./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product45.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_spec3_product45.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 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:08,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:08,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:08,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:08,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:08,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:08,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:08,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:08,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:08,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:08,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:08,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:08,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:08,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:08,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:08,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:08,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:08,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:08,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:08,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:08,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:08,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:08,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:08,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:08,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:08,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:08,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:08,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:08,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:08,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:08,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:08,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:08,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:08,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:08,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:08,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:08,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:08,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:08,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:08,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:08,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:08,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:08,279 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:08,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:08,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:08,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:08,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:08,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:08,281 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:08,281 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:08,281 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:08,281 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:08,282 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:08,282 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:08,282 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:08,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:08,283 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:08,283 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:08,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:08,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:08,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:08,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:08,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:08,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:08,284 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:08,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:08,284 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:08,284 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:08,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:08,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:08,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:08,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:08,285 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:08,286 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:08,286 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 [2022-02-21 04:17:08,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:08,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:08,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:08,538 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:08,539 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:08,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2022-02-21 04:17:08,611 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e7f9f304/7bad1cf9fe264d5aa52588e5ebed74e6/FLAGba77f5d42 [2022-02-21 04:17:08,987 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:08,991 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2022-02-21 04:17:08,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e7f9f304/7bad1cf9fe264d5aa52588e5ebed74e6/FLAGba77f5d42 [2022-02-21 04:17:09,009 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e7f9f304/7bad1cf9fe264d5aa52588e5ebed74e6 [2022-02-21 04:17:09,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:09,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:09,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:09,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:09,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:09,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:09" (1/1) ... [2022-02-21 04:17:09,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a01ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:09, skipping insertion in model container [2022-02-21 04:17:09,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:09" (1/1) ... [2022-02-21 04:17:09,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:09,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:09,328 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_spec3_product45.cil.c[8617,8630] [2022-02-21 04:17:09,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:09,395 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:09,439 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_spec3_product45.cil.c[8617,8630] [2022-02-21 04:17:09,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:09,493 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:09,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:09 WrapperNode [2022-02-21 04:17:09,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:09,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:09,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:09,496 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:09,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:09" (1/1) ... [2022-02-21 04:17:09,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:09" (1/1) ... [2022-02-21 04:17:09,579 INFO L137 Inliner]: procedures = 54, calls = 156, calls flagged for inlining = 53, calls inlined = 98, statements flattened = 740 [2022-02-21 04:17:09,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:09,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:09,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:09,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:09,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:09" (1/1) ... [2022-02-21 04:17:09,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:09" (1/1) ... [2022-02-21 04:17:09,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:09" (1/1) ... [2022-02-21 04:17:09,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:09" (1/1) ... [2022-02-21 04:17:09,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:09" (1/1) ... [2022-02-21 04:17:09,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:09" (1/1) ... [2022-02-21 04:17:09,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:09" (1/1) ... [2022-02-21 04:17:09,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:09,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:09,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:09,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:09,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:09" (1/1) ... [2022-02-21 04:17:09,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:09,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:09,675 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 04:17:09,687 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 04:17:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:09,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:09,755 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:09,756 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:10,274 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:10,286 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:10,286 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:10,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:10 BoogieIcfgContainer [2022-02-21 04:17:10,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:10,290 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:10,290 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:10,293 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:10,294 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:10,294 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:09" (1/3) ... [2022-02-21 04:17:10,295 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f9e716d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:10, skipping insertion in model container [2022-02-21 04:17:10,295 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:10,295 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:09" (2/3) ... [2022-02-21 04:17:10,295 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f9e716d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:10, skipping insertion in model container [2022-02-21 04:17:10,295 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:10,296 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:10" (3/3) ... [2022-02-21 04:17:10,297 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product45.cil.c [2022-02-21 04:17:10,340 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:10,340 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:10,340 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:10,340 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:10,341 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:10,341 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:10,341 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:10,341 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:10,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 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 04:17:10,424 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2022-02-21 04:17:10,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:10,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:10,432 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:10,432 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:10,432 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:10,437 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 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 04:17:10,471 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2022-02-21 04:17:10,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:10,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:10,472 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:10,472 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:10,475 INFO L791 eck$LassoCheckResult]: Stem: 172#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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 66#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 84#L573true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 157#L566true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 186#L581true main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 154#L275true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 185#L248true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 129#L496-2true [2022-02-21 04:17:10,479 INFO L793 eck$LassoCheckResult]: Loop: 129#L496-2true assume !false; 175#L497true assume test_~splverifierCounter~0#1 < 4; 123#L498true test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 164#L506true assume !(0 != test_~tmp~6#1); 150#L506-2true test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 118#L516true assume !(0 != test_~tmp___0~2#1); 47#L516-2true test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 133#L526true assume 0 != test_~tmp___2~0#1; 31#L532-2true assume { :begin_inline_timeShift } true; 46#L298true assume !(0 != ~pumpRunning~0); 41#L298-2true assume !(0 != ~systemActive~0); 38#L305-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#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; 28#L136-3true __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 6#L63true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 182#L69-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 69#L315true assume { :end_inline_timeShift } true; 129#L496-2true [2022-02-21 04:17:10,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:10,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:10,490 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:10,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73969646] [2022-02-21 04:17:10,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:10,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:10,574 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:10,639 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:10,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:10,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1685694358, now seen corresponding path program 1 times [2022-02-21 04:17:10,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:10,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270246560] [2022-02-21 04:17:10,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:10,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:10,664 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:10,669 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:10,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:10,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1253853862, now seen corresponding path program 1 times [2022-02-21 04:17:10,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:10,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91621344] [2022-02-21 04:17:10,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:10,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:10,779 INFO L290 TraceCheckUtils]: 0: Hoare triple {194#true} 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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {196#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:10,780 INFO L290 TraceCheckUtils]: 1: Hoare triple {196#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; {196#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:10,780 INFO L290 TraceCheckUtils]: 2: Hoare triple {196#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {196#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:10,781 INFO L290 TraceCheckUtils]: 3: Hoare triple {196#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; {197#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:17:10,781 INFO L290 TraceCheckUtils]: 4: Hoare triple {197#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; {198#(= |ULTIMATE.start_main_~tmp~1#1| ~systemActive~0)} is VALID [2022-02-21 04:17:10,782 INFO L290 TraceCheckUtils]: 5: Hoare triple {198#(= |ULTIMATE.start_main_~tmp~1#1| ~systemActive~0)} assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:10,782 INFO L290 TraceCheckUtils]: 6: Hoare triple {199#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:10,782 INFO L290 TraceCheckUtils]: 7: Hoare triple {199#(not (= 0 ~systemActive~0))} assume !false; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:10,783 INFO L290 TraceCheckUtils]: 8: Hoare triple {199#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:10,783 INFO L290 TraceCheckUtils]: 9: Hoare triple {199#(not (= 0 ~systemActive~0))} test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:10,784 INFO L290 TraceCheckUtils]: 10: Hoare triple {199#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~6#1); {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:10,785 INFO L290 TraceCheckUtils]: 11: Hoare triple {199#(not (= 0 ~systemActive~0))} test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:10,785 INFO L290 TraceCheckUtils]: 12: Hoare triple {199#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~2#1); {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:10,786 INFO L290 TraceCheckUtils]: 13: Hoare triple {199#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:10,786 INFO L290 TraceCheckUtils]: 14: Hoare triple {199#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:10,786 INFO L290 TraceCheckUtils]: 15: Hoare triple {199#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:10,787 INFO L290 TraceCheckUtils]: 16: Hoare triple {199#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:10,788 INFO L290 TraceCheckUtils]: 17: Hoare triple {199#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {195#false} is VALID [2022-02-21 04:17:10,788 INFO L290 TraceCheckUtils]: 18: Hoare triple {195#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#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; {195#false} is VALID [2022-02-21 04:17:10,789 INFO L290 TraceCheckUtils]: 19: Hoare triple {195#false} __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; {195#false} is VALID [2022-02-21 04:17:10,789 INFO L290 TraceCheckUtils]: 20: Hoare triple {195#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; {195#false} is VALID [2022-02-21 04:17:10,790 INFO L290 TraceCheckUtils]: 21: Hoare triple {195#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {195#false} is VALID [2022-02-21 04:17:10,790 INFO L290 TraceCheckUtils]: 22: Hoare triple {195#false} assume { :end_inline_timeShift } true; {195#false} is VALID [2022-02-21 04:17:10,791 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 04:17:10,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:10,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91621344] [2022-02-21 04:17:10,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91621344] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:10,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:10,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:10,793 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304779545] [2022-02-21 04:17:10,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:10,890 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:10,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:17:10,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:17:10,929 INFO L87 Difference]: Start difference. First operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 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 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:11,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:11,309 INFO L93 Difference]: Finished difference Result 183 states and 238 transitions. [2022-02-21 04:17:11,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:11,310 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:11,329 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:11,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 238 transitions. [2022-02-21 04:17:11,339 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2022-02-21 04:17:11,345 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 173 states and 228 transitions. [2022-02-21 04:17:11,346 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 173 [2022-02-21 04:17:11,347 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 173 [2022-02-21 04:17:11,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 173 states and 228 transitions. [2022-02-21 04:17:11,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:11,348 INFO L681 BuchiCegarLoop]: Abstraction has 173 states and 228 transitions. [2022-02-21 04:17:11,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states and 228 transitions. [2022-02-21 04:17:11,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-02-21 04:17:11,386 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:11,387 INFO L82 GeneralOperation]: Start isEquivalent. First operand 173 states and 228 transitions. Second operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 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 04:17:11,388 INFO L74 IsIncluded]: Start isIncluded. First operand 173 states and 228 transitions. Second operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 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 04:17:11,389 INFO L87 Difference]: Start difference. First operand 173 states and 228 transitions. Second operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 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 04:17:11,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:11,395 INFO L93 Difference]: Finished difference Result 173 states and 228 transitions. [2022-02-21 04:17:11,395 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 228 transitions. [2022-02-21 04:17:11,412 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:11,413 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:11,413 INFO L74 IsIncluded]: Start isIncluded. First operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 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 173 states and 228 transitions. [2022-02-21 04:17:11,414 INFO L87 Difference]: Start difference. First operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 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 173 states and 228 transitions. [2022-02-21 04:17:11,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:11,418 INFO L93 Difference]: Finished difference Result 173 states and 228 transitions. [2022-02-21 04:17:11,418 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 228 transitions. [2022-02-21 04:17:11,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:11,419 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:11,420 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:11,420 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:11,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 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 04:17:11,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 228 transitions. [2022-02-21 04:17:11,425 INFO L704 BuchiCegarLoop]: Abstraction has 173 states and 228 transitions. [2022-02-21 04:17:11,426 INFO L587 BuchiCegarLoop]: Abstraction has 173 states and 228 transitions. [2022-02-21 04:17:11,426 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:11,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173 states and 228 transitions. [2022-02-21 04:17:11,427 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2022-02-21 04:17:11,439 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:11,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:11,440 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:11,440 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] [2022-02-21 04:17:11,441 INFO L791 eck$LassoCheckResult]: Stem: 559#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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 488#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 489#L573 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 507#L566 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 558#L581 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 554#L275 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 555#L248 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 493#L496-2 [2022-02-21 04:17:11,441 INFO L793 eck$LassoCheckResult]: Loop: 493#L496-2 assume !false; 541#L497 assume test_~splverifierCounter~0#1 < 4; 538#L498 test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 539#L506 assume !(0 != test_~tmp~6#1); 544#L506-2 test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 531#L516 assume !(0 != test_~tmp___0~2#1); 466#L516-2 test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 467#L526 assume 0 != test_~tmp___2~0#1; 444#L532-2 assume { :begin_inline_timeShift } true; 445#L298 assume !(0 != ~pumpRunning~0); 460#L298-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 461#L356 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; 398#L330-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 399#L322-3 assume { :end_inline_processEnvironment__wrappee__base } true; 482#L330-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 408#L356-1 assume { :end_inline_processEnvironment } true; 456#L305-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#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; 435#L136-3 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 392#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 393#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 492#L315 assume { :end_inline_timeShift } true; 493#L496-2 [2022-02-21 04:17:11,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:11,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:11,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:11,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225477840] [2022-02-21 04:17:11,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:11,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:11,466 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:11,492 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:11,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:11,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1995003583, now seen corresponding path program 1 times [2022-02-21 04:17:11,493 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:11,493 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709398537] [2022-02-21 04:17:11,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:11,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:11,522 INFO L290 TraceCheckUtils]: 0: Hoare triple {911#true} assume !false; {911#true} is VALID [2022-02-21 04:17:11,522 INFO L290 TraceCheckUtils]: 1: Hoare triple {911#true} assume test_~splverifierCounter~0#1 < 4; {911#true} is VALID [2022-02-21 04:17:11,522 INFO L290 TraceCheckUtils]: 2: Hoare triple {911#true} test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; {911#true} is VALID [2022-02-21 04:17:11,523 INFO L290 TraceCheckUtils]: 3: Hoare triple {911#true} assume !(0 != test_~tmp~6#1); {911#true} is VALID [2022-02-21 04:17:11,523 INFO L290 TraceCheckUtils]: 4: Hoare triple {911#true} test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; {911#true} is VALID [2022-02-21 04:17:11,523 INFO L290 TraceCheckUtils]: 5: Hoare triple {911#true} assume !(0 != test_~tmp___0~2#1); {911#true} is VALID [2022-02-21 04:17:11,523 INFO L290 TraceCheckUtils]: 6: Hoare triple {911#true} test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {911#true} is VALID [2022-02-21 04:17:11,523 INFO L290 TraceCheckUtils]: 7: Hoare triple {911#true} assume 0 != test_~tmp___2~0#1; {911#true} is VALID [2022-02-21 04:17:11,524 INFO L290 TraceCheckUtils]: 8: Hoare triple {911#true} assume { :begin_inline_timeShift } true; {911#true} is VALID [2022-02-21 04:17:11,524 INFO L290 TraceCheckUtils]: 9: Hoare triple {911#true} assume !(0 != ~pumpRunning~0); {913#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:11,524 INFO L290 TraceCheckUtils]: 10: Hoare triple {913#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {913#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:11,525 INFO L290 TraceCheckUtils]: 11: Hoare triple {913#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; {913#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:11,525 INFO L290 TraceCheckUtils]: 12: Hoare triple {913#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {912#false} is VALID [2022-02-21 04:17:11,525 INFO L290 TraceCheckUtils]: 13: Hoare triple {912#false} assume { :end_inline_processEnvironment__wrappee__base } true; {912#false} is VALID [2022-02-21 04:17:11,526 INFO L290 TraceCheckUtils]: 14: Hoare triple {912#false} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {912#false} is VALID [2022-02-21 04:17:11,526 INFO L290 TraceCheckUtils]: 15: Hoare triple {912#false} assume { :end_inline_processEnvironment } true; {912#false} is VALID [2022-02-21 04:17:11,526 INFO L290 TraceCheckUtils]: 16: Hoare triple {912#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#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; {912#false} is VALID [2022-02-21 04:17:11,539 INFO L290 TraceCheckUtils]: 17: Hoare triple {912#false} __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; {912#false} is VALID [2022-02-21 04:17:11,540 INFO L290 TraceCheckUtils]: 18: Hoare triple {912#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; {912#false} is VALID [2022-02-21 04:17:11,540 INFO L290 TraceCheckUtils]: 19: Hoare triple {912#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {912#false} is VALID [2022-02-21 04:17:11,540 INFO L290 TraceCheckUtils]: 20: Hoare triple {912#false} assume { :end_inline_timeShift } true; {912#false} is VALID [2022-02-21 04:17:11,540 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 04:17:11,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:11,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709398537] [2022-02-21 04:17:11,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709398537] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:11,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:11,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:11,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551707821] [2022-02-21 04:17:11,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:11,542 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:11,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:11,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:11,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:11,543 INFO L87 Difference]: Start difference. First operand 173 states and 228 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 04:17:11,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:11,735 INFO L93 Difference]: Finished difference Result 240 states and 305 transitions. [2022-02-21 04:17:11,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:11,736 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 04:17:11,748 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:11,749 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 240 states and 305 transitions. [2022-02-21 04:17:11,755 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 166 [2022-02-21 04:17:11,761 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 240 states to 240 states and 305 transitions. [2022-02-21 04:17:11,761 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 240 [2022-02-21 04:17:11,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 240 [2022-02-21 04:17:11,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 240 states and 305 transitions. [2022-02-21 04:17:11,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:11,763 INFO L681 BuchiCegarLoop]: Abstraction has 240 states and 305 transitions. [2022-02-21 04:17:11,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states and 305 transitions. [2022-02-21 04:17:11,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2022-02-21 04:17:11,769 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:11,770 INFO L82 GeneralOperation]: Start isEquivalent. First operand 240 states and 305 transitions. Second operand has 240 states, 240 states have (on average 1.2708333333333333) internal successors, (305), 239 states have internal predecessors, (305), 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 04:17:11,770 INFO L74 IsIncluded]: Start isIncluded. First operand 240 states and 305 transitions. Second operand has 240 states, 240 states have (on average 1.2708333333333333) internal successors, (305), 239 states have internal predecessors, (305), 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 04:17:11,771 INFO L87 Difference]: Start difference. First operand 240 states and 305 transitions. Second operand has 240 states, 240 states have (on average 1.2708333333333333) internal successors, (305), 239 states have internal predecessors, (305), 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 04:17:11,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:11,776 INFO L93 Difference]: Finished difference Result 240 states and 305 transitions. [2022-02-21 04:17:11,776 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 305 transitions. [2022-02-21 04:17:11,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:11,777 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:11,778 INFO L74 IsIncluded]: Start isIncluded. First operand has 240 states, 240 states have (on average 1.2708333333333333) internal successors, (305), 239 states have internal predecessors, (305), 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 240 states and 305 transitions. [2022-02-21 04:17:11,778 INFO L87 Difference]: Start difference. First operand has 240 states, 240 states have (on average 1.2708333333333333) internal successors, (305), 239 states have internal predecessors, (305), 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 240 states and 305 transitions. [2022-02-21 04:17:11,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:11,784 INFO L93 Difference]: Finished difference Result 240 states and 305 transitions. [2022-02-21 04:17:11,784 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 305 transitions. [2022-02-21 04:17:11,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:11,785 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:11,785 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:11,785 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:11,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 240 states have (on average 1.2708333333333333) internal successors, (305), 239 states have internal predecessors, (305), 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 04:17:11,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 305 transitions. [2022-02-21 04:17:11,791 INFO L704 BuchiCegarLoop]: Abstraction has 240 states and 305 transitions. [2022-02-21 04:17:11,791 INFO L587 BuchiCegarLoop]: Abstraction has 240 states and 305 transitions. [2022-02-21 04:17:11,791 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:11,791 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 240 states and 305 transitions. [2022-02-21 04:17:11,792 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 166 [2022-02-21 04:17:11,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:11,792 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:11,793 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:11,793 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] [2022-02-21 04:17:11,793 INFO L791 eck$LassoCheckResult]: Stem: 1337#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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1255#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 1256#L573 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1274#L566 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1331#L581 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 1329#L275 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 1330#L248 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1258#L496-2 [2022-02-21 04:17:11,793 INFO L793 eck$LassoCheckResult]: Loop: 1258#L496-2 assume !false; 1311#L497 assume test_~splverifierCounter~0#1 < 4; 1307#L498 test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 1308#L506 assume !(0 != test_~tmp~6#1); 1315#L506-2 test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1300#L516 assume !(0 != test_~tmp___0~2#1); 1231#L516-2 test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1232#L526 assume 0 != test_~tmp___2~0#1; 1208#L532-2 assume { :begin_inline_timeShift } true; 1209#L298 assume !(0 != ~pumpRunning~0); 1225#L298-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1226#L356 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; 1168#L330-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1169#L176-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1224#L181-1 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 1275#L475-3 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1154#L475-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1155#L481-1 processEnvironment__wrappee__methaneQuery_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~2#1 := processEnvironment__wrappee__methaneQuery_#t~ret13#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1; 1332#L334-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1287#L322-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1248#L330-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1175#L356-1 assume { :end_inline_processEnvironment } true; 1221#L305-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#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; 1201#L136-3 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 1159#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 1160#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1257#L315 assume { :end_inline_timeShift } true; 1258#L496-2 [2022-02-21 04:17:11,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:11,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:11,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:11,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657003616] [2022-02-21 04:17:11,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:11,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:11,819 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:11,827 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:11,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:11,828 INFO L85 PathProgramCache]: Analyzing trace with hash -413166695, now seen corresponding path program 1 times [2022-02-21 04:17:11,828 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:11,828 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038643379] [2022-02-21 04:17:11,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:11,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:11,835 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:11,840 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:11,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:11,841 INFO L85 PathProgramCache]: Analyzing trace with hash -37878955, now seen corresponding path program 1 times [2022-02-21 04:17:11,841 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:11,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892300857] [2022-02-21 04:17:11,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:11,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:11,878 INFO L290 TraceCheckUtils]: 0: Hoare triple {1881#true} 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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,879 INFO L290 TraceCheckUtils]: 1: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,879 INFO L290 TraceCheckUtils]: 2: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,880 INFO L290 TraceCheckUtils]: 3: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,880 INFO L290 TraceCheckUtils]: 4: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,880 INFO L290 TraceCheckUtils]: 5: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,881 INFO L290 TraceCheckUtils]: 6: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,881 INFO L290 TraceCheckUtils]: 7: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume !false; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,882 INFO L290 TraceCheckUtils]: 8: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,882 INFO L290 TraceCheckUtils]: 9: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,882 INFO L290 TraceCheckUtils]: 10: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~6#1); {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,883 INFO L290 TraceCheckUtils]: 11: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,883 INFO L290 TraceCheckUtils]: 12: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~2#1); {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,883 INFO L290 TraceCheckUtils]: 13: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,884 INFO L290 TraceCheckUtils]: 14: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,884 INFO L290 TraceCheckUtils]: 15: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,884 INFO L290 TraceCheckUtils]: 16: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,885 INFO L290 TraceCheckUtils]: 17: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,885 INFO L290 TraceCheckUtils]: 18: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,886 INFO L290 TraceCheckUtils]: 19: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,886 INFO L290 TraceCheckUtils]: 20: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,886 INFO L290 TraceCheckUtils]: 21: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,887 INFO L290 TraceCheckUtils]: 22: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,887 INFO L290 TraceCheckUtils]: 23: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,887 INFO L290 TraceCheckUtils]: 24: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} processEnvironment__wrappee__methaneQuery_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~2#1 := processEnvironment__wrappee__methaneQuery_#t~ret13#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,888 INFO L290 TraceCheckUtils]: 25: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,888 INFO L290 TraceCheckUtils]: 26: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,888 INFO L290 TraceCheckUtils]: 27: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,889 INFO L290 TraceCheckUtils]: 28: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {1883#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,889 INFO L290 TraceCheckUtils]: 29: Hoare triple {1883#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#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; {1884#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:17:11,890 INFO L290 TraceCheckUtils]: 30: Hoare triple {1884#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; {1885#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~0#1| 0)} is VALID [2022-02-21 04:17:11,890 INFO L290 TraceCheckUtils]: 31: Hoare triple {1885#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~0#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; {1882#false} is VALID [2022-02-21 04:17:11,890 INFO L290 TraceCheckUtils]: 32: Hoare triple {1882#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {1882#false} is VALID [2022-02-21 04:17:11,890 INFO L290 TraceCheckUtils]: 33: Hoare triple {1882#false} assume { :end_inline_timeShift } true; {1882#false} is VALID [2022-02-21 04:17:11,891 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 04:17:11,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:11,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892300857] [2022-02-21 04:17:11,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892300857] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:11,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:11,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:11,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552131386] [2022-02-21 04:17:11,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:12,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:12,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:12,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:12,084 INFO L87 Difference]: Start difference. First operand 240 states and 305 transitions. cyclomatic complexity: 67 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:13,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:13,003 INFO L93 Difference]: Finished difference Result 824 states and 1044 transitions. [2022-02-21 04:17:13,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:13,004 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:13,028 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:13,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 824 states and 1044 transitions. [2022-02-21 04:17:13,058 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 592 [2022-02-21 04:17:13,084 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 824 states to 824 states and 1044 transitions. [2022-02-21 04:17:13,084 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 824 [2022-02-21 04:17:13,085 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 824 [2022-02-21 04:17:13,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 824 states and 1044 transitions. [2022-02-21 04:17:13,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:13,086 INFO L681 BuchiCegarLoop]: Abstraction has 824 states and 1044 transitions. [2022-02-21 04:17:13,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states and 1044 transitions. [2022-02-21 04:17:13,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 473. [2022-02-21 04:17:13,096 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:13,097 INFO L82 GeneralOperation]: Start isEquivalent. First operand 824 states and 1044 transitions. Second operand has 473 states, 473 states have (on average 1.2579281183932347) internal successors, (595), 472 states have internal predecessors, (595), 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 04:17:13,098 INFO L74 IsIncluded]: Start isIncluded. First operand 824 states and 1044 transitions. Second operand has 473 states, 473 states have (on average 1.2579281183932347) internal successors, (595), 472 states have internal predecessors, (595), 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 04:17:13,099 INFO L87 Difference]: Start difference. First operand 824 states and 1044 transitions. Second operand has 473 states, 473 states have (on average 1.2579281183932347) internal successors, (595), 472 states have internal predecessors, (595), 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 04:17:13,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:13,140 INFO L93 Difference]: Finished difference Result 824 states and 1044 transitions. [2022-02-21 04:17:13,141 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1044 transitions. [2022-02-21 04:17:13,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:13,142 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:13,143 INFO L74 IsIncluded]: Start isIncluded. First operand has 473 states, 473 states have (on average 1.2579281183932347) internal successors, (595), 472 states have internal predecessors, (595), 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 824 states and 1044 transitions. [2022-02-21 04:17:13,144 INFO L87 Difference]: Start difference. First operand has 473 states, 473 states have (on average 1.2579281183932347) internal successors, (595), 472 states have internal predecessors, (595), 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 824 states and 1044 transitions. [2022-02-21 04:17:13,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:13,165 INFO L93 Difference]: Finished difference Result 824 states and 1044 transitions. [2022-02-21 04:17:13,165 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1044 transitions. [2022-02-21 04:17:13,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:13,166 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:13,167 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:13,167 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:13,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 473 states have (on average 1.2579281183932347) internal successors, (595), 472 states have internal predecessors, (595), 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 04:17:13,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 595 transitions. [2022-02-21 04:17:13,176 INFO L704 BuchiCegarLoop]: Abstraction has 473 states and 595 transitions. [2022-02-21 04:17:13,176 INFO L587 BuchiCegarLoop]: Abstraction has 473 states and 595 transitions. [2022-02-21 04:17:13,176 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:17:13,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 473 states and 595 transitions. [2022-02-21 04:17:13,178 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 332 [2022-02-21 04:17:13,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:13,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:13,179 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:13,179 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] [2022-02-21 04:17:13,179 INFO L791 eck$LassoCheckResult]: Stem: 2922#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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 2824#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 2825#L573 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2847#L566 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 2916#L581 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 2913#L275 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 2914#L248 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2827#L496-2 [2022-02-21 04:17:13,180 INFO L793 eck$LassoCheckResult]: Loop: 2827#L496-2 assume !false; 2894#L497 assume test_~splverifierCounter~0#1 < 4; 2924#L498 test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 3189#L506 assume !(0 != test_~tmp~6#1); 3187#L506-2 test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 3184#L516 assume !(0 != test_~tmp___0~2#1); 3182#L516-2 test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 3168#L526 assume 0 != test_~tmp___2~0#1; 3162#L532-2 assume { :begin_inline_timeShift } true; 3081#L298 assume !(0 != ~pumpRunning~0); 3080#L298-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 3079#L356 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; 2996#L330-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 3071#L176-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 3070#L181-1 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 3016#L475-3 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3009#L475-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 3008#L481-1 processEnvironment__wrappee__methaneQuery_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~2#1 := processEnvironment__wrappee__methaneQuery_#t~ret13#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1; 2929#L334-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2862#L322-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2817#L330-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2738#L356-1 assume { :end_inline_processEnvironment } true; 2791#L305-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#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; 2763#L136-3 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 2764#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#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; 3069#L168 __utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 3068#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 3067#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2826#L315 assume { :end_inline_timeShift } true; 2827#L496-2 [2022-02-21 04:17:13,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:13,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:17:13,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:13,181 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527186842] [2022-02-21 04:17:13,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:13,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:13,198 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:13,221 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:13,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:13,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1914948628, now seen corresponding path program 1 times [2022-02-21 04:17:13,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:13,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848470665] [2022-02-21 04:17:13,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:13,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:13,228 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:13,245 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:13,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:13,246 INFO L85 PathProgramCache]: Analyzing trace with hash -2040683352, now seen corresponding path program 1 times [2022-02-21 04:17:13,246 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:13,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620202273] [2022-02-21 04:17:13,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:13,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:13,259 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:13,291 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:15,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:15 BoogieIcfgContainer [2022-02-21 04:17:15,888 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:15,888 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:15,888 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:15,888 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:15,889 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:10" (3/4) ... [2022-02-21 04:17:15,891 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:15,921 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:15,921 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:15,922 INFO L158 Benchmark]: Toolchain (without parser) took 6907.92ms. Allocated memory was 90.2MB in the beginning and 213.9MB in the end (delta: 123.7MB). Free memory was 54.5MB in the beginning and 175.7MB in the end (delta: -121.1MB). Peak memory consumption was 992.6kB. Max. memory is 16.1GB. [2022-02-21 04:17:15,922 INFO L158 Benchmark]: CDTParser took 7.93ms. Allocated memory is still 90.2MB. Free memory was 59.8MB in the beginning and 71.7MB in the end (delta: -11.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:15,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.19ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 54.3MB in the beginning and 73.3MB in the end (delta: -19.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-02-21 04:17:15,923 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.70ms. Allocated memory is still 109.1MB. Free memory was 73.3MB in the beginning and 68.7MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:15,923 INFO L158 Benchmark]: Boogie Preprocessor took 57.19ms. Allocated memory is still 109.1MB. Free memory was 68.7MB in the beginning and 65.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:15,923 INFO L158 Benchmark]: RCFGBuilder took 650.86ms. Allocated memory is still 109.1MB. Free memory was 65.6MB in the beginning and 63.1MB in the end (delta: 2.5MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:15,924 INFO L158 Benchmark]: BuchiAutomizer took 5597.85ms. Allocated memory was 109.1MB in the beginning and 213.9MB in the end (delta: 104.9MB). Free memory was 63.1MB in the beginning and 178.8MB in the end (delta: -115.7MB). Peak memory consumption was 88.9MB. Max. memory is 16.1GB. [2022-02-21 04:17:15,924 INFO L158 Benchmark]: Witness Printer took 32.89ms. Allocated memory is still 213.9MB. Free memory was 178.8MB in the beginning and 175.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:15,925 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 7.93ms. Allocated memory is still 90.2MB. Free memory was 59.8MB in the beginning and 71.7MB in the end (delta: -11.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 479.19ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 54.3MB in the beginning and 73.3MB in the end (delta: -19.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.70ms. Allocated memory is still 109.1MB. Free memory was 73.3MB in the beginning and 68.7MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.19ms. Allocated memory is still 109.1MB. Free memory was 68.7MB in the beginning and 65.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 650.86ms. Allocated memory is still 109.1MB. Free memory was 65.6MB in the beginning and 63.1MB in the end (delta: 2.5MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5597.85ms. Allocated memory was 109.1MB in the beginning and 213.9MB in the end (delta: 104.9MB). Free memory was 63.1MB in the beginning and 178.8MB in the end (delta: -115.7MB). Peak memory consumption was 88.9MB. Max. memory is 16.1GB. * Witness Printer took 32.89ms. Allocated memory is still 213.9MB. Free memory was 178.8MB in the beginning and 175.7MB in the end (delta: 3.1MB). 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 6 locations. The remainder module has 473 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.1s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 351 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 473 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1952 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1952 mSDsluCounter, 1895 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1126 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 175 IncrementalHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 769 mSDtfsCounter, 175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 496]: 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, tmp=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52fd548d=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b66ab93=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=0, tmp___0=1, \result=0, tmp=0, retValue_acc=1, retValue_acc=0, \result=1, \result=1, tmp=1, tmp___1=0, tmp___2=29, cleanupTimeShifts=4, \result=0, tmp=1, tmp=0, head=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d6df7d1=0, tmp___1=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d3efac=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c022bd4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@337f9c63=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f6c408f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f0f49be=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c374d40=0, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7663e312=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d9bb975=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 496]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L93] int waterLevel = 1; [L94] int methaneLevelCritical = 0; [L187] int cleanupTimeShifts = 4; [L291] int pumpRunning = 0; [L292] int systemActive = 1; [L764] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L266] int retValue_acc ; [L267] int tmp ; [L271] FCALL select_helpers() [L272] FCALL select_features() [L273] CALL, EXPR valid_product() [L577] int retValue_acc ; [L580] retValue_acc = 1 [L581] return (retValue_acc); [L273] RET, EXPR valid_product() [L273] tmp = valid_product() [L275] COND TRUE \read(tmp) [L277] FCALL setup() [L278] CALL runTest() [L257] CALL test() [L487] int splverifierCounter ; [L488] int tmp ; [L489] int tmp___0 ; [L490] int tmp___1 ; [L491] int tmp___2 ; [L494] splverifierCounter = 0 Loop: [L496] COND TRUE 1 [L498] COND TRUE splverifierCounter < 4 [L504] tmp = __VERIFIER_nondet_int() [L506] COND FALSE !(\read(tmp)) [L514] tmp___0 = __VERIFIER_nondet_int() [L516] COND FALSE !(\read(tmp___0)) [L524] tmp___2 = __VERIFIER_nondet_int() [L526] COND TRUE \read(tmp___2) [L539] CALL timeShift() [L298] COND FALSE !(\read(pumpRunning)) [L305] COND TRUE \read(systemActive) [L307] CALL processEnvironment() [L353] int tmp ; [L356] COND FALSE !(\read(pumpRunning)) [L371] CALL processEnvironment__wrappee__methaneQuery() [L327] int tmp ; [L330] COND TRUE ! pumpRunning [L332] CALL, EXPR isHighWaterLevel() [L467] int retValue_acc ; [L468] int tmp ; [L469] int tmp___0 ; [L473] CALL, EXPR isHighWaterSensorDry() [L173] int retValue_acc ; [L176] COND TRUE waterLevel < 2 [L177] retValue_acc = 1 [L178] return (retValue_acc); [L473] RET, EXPR isHighWaterSensorDry() [L473] tmp = isHighWaterSensorDry() [L475] COND TRUE \read(tmp) [L476] tmp___0 = 0 [L480] retValue_acc = tmp___0 [L481] return (retValue_acc); [L332] RET, EXPR isHighWaterLevel() [L332] tmp = isHighWaterLevel() [L334] COND FALSE !(\read(tmp)) [L340] FCALL processEnvironment__wrappee__base() [L371] RET processEnvironment__wrappee__methaneQuery() [L307] RET processEnvironment() [L313] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L132] int retValue_acc ; [L135] retValue_acc = methaneLevelCritical [L136] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L164] int retValue_acc ; [L167] retValue_acc = waterLevel [L168] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L313] RET __utac_acc__Specification3_spec__1() [L539] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:15,971 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)