} assume test_~splverifierCounter~0#1 < 4; {291#true} is VALID [2022-02-21 04:18:57,527 INFO L290 TraceCheckUtils]: 2: Hoare triple {291#true} test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {291#true} is VALID [2022-02-21 04:18:57,528 INFO L290 TraceCheckUtils]: 3: Hoare triple {291#true} assume !(0 != test_~tmp~5#1); {291#true} is VALID [2022-02-21 04:18:57,528 INFO L290 TraceCheckUtils]: 4: Hoare triple {291#true} test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {291#true} is VALID [2022-02-21 04:18:57,528 INFO L290 TraceCheckUtils]: 5: Hoare triple {291#true} assume !(0 != test_~tmp___0~2#1); {291#true} is VALID [2022-02-21 04:18:57,528 INFO L290 TraceCheckUtils]: 6: Hoare triple {291#true} test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; {291#true} is VALID [2022-02-21 04:18:57,529 INFO L290 TraceCheckUtils]: 7: Hoare triple {291#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {293#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:57,529 INFO L290 TraceCheckUtils]: 8: Hoare triple {293#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {293#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:57,529 INFO L290 TraceCheckUtils]: 9: Hoare triple {293#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; {293#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:57,530 INFO L290 TraceCheckUtils]: 10: Hoare triple {293#(<= 1 ~systemActive~0)} __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; {293#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:57,530 INFO L290 TraceCheckUtils]: 11: Hoare triple {293#(<= 1 ~systemActive~0)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {293#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:57,531 INFO L290 TraceCheckUtils]: 12: Hoare triple {293#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {293#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:57,531 INFO L290 TraceCheckUtils]: 13: Hoare triple {293#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {292#false} is VALID [2022-02-21 04:18:57,531 INFO L290 TraceCheckUtils]: 14: Hoare triple {292#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {292#false} is VALID [2022-02-21 04:18:57,531 INFO L290 TraceCheckUtils]: 15: Hoare triple {292#false} __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; {292#false} is VALID [2022-02-21 04:18:57,532 INFO L290 TraceCheckUtils]: 16: Hoare triple {292#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); {292#false} is VALID [2022-02-21 04:18:57,532 INFO L290 TraceCheckUtils]: 17: Hoare triple {292#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {292#false} is VALID [2022-02-21 04:18:57,532 INFO L290 TraceCheckUtils]: 18: Hoare triple {292#false} assume { :end_inline_timeShift } true; {292#false} is VALID [2022-02-21 04:18:57,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:57,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:57,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992746635] [2022-02-21 04:18:57,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992746635] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:57,534 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:57,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:57,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674765014] [2022-02-21 04:18:57,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:57,539 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:57,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:57,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:57,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:57,562 INFO L87 Difference]: Start difference. First operand has 285 states, 284 states have (on average 1.3661971830985915) internal successors, (388), 284 states have internal predecessors, (388), 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 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-02-21 04:18:57,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:57,960 INFO L93 Difference]: Finished difference Result 554 states and 742 transitions. [2022-02-21 04:18:57,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:57,961 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-02-21 04:18:57,977 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:57,981 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 554 states and 742 transitions. [2022-02-21 04:18:58,005 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 364 [2022-02-21 04:18:58,029 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 554 states to 534 states and 721 transitions. [2022-02-21 04:18:58,030 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 534 [2022-02-21 04:18:58,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 534 [2022-02-21 04:18:58,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 534 states and 721 transitions. [2022-02-21 04:18:58,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:58,037 INFO L681 BuchiCegarLoop]: Abstraction has 534 states and 721 transitions. [2022-02-21 04:18:58,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states and 721 transitions. [2022-02-21 04:18:58,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 531. [2022-02-21 04:18:58,088 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:58,107 INFO L82 GeneralOperation]: Start isEquivalent. First operand 534 states and 721 transitions. Second operand has 531 states, 531 states have (on average 1.3502824858757063) internal successors, (717), 530 states have internal predecessors, (717), 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) [2022-02-21 04:18:58,109 INFO L74 IsIncluded]: Start isIncluded. First operand 534 states and 721 transitions. Second operand has 531 states, 531 states have (on average 1.3502824858757063) internal successors, (717), 530 states have internal predecessors, (717), 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) [2022-02-21 04:18:58,110 INFO L87 Difference]: Start difference. First operand 534 states and 721 transitions. Second operand has 531 states, 531 states have (on average 1.3502824858757063) internal successors, (717), 530 states have internal predecessors, (717), 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) [2022-02-21 04:18:58,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,129 INFO L93 Difference]: Finished difference Result 534 states and 721 transitions. [2022-02-21 04:18:58,130 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 721 transitions. [2022-02-21 04:18:58,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:58,133 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:58,134 INFO L74 IsIncluded]: Start isIncluded. First operand has 531 states, 531 states have (on average 1.3502824858757063) internal successors, (717), 530 states have internal predecessors, (717), 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 534 states and 721 transitions. [2022-02-21 04:18:58,135 INFO L87 Difference]: Start difference. First operand has 531 states, 531 states have (on average 1.3502824858757063) internal successors, (717), 530 states have internal predecessors, (717), 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 534 states and 721 transitions. [2022-02-21 04:18:58,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,153 INFO L93 Difference]: Finished difference Result 534 states and 721 transitions. [2022-02-21 04:18:58,153 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 721 transitions. [2022-02-21 04:18:58,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:58,154 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:58,154 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:58,154 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:58,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 531 states have (on average 1.3502824858757063) internal successors, (717), 530 states have internal predecessors, (717), 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) [2022-02-21 04:18:58,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 717 transitions. [2022-02-21 04:18:58,169 INFO L704 BuchiCegarLoop]: Abstraction has 531 states and 717 transitions. [2022-02-21 04:18:58,169 INFO L587 BuchiCegarLoop]: Abstraction has 531 states and 717 transitions. [2022-02-21 04:18:58,169 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:58,169 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 531 states and 717 transitions. [2022-02-21 04:18:58,171 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 361 [2022-02-21 04:18:58,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:58,171 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:58,172 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:58,172 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:58,172 INFO L791 eck$LassoCheckResult]: Stem: 1129#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1082#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 986#L514 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 987#L507 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 1065#L522 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 1097#L1034 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 874#L1010 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 875#L542 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1051#L430-2 [2022-02-21 04:18:58,172 INFO L793 eck$LassoCheckResult]: Loop: 1051#L430-2 assume !false; 1133#L431 assume test_~splverifierCounter~0#1 < 4; 1115#L432 test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 1116#L440 assume !(0 != test_~tmp~5#1); 1120#L440-2 test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 1004#L450 assume !(0 != test_~tmp___0~2#1); 873#L450-2 test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 880#L460 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 948#L415 assume { :end_inline_startSystem } true; 1026#L468-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 1047#L317 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 1048#L552 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 848#L180 assume !(0 != ~pumpRunning~0); 849#L180-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 862#L264 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~4#1;havoc isMethaneAlarm_~retValue_acc~4#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1099#L101 isMethaneAlarm_#t~ret12#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~4#1 := isMethaneAlarm_#t~ret12#1;havoc isMethaneAlarm_#t~ret12#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~4#1; 1053#L308 processEnvironment_#t~ret11#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret11#1;havoc processEnvironment_#t~ret11#1; 1054#L268 assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 906#L298-1 assume { :end_inline_deactivatePump } true; 861#L264-1 assume { :end_inline_processEnvironment } true; 1114#L187-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1121#L133 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 1148#L563 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 1145#L563-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1144#L197 assume { :end_inline_timeShift } true; 1051#L430-2 [2022-02-21 04:18:58,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:58,173 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:58,173 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:58,173 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013230779] [2022-02-21 04:18:58,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:58,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:58,191 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:58,212 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:58,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:58,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1879030444, now seen corresponding path program 1 times [2022-02-21 04:18:58,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:58,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353568125] [2022-02-21 04:18:58,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:58,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:58,238 INFO L290 TraceCheckUtils]: 0: Hoare triple {2452#true} assume !false; {2452#true} is VALID [2022-02-21 04:18:58,238 INFO L290 TraceCheckUtils]: 1: Hoare triple {2452#true} assume test_~splverifierCounter~0#1 < 4; {2452#true} is VALID [2022-02-21 04:18:58,239 INFO L290 TraceCheckUtils]: 2: Hoare triple {2452#true} test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {2452#true} is VALID [2022-02-21 04:18:58,239 INFO L290 TraceCheckUtils]: 3: Hoare triple {2452#true} assume !(0 != test_~tmp~5#1); {2452#true} is VALID [2022-02-21 04:18:58,240 INFO L290 TraceCheckUtils]: 4: Hoare triple {2452#true} test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {2452#true} is VALID [2022-02-21 04:18:58,240 INFO L290 TraceCheckUtils]: 5: Hoare triple {2452#true} assume !(0 != test_~tmp___0~2#1); {2452#true} is VALID [2022-02-21 04:18:58,240 INFO L290 TraceCheckUtils]: 6: Hoare triple {2452#true} test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; {2452#true} is VALID [2022-02-21 04:18:58,240 INFO L290 TraceCheckUtils]: 7: Hoare triple {2452#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {2452#true} is VALID [2022-02-21 04:18:58,240 INFO L290 TraceCheckUtils]: 8: Hoare triple {2452#true} assume { :end_inline_startSystem } true; {2452#true} is VALID [2022-02-21 04:18:58,241 INFO L290 TraceCheckUtils]: 9: Hoare triple {2452#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; {2452#true} is VALID [2022-02-21 04:18:58,241 INFO L290 TraceCheckUtils]: 10: Hoare triple {2452#true} __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; {2452#true} is VALID [2022-02-21 04:18:58,241 INFO L290 TraceCheckUtils]: 11: Hoare triple {2452#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {2452#true} is VALID [2022-02-21 04:18:58,242 INFO L290 TraceCheckUtils]: 12: Hoare triple {2452#true} assume !(0 != ~pumpRunning~0); {2454#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:58,242 INFO L290 TraceCheckUtils]: 13: Hoare triple {2454#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {2454#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:58,242 INFO L290 TraceCheckUtils]: 14: Hoare triple {2454#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~4#1;havoc isMethaneAlarm_~retValue_acc~4#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {2453#false} is VALID [2022-02-21 04:18:58,242 INFO L290 TraceCheckUtils]: 15: Hoare triple {2453#false} isMethaneAlarm_#t~ret12#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~4#1 := isMethaneAlarm_#t~ret12#1;havoc isMethaneAlarm_#t~ret12#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~4#1; {2453#false} is VALID [2022-02-21 04:18:58,243 INFO L290 TraceCheckUtils]: 16: Hoare triple {2453#false} processEnvironment_#t~ret11#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret11#1;havoc processEnvironment_#t~ret11#1; {2453#false} is VALID [2022-02-21 04:18:58,243 INFO L290 TraceCheckUtils]: 17: Hoare triple {2453#false} assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {2453#false} is VALID [2022-02-21 04:18:58,243 INFO L290 TraceCheckUtils]: 18: Hoare triple {2453#false} assume { :end_inline_deactivatePump } true; {2453#false} is VALID [2022-02-21 04:18:58,243 INFO L290 TraceCheckUtils]: 19: Hoare triple {2453#false} assume { :end_inline_processEnvironment } true; {2453#false} is VALID [2022-02-21 04:18:58,243 INFO L290 TraceCheckUtils]: 20: Hoare triple {2453#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {2453#false} is VALID [2022-02-21 04:18:58,244 INFO L290 TraceCheckUtils]: 21: Hoare triple {2453#false} __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; {2453#false} is VALID [2022-02-21 04:18:58,244 INFO L290 TraceCheckUtils]: 22: Hoare triple {2453#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); {2453#false} is VALID [2022-02-21 04:18:58,244 INFO L290 TraceCheckUtils]: 23: Hoare triple {2453#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {2453#false} is VALID [2022-02-21 04:18:58,244 INFO L290 TraceCheckUtils]: 24: Hoare triple {2453#false} assume { :end_inline_timeShift } true; {2453#false} is VALID [2022-02-21 04:18:58,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:58,245 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:58,245 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353568125] [2022-02-21 04:18:58,245 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353568125] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:58,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:58,246 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:58,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967378795] [2022-02-21 04:18:58,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:58,246 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:58,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:58,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:58,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:58,248 INFO L87 Difference]: Start difference. First operand 531 states and 717 transitions. cyclomatic complexity: 189 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:58,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,485 INFO L93 Difference]: Finished difference Result 571 states and 732 transitions. [2022-02-21 04:18:58,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:58,486 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:58,501 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:58,501 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 571 states and 732 transitions. [2022-02-21 04:18:58,515 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 399 [2022-02-21 04:18:58,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 571 states to 571 states and 732 transitions. [2022-02-21 04:18:58,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 571 [2022-02-21 04:18:58,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 571 [2022-02-21 04:18:58,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 571 states and 732 transitions. [2022-02-21 04:18:58,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:58,528 INFO L681 BuchiCegarLoop]: Abstraction has 571 states and 732 transitions. [2022-02-21 04:18:58,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states and 732 transitions. [2022-02-21 04:18:58,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2022-02-21 04:18:58,533 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:58,534 INFO L82 GeneralOperation]: Start isEquivalent. First operand 571 states and 732 transitions. Second operand has 571 states, 571 states have (on average 1.2819614711033276) internal successors, (732), 570 states have internal predecessors, (732), 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) [2022-02-21 04:18:58,535 INFO L74 IsIncluded]: Start isIncluded. First operand 571 states and 732 transitions. Second operand has 571 states, 571 states have (on average 1.2819614711033276) internal successors, (732), 570 states have internal predecessors, (732), 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) [2022-02-21 04:18:58,536 INFO L87 Difference]: Start difference. First operand 571 states and 732 transitions. Second operand has 571 states, 571 states have (on average 1.2819614711033276) internal successors, (732), 570 states have internal predecessors, (732), 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) [2022-02-21 04:18:58,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,546 INFO L93 Difference]: Finished difference Result 571 states and 732 transitions. [2022-02-21 04:18:58,546 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 732 transitions. [2022-02-21 04:18:58,546 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:58,546 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:58,547 INFO L74 IsIncluded]: Start isIncluded. First operand has 571 states, 571 states have (on average 1.2819614711033276) internal successors, (732), 570 states have internal predecessors, (732), 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 571 states and 732 transitions. [2022-02-21 04:18:58,548 INFO L87 Difference]: Start difference. First operand has 571 states, 571 states have (on average 1.2819614711033276) internal successors, (732), 570 states have internal predecessors, (732), 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 571 states and 732 transitions. [2022-02-21 04:18:58,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,558 INFO L93 Difference]: Finished difference Result 571 states and 732 transitions. [2022-02-21 04:18:58,558 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 732 transitions. [2022-02-21 04:18:58,559 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:58,559 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:58,559 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:58,559 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:58,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 571 states have (on average 1.2819614711033276) internal successors, (732), 570 states have internal predecessors, (732), 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) [2022-02-21 04:18:58,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 732 transitions. [2022-02-21 04:18:58,570 INFO L704 BuchiCegarLoop]: Abstraction has 571 states and 732 transitions. [2022-02-21 04:18:58,570 INFO L587 BuchiCegarLoop]: Abstraction has 571 states and 732 transitions. [2022-02-21 04:18:58,570 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:58,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 571 states and 732 transitions. [2022-02-21 04:18:58,572 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 399 [2022-02-21 04:18:58,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:58,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:58,572 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:58,572 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:58,572 INFO L791 eck$LassoCheckResult]: Stem: 3276#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 3225#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 3133#L514 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3134#L507 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 3206#L522 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 3238#L1034 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 3048#L1010 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3049#L542 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3125#L430-2 [2022-02-21 04:18:58,573 INFO L793 eck$LassoCheckResult]: Loop: 3125#L430-2 assume !false; 3233#L431 assume test_~splverifierCounter~0#1 < 4; 3278#L432 test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 3595#L440 assume !(0 != test_~tmp~5#1); 3593#L440-2 test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 3591#L450 assume !(0 != test_~tmp___0~2#1); 3589#L450-2 test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 3102#L460 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 3104#L468 assume !(0 != test_~tmp___1~0#1); 3164#L468-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 3186#L317 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 3187#L552 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3026#L180 assume !(0 != ~pumpRunning~0); 3027#L180-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 3036#L264 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1; 3385#L238-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 3384#L212-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 3383#L141-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 3381#L146-3 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 3379#L366-9 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; 3377#L366-11 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 3375#L372-3 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 3264#L216-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3265#L204-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3440#L212-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3226#L238-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 3035#L264-1 assume { :end_inline_processEnvironment } true; 3261#L187-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 3437#L133 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 3435#L563 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 3195#L563-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3124#L197 assume { :end_inline_timeShift } true; 3125#L430-2 [2022-02-21 04:18:58,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:58,573 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:58,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:58,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885293422] [2022-02-21 04:18:58,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:58,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:58,583 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:58,608 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:58,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:58,609 INFO L85 PathProgramCache]: Analyzing trace with hash -2094312332, now seen corresponding path program 1 times [2022-02-21 04:18:58,609 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:58,609 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422919445] [2022-02-21 04:18:58,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:58,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:58,646 INFO L290 TraceCheckUtils]: 0: Hoare triple {4744#true} assume !false; {4744#true} is VALID [2022-02-21 04:18:58,646 INFO L290 TraceCheckUtils]: 1: Hoare triple {4744#true} assume test_~splverifierCounter~0#1 < 4; {4744#true} is VALID [2022-02-21 04:18:58,646 INFO L290 TraceCheckUtils]: 2: Hoare triple {4744#true} test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {4744#true} is VALID [2022-02-21 04:18:58,646 INFO L290 TraceCheckUtils]: 3: Hoare triple {4744#true} assume !(0 != test_~tmp~5#1); {4744#true} is VALID [2022-02-21 04:18:58,646 INFO L290 TraceCheckUtils]: 4: Hoare triple {4744#true} test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {4744#true} is VALID [2022-02-21 04:18:58,646 INFO L290 TraceCheckUtils]: 5: Hoare triple {4744#true} assume !(0 != test_~tmp___0~2#1); {4744#true} is VALID [2022-02-21 04:18:58,647 INFO L290 TraceCheckUtils]: 6: Hoare triple {4744#true} test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; {4744#true} is VALID [2022-02-21 04:18:58,647 INFO L290 TraceCheckUtils]: 7: Hoare triple {4744#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; {4744#true} is VALID [2022-02-21 04:18:58,647 INFO L290 TraceCheckUtils]: 8: Hoare triple {4744#true} assume !(0 != test_~tmp___1~0#1); {4744#true} is VALID [2022-02-21 04:18:58,647 INFO L290 TraceCheckUtils]: 9: Hoare triple {4744#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; {4744#true} is VALID [2022-02-21 04:18:58,647 INFO L290 TraceCheckUtils]: 10: Hoare triple {4744#true} __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; {4744#true} is VALID [2022-02-21 04:18:58,647 INFO L290 TraceCheckUtils]: 11: Hoare triple {4744#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {4744#true} is VALID [2022-02-21 04:18:58,647 INFO L290 TraceCheckUtils]: 12: Hoare triple {4744#true} assume !(0 != ~pumpRunning~0); {4744#true} is VALID [2022-02-21 04:18:58,647 INFO L290 TraceCheckUtils]: 13: Hoare triple {4744#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {4744#true} is VALID [2022-02-21 04:18:58,647 INFO L290 TraceCheckUtils]: 14: Hoare triple {4744#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1; {4744#true} is VALID [2022-02-21 04:18:58,648 INFO L290 TraceCheckUtils]: 15: Hoare triple {4744#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {4744#true} is VALID [2022-02-21 04:18:58,648 INFO L290 TraceCheckUtils]: 16: Hoare triple {4744#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; {4744#true} is VALID [2022-02-21 04:18:58,648 INFO L290 TraceCheckUtils]: 17: Hoare triple {4744#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; {4746#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:58,648 INFO L290 TraceCheckUtils]: 18: Hoare triple {4746#(<= ~waterLevel~0 1)} isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; {4746#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:58,649 INFO L290 TraceCheckUtils]: 19: Hoare triple {4746#(<= ~waterLevel~0 1)} assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; {4746#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:58,649 INFO L290 TraceCheckUtils]: 20: Hoare triple {4746#(<= ~waterLevel~0 1)} isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; {4746#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:58,649 INFO L290 TraceCheckUtils]: 21: Hoare triple {4746#(<= ~waterLevel~0 1)} processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; {4746#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:58,650 INFO L290 TraceCheckUtils]: 22: Hoare triple {4746#(<= ~waterLevel~0 1)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {4746#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:58,650 INFO L290 TraceCheckUtils]: 23: Hoare triple {4746#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__base } true; {4746#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:58,650 INFO L290 TraceCheckUtils]: 24: Hoare triple {4746#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {4746#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:58,651 INFO L290 TraceCheckUtils]: 25: Hoare triple {4746#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; {4746#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:58,651 INFO L290 TraceCheckUtils]: 26: Hoare triple {4746#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {4746#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:58,651 INFO L290 TraceCheckUtils]: 27: Hoare triple {4746#(<= ~waterLevel~0 1)} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {4747#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:18:58,652 INFO L290 TraceCheckUtils]: 28: Hoare triple {4747#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; {4748#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~6#1| 1)} is VALID [2022-02-21 04:18:58,652 INFO L290 TraceCheckUtils]: 29: Hoare triple {4748#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~6#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); {4745#false} is VALID [2022-02-21 04:18:58,652 INFO L290 TraceCheckUtils]: 30: Hoare triple {4745#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {4745#false} is VALID [2022-02-21 04:18:58,652 INFO L290 TraceCheckUtils]: 31: Hoare triple {4745#false} assume { :end_inline_timeShift } true; {4745#false} is VALID [2022-02-21 04:18:58,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:58,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:58,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422919445] [2022-02-21 04:18:58,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422919445] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:58,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:58,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:58,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531841214] [2022-02-21 04:18:58,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:58,653 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:58,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:58,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:58,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:58,654 INFO L87 Difference]: Start difference. First operand 571 states and 732 transitions. cyclomatic complexity: 164 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-02-21 04:18:59,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:59,637 INFO L93 Difference]: Finished difference Result 1681 states and 2104 transitions. [2022-02-21 04:18:59,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:59,638 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-02-21 04:18:59,655 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:59,657 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1681 states and 2104 transitions. [2022-02-21 04:18:59,724 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1083 [2022-02-21 04:18:59,792 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1681 states to 1681 states and 2104 transitions. [2022-02-21 04:18:59,792 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1681 [2022-02-21 04:18:59,792 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1681 [2022-02-21 04:18:59,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1681 states and 2104 transitions. [2022-02-21 04:18:59,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:59,794 INFO L681 BuchiCegarLoop]: Abstraction has 1681 states and 2104 transitions. [2022-02-21 04:18:59,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states and 2104 transitions. [2022-02-21 04:18:59,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1130. [2022-02-21 04:18:59,806 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:59,808 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1681 states and 2104 transitions. Second operand has 1130 states, 1130 states have (on average 1.2548672566371681) internal successors, (1418), 1129 states have internal predecessors, (1418), 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) [2022-02-21 04:18:59,809 INFO L74 IsIncluded]: Start isIncluded. First operand 1681 states and 2104 transitions. Second operand has 1130 states, 1130 states have (on average 1.2548672566371681) internal successors, (1418), 1129 states have internal predecessors, (1418), 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) [2022-02-21 04:18:59,811 INFO L87 Difference]: Start difference. First operand 1681 states and 2104 transitions. Second operand has 1130 states, 1130 states have (on average 1.2548672566371681) internal successors, (1418), 1129 states have internal predecessors, (1418), 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) [2022-02-21 04:18:59,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:59,874 INFO L93 Difference]: Finished difference Result 1681 states and 2104 transitions. [2022-02-21 04:18:59,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 2104 transitions. [2022-02-21 04:18:59,876 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:59,876 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:59,878 INFO L74 IsIncluded]: Start isIncluded. First operand has 1130 states, 1130 states have (on average 1.2548672566371681) internal successors, (1418), 1129 states have internal predecessors, (1418), 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 1681 states and 2104 transitions. [2022-02-21 04:18:59,880 INFO L87 Difference]: Start difference. First operand has 1130 states, 1130 states have (on average 1.2548672566371681) internal successors, (1418), 1129 states have internal predecessors, (1418), 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 1681 states and 2104 transitions. [2022-02-21 04:18:59,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:59,944 INFO L93 Difference]: Finished difference Result 1681 states and 2104 transitions. [2022-02-21 04:18:59,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 2104 transitions. [2022-02-21 04:18:59,946 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:59,946 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:59,947 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:59,947 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:59,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 1130 states have (on average 1.2548672566371681) internal successors, (1418), 1129 states have internal predecessors, (1418), 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) [2022-02-21 04:18:59,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1418 transitions. [2022-02-21 04:18:59,979 INFO L704 BuchiCegarLoop]: Abstraction has 1130 states and 1418 transitions. [2022-02-21 04:18:59,979 INFO L587 BuchiCegarLoop]: Abstraction has 1130 states and 1418 transitions. [2022-02-21 04:18:59,979 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:18:59,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1130 states and 1418 transitions. [2022-02-21 04:18:59,982 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 794 [2022-02-21 04:18:59,982 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:59,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:59,983 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:59,983 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:59,983 INFO L791 eck$LassoCheckResult]: Stem: 6692#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 6638#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 6548#L514 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 6549#L507 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 6620#L522 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 6652#L1034 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 6460#L1010 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 6461#L542 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 6540#L430-2 [2022-02-21 04:18:59,983 INFO L793 eck$LassoCheckResult]: Loop: 6540#L430-2 assume !false; 6646#L431 assume test_~splverifierCounter~0#1 < 4; 6698#L432 test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 7318#L440 assume !(0 != test_~tmp~5#1); 7319#L440-2 test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 7446#L450 assume !(0 != test_~tmp___0~2#1); 7444#L450-2 test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 7443#L460 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 7442#L468 assume !(0 != test_~tmp___1~0#1); 6579#L468-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 6601#L317 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 6602#L552 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 6438#L180 assume !(0 != ~pumpRunning~0); 6439#L180-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 6448#L264 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1; 6653#L238-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 6588#L212-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 6589#L141-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 6541#L146-3 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 6542#L366-9 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; 6632#L366-11 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 6475#L372-3 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 6476#L216-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 6586#L204-6 assume { :end_inline_processEnvironment__wrappee__base } true; 6580#L212-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 6581#L238-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 6447#L264-1 assume { :end_inline_processEnvironment } true; 6673#L187-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 6684#L133 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 6654#L563 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 6605#L317-1 __utac_acc__Specification5_spec__3_#t~ret30#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret30#1;havoc __utac_acc__Specification5_spec__3_#t~ret30#1; 6487#L567 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1); 6488#L563-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 6539#L197 assume { :end_inline_timeShift } true; 6540#L430-2 [2022-02-21 04:18:59,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:59,985 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:18:59,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:59,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215342174] [2022-02-21 04:18:59,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:59,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:59,992 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:59,999 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:00,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:00,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1686418511, now seen corresponding path program 1 times [2022-02-21 04:19:00,000 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:00,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107190605] [2022-02-21 04:19:00,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:00,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:00,006 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:00,011 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:00,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:00,011 INFO L85 PathProgramCache]: Analyzing trace with hash -547398408, now seen corresponding path program 1 times [2022-02-21 04:19:00,011 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:00,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799992372] [2022-02-21 04:19:00,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:00,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:00,022 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:00,043 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:02,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:19:02 BoogieIcfgContainer [2022-02-21 04:19:02,630 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:19:02,631 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:19:02,633 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:19:02,634 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:19:02,634 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:57" (3/4) ... [2022-02-21 04:19:02,636 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:19:02,675 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:19:02,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:19:02,676 INFO L158 Benchmark]: Toolchain (without parser) took 6821.15ms. Allocated memory was 107.0MB in the beginning and 239.1MB in the end (delta: 132.1MB). Free memory was 78.1MB in the beginning and 131.6MB in the end (delta: -53.6MB). Peak memory consumption was 78.5MB. Max. memory is 16.1GB. [2022-02-21 04:19:02,676 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 107.0MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:19:02,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.31ms. Allocated memory is still 107.0MB. Free memory was 77.7MB in the beginning and 72.2MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:19:02,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.68ms. Allocated memory is still 107.0MB. Free memory was 71.8MB in the beginning and 65.9MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:19:02,677 INFO L158 Benchmark]: Boogie Preprocessor took 27.57ms. Allocated memory is still 107.0MB. Free memory was 65.9MB in the beginning and 62.5MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:19:02,677 INFO L158 Benchmark]: RCFGBuilder took 823.39ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 62.5MB in the beginning and 87.2MB in the end (delta: -24.8MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-02-21 04:19:02,677 INFO L158 Benchmark]: BuchiAutomizer took 5514.58ms. Allocated memory was 136.3MB in the beginning and 239.1MB in the end (delta: 102.8MB). Free memory was 87.2MB in the beginning and 134.7MB in the end (delta: -47.5MB). Peak memory consumption was 98.2MB. Max. memory is 16.1GB. [2022-02-21 04:19:02,677 INFO L158 Benchmark]: Witness Printer took 44.23ms. Allocated memory is still 239.1MB. Free memory was 133.7MB in the beginning and 131.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:19:02,679 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 107.0MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.31ms. Allocated memory is still 107.0MB. Free memory was 77.7MB in the beginning and 72.2MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.68ms. Allocated memory is still 107.0MB. Free memory was 71.8MB in the beginning and 65.9MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.57ms. Allocated memory is still 107.0MB. Free memory was 65.9MB in the beginning and 62.5MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 823.39ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 62.5MB in the beginning and 87.2MB in the end (delta: -24.8MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 5514.58ms. Allocated memory was 136.3MB in the beginning and 239.1MB in the end (delta: 102.8MB). Free memory was 87.2MB in the beginning and 134.7MB in the end (delta: -47.5MB). Peak memory consumption was 98.2MB. Max. memory is 16.1GB. * Witness Printer took 44.23ms. Allocated memory is still 239.1MB. Free memory was 133.7MB in the beginning and 131.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 1130 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.1s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 554 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.2s Buchi closure took 0.0s. Biggest automaton had 1130 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1556 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1556 mSDsluCounter, 2643 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1499 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 172 IncrementalHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 1144 mSDtfsCounter, 172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 430]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@290f45d4=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@191f1d20=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b8bb266=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@408dbc88=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=1, retValue_acc=0, \result=1, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e083d12=0, tmp=1, tmp=1, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f6acbc0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fc22fec=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, tmp___0=0, tmp=0, head=0, \result=1, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76f38588=0, NULL=0, retValue_acc=0, waterLevel=1, systemActive=1, retValue_acc=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10b2cfa1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@776e4c2c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@385f20c3=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e0822db=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 430]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L536] int switchedOnBeforeTS ; [L754] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L951] int cleanupTimeShifts = 4; [L1025] int retValue_acc ; [L1026] int tmp ; [L1030] FCALL select_helpers() [L1031] FCALL select_features() [L1032] CALL, EXPR valid_product() [L518] int retValue_acc ; [L521] retValue_acc = 1 [L522] return (retValue_acc); [L1032] RET, EXPR valid_product() [L1032] tmp = valid_product() [L1034] COND TRUE \read(tmp) [L1036] FCALL setup() [L1037] CALL runTest() [L1018] CALL __utac_acc__Specification5_spec__1() [L541] switchedOnBeforeTS = 0 [L1018] RET __utac_acc__Specification5_spec__1() [L1019] CALL test() [L421] int splverifierCounter ; [L422] int tmp ; [L423] int tmp___0 ; [L424] int tmp___1 ; [L425] int tmp___2 ; [L428] splverifierCounter = 0 Loop: [L430] COND TRUE 1 [L432] COND TRUE splverifierCounter < 4 [L438] tmp = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp)) [L448] tmp___0 = __VERIFIER_nondet_int() [L450] COND FALSE !(\read(tmp___0)) [L458] tmp___2 = __VERIFIER_nondet_int() [L460] COND FALSE !(\read(tmp___2)) [L466] tmp___1 = __VERIFIER_nondet_int() [L468] COND FALSE !(\read(tmp___1)) [L477] CALL timeShift() [L178] CALL __utac_acc__Specification5_spec__2() [L550] CALL, EXPR isPumpRunning() [L313] int retValue_acc ; [L316] retValue_acc = pumpRunning [L317] return (retValue_acc); [L550] RET, EXPR isPumpRunning() [L550] switchedOnBeforeTS = isPumpRunning() [L178] RET __utac_acc__Specification5_spec__2() [L180] COND FALSE !(\read(pumpRunning)) [L187] COND TRUE \read(systemActive) [L189] CALL processEnvironment() [L261] int tmp ; [L264] COND FALSE !(\read(pumpRunning)) [L279] CALL processEnvironment__wrappee__lowWaterSensor() [L235] int tmp ; [L238] COND FALSE !(\read(pumpRunning)) [L253] CALL processEnvironment__wrappee__highWaterSensor() [L209] int tmp ; [L212] COND TRUE ! pumpRunning [L214] CALL, EXPR isHighWaterLevel() [L358] int retValue_acc ; [L359] int tmp ; [L360] int tmp___0 ; [L364] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L364] RET, EXPR isHighWaterSensorDry() [L364] tmp = isHighWaterSensorDry() [L366] COND TRUE \read(tmp) [L367] tmp___0 = 0 [L371] retValue_acc = tmp___0 [L372] return (retValue_acc); [L214] RET, EXPR isHighWaterLevel() [L214] tmp = isHighWaterLevel() [L216] COND FALSE !(\read(tmp)) [L222] FCALL processEnvironment__wrappee__base() [L253] RET processEnvironment__wrappee__highWaterSensor() [L279] RET processEnvironment__wrappee__lowWaterSensor() [L189] RET processEnvironment() [L195] CALL __utac_acc__Specification5_spec__3() [L556] int tmp ; [L557] int tmp___0 ; [L561] CALL, EXPR getWaterLevel() [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); [L561] RET, EXPR getWaterLevel() [L561] tmp = getWaterLevel() [L563] COND TRUE tmp != 2 [L565] CALL, EXPR isPumpRunning() [L313] int retValue_acc ; [L316] retValue_acc = pumpRunning [L317] return (retValue_acc); [L565] RET, EXPR isPumpRunning() [L565] tmp___0 = isPumpRunning() [L567] COND FALSE !(\read(tmp___0)) [L195] RET __utac_acc__Specification5_spec__3() [L477] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:19:02,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)