./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product33.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_product33.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 e2e0ba6a085074e8295b6882a51ff57a646359fc725b3e12397ae540b49c1d93 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:58,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:58,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:59,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:59,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:59,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:59,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:59,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:59,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:59,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:59,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:59,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:59,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:59,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:59,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:59,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:59,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:59,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:59,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:59,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:59,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:59,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:59,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:59,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:59,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:59,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:59,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:59,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:59,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:59,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:59,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:59,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:59,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:59,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:59,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:59,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:59,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:59,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:59,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:59,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:59,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:59,098 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:59,129 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:59,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:59,130 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:59,130 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:59,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:59,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:59,132 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:59,132 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:59,132 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:59,132 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:59,133 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:59,133 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:59,133 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:59,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:59,134 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:59,134 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:59,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:59,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:59,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:59,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:59,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:59,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:59,135 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:59,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:59,136 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:59,136 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:59,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:59,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:59,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:59,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:59,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:59,138 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:59,138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2e0ba6a085074e8295b6882a51ff57a646359fc725b3e12397ae540b49c1d93 [2022-02-21 04:16:59,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:59,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:59,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:59,395 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:59,396 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:59,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2022-02-21 04:16:59,454 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/824bf8035/a736f2f07d4746a4913eaad5d35a35da/FLAG57a169929 [2022-02-21 04:16:59,867 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:59,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2022-02-21 04:16:59,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/824bf8035/a736f2f07d4746a4913eaad5d35a35da/FLAG57a169929 [2022-02-21 04:16:59,886 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/824bf8035/a736f2f07d4746a4913eaad5d35a35da [2022-02-21 04:16:59,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:59,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:59,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:59,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:59,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:59,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:59" (1/1) ... [2022-02-21 04:16:59,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f1aebb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:59, skipping insertion in model container [2022-02-21 04:16:59,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:59" (1/1) ... [2022-02-21 04:16:59,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:59,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:00,222 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_product33.cil.c[13988,14001] [2022-02-21 04:17:00,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:00,270 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:00,337 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_product33.cil.c[13988,14001] [2022-02-21 04:17:00,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:00,365 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:00,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:00 WrapperNode [2022-02-21 04:17:00,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:00,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:00,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:00,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:00,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:00" (1/1) ... [2022-02-21 04:17:00,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:00" (1/1) ... [2022-02-21 04:17:00,448 INFO L137 Inliner]: procedures = 52, calls = 150, calls flagged for inlining = 47, calls inlined = 50, statements flattened = 422 [2022-02-21 04:17:00,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:00,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:00,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:00,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:00,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:00" (1/1) ... [2022-02-21 04:17:00,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:00" (1/1) ... [2022-02-21 04:17:00,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:00" (1/1) ... [2022-02-21 04:17:00,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:00" (1/1) ... [2022-02-21 04:17:00,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:00" (1/1) ... [2022-02-21 04:17:00,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:00" (1/1) ... [2022-02-21 04:17:00,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:00" (1/1) ... [2022-02-21 04:17:00,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:00,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:00,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:00,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:00,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:00" (1/1) ... [2022-02-21 04:17:00,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:00,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:00,522 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 04:17:00,525 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 04:17:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:00,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:00,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:00,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:00,638 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:00,651 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:01,060 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:01,067 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:01,070 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:01,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:01 BoogieIcfgContainer [2022-02-21 04:17:01,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:01,074 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:01,075 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:01,078 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:01,078 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:01,079 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:59" (1/3) ... [2022-02-21 04:17:01,079 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@277fde93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:01, skipping insertion in model container [2022-02-21 04:17:01,080 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:01,080 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:00" (2/3) ... [2022-02-21 04:17:01,080 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@277fde93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:01, skipping insertion in model container [2022-02-21 04:17:01,080 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:01,080 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:01" (3/3) ... [2022-02-21 04:17:01,082 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product33.cil.c [2022-02-21 04:17:01,125 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:01,125 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:01,125 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:01,125 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:01,125 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:01,125 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:01,125 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:01,125 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:01,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 111 states, 110 states have (on average 1.3909090909090909) internal successors, (153), 110 states have internal predecessors, (153), 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 04:17:01,176 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 70 [2022-02-21 04:17:01,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:01,177 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:01,182 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:01,183 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 04:17:01,183 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:01,187 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 111 states, 110 states have (on average 1.3909090909090909) internal successors, (153), 110 states have internal predecessors, (153), 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 04:17:01,199 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 70 [2022-02-21 04:17:01,202 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:01,202 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:01,203 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:01,203 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 04:17:01,207 INFO L791 eck$LassoCheckResult]: Stem: 107#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 36#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 108#L905true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 84#L898true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 105#L913true main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 23#L239true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 71#L212true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 12#L638-2true [2022-02-21 04:17:01,208 INFO L793 eck$LassoCheckResult]: Loop: 12#L638-2true assume !false; 32#L639true assume test_~splverifierCounter~0#1 < 4; 28#L640true test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 112#L648true assume !(0 != test_~tmp~4#1); 11#L648-2true test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 22#L658true assume !(0 != test_~tmp___0~0#1); 97#L658-2true test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 29#L668true assume 0 != test_~tmp___2~0#1; 49#L674-2true assume { :begin_inline_timeShift } true; 56#L704true assume !(0 != ~pumpRunning~0); 39#L704-2true assume !(0 != ~systemActive~0); 99#L711-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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; 59#L100true __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 76#L858true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 73#L864-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 80#L721true assume { :end_inline_timeShift } true; 12#L638-2true [2022-02-21 04:17:01,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:01,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:01,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:01,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025013941] [2022-02-21 04:17:01,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:01,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:01,331 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:01,422 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:01,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:01,426 INFO L85 PathProgramCache]: Analyzing trace with hash -680982122, now seen corresponding path program 1 times [2022-02-21 04:17:01,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:01,428 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331137765] [2022-02-21 04:17:01,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:01,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:01,458 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:01,468 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:01,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:01,471 INFO L85 PathProgramCache]: Analyzing trace with hash 674436954, now seen corresponding path program 1 times [2022-02-21 04:17:01,471 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:01,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705761190] [2022-02-21 04:17:01,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:01,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:01,643 INFO L290 TraceCheckUtils]: 0: Hoare triple {119#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; {121#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:01,644 INFO L290 TraceCheckUtils]: 1: Hoare triple {121#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {121#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:01,644 INFO L290 TraceCheckUtils]: 2: Hoare triple {121#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {121#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:01,645 INFO L290 TraceCheckUtils]: 3: Hoare triple {121#(= 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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; {122#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:17:01,645 INFO L290 TraceCheckUtils]: 4: Hoare triple {122#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; {123#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} is VALID [2022-02-21 04:17:01,646 INFO L290 TraceCheckUtils]: 5: Hoare triple {123#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:01,647 INFO L290 TraceCheckUtils]: 6: Hoare triple {124#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:01,647 INFO L290 TraceCheckUtils]: 7: Hoare triple {124#(not (= 0 ~systemActive~0))} assume !false; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:01,648 INFO L290 TraceCheckUtils]: 8: Hoare triple {124#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:01,649 INFO L290 TraceCheckUtils]: 9: Hoare triple {124#(not (= 0 ~systemActive~0))} test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:01,649 INFO L290 TraceCheckUtils]: 10: Hoare triple {124#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~4#1); {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:01,650 INFO L290 TraceCheckUtils]: 11: Hoare triple {124#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:01,650 INFO L290 TraceCheckUtils]: 12: Hoare triple {124#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:01,651 INFO L290 TraceCheckUtils]: 13: Hoare triple {124#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:01,651 INFO L290 TraceCheckUtils]: 14: Hoare triple {124#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:01,652 INFO L290 TraceCheckUtils]: 15: Hoare triple {124#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:01,653 INFO L290 TraceCheckUtils]: 16: Hoare triple {124#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:01,653 INFO L290 TraceCheckUtils]: 17: Hoare triple {124#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {120#false} is VALID [2022-02-21 04:17:01,654 INFO L290 TraceCheckUtils]: 18: Hoare triple {120#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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; {120#false} is VALID [2022-02-21 04:17:01,654 INFO L290 TraceCheckUtils]: 19: Hoare triple {120#false} __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; {120#false} is VALID [2022-02-21 04:17:01,654 INFO L290 TraceCheckUtils]: 20: Hoare triple {120#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; {120#false} is VALID [2022-02-21 04:17:01,655 INFO L290 TraceCheckUtils]: 21: Hoare triple {120#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {120#false} is VALID [2022-02-21 04:17:01,656 INFO L290 TraceCheckUtils]: 22: Hoare triple {120#false} assume { :end_inline_timeShift } true; {120#false} is VALID [2022-02-21 04:17:01,658 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 04:17:01,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:01,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705761190] [2022-02-21 04:17:01,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705761190] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:01,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:01,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:01,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831897201] [2022-02-21 04:17:01,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:01,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:01,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:17:01,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:17:01,811 INFO L87 Difference]: Start difference. First operand has 111 states, 110 states have (on average 1.3909090909090909) internal successors, (153), 110 states have internal predecessors, (153), 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 04:17:02,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:02,179 INFO L93 Difference]: Finished difference Result 108 states and 139 transitions. [2022-02-21 04:17:02,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:02,180 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 04:17:02,208 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 04:17:02,221 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 139 transitions. [2022-02-21 04:17:02,228 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2022-02-21 04:17:02,236 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 98 states and 129 transitions. [2022-02-21 04:17:02,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 98 [2022-02-21 04:17:02,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 98 [2022-02-21 04:17:02,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 129 transitions. [2022-02-21 04:17:02,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:02,238 INFO L681 BuchiCegarLoop]: Abstraction has 98 states and 129 transitions. [2022-02-21 04:17:02,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states and 129 transitions. [2022-02-21 04:17:02,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-02-21 04:17:02,260 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:02,261 INFO L82 GeneralOperation]: Start isEquivalent. First operand 98 states and 129 transitions. Second operand has 98 states, 98 states have (on average 1.316326530612245) internal successors, (129), 97 states have internal predecessors, (129), 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 04:17:02,262 INFO L74 IsIncluded]: Start isIncluded. First operand 98 states and 129 transitions. Second operand has 98 states, 98 states have (on average 1.316326530612245) internal successors, (129), 97 states have internal predecessors, (129), 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 04:17:02,264 INFO L87 Difference]: Start difference. First operand 98 states and 129 transitions. Second operand has 98 states, 98 states have (on average 1.316326530612245) internal successors, (129), 97 states have internal predecessors, (129), 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 04:17:02,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:02,268 INFO L93 Difference]: Finished difference Result 98 states and 129 transitions. [2022-02-21 04:17:02,268 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 129 transitions. [2022-02-21 04:17:02,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:02,269 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:02,269 INFO L74 IsIncluded]: Start isIncluded. First operand has 98 states, 98 states have (on average 1.316326530612245) internal successors, (129), 97 states have internal predecessors, (129), 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 98 states and 129 transitions. [2022-02-21 04:17:02,270 INFO L87 Difference]: Start difference. First operand has 98 states, 98 states have (on average 1.316326530612245) internal successors, (129), 97 states have internal predecessors, (129), 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 98 states and 129 transitions. [2022-02-21 04:17:02,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:02,273 INFO L93 Difference]: Finished difference Result 98 states and 129 transitions. [2022-02-21 04:17:02,273 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 129 transitions. [2022-02-21 04:17:02,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:02,274 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:02,274 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:02,274 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:02,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 98 states have (on average 1.316326530612245) internal successors, (129), 97 states have internal predecessors, (129), 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 04:17:02,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 129 transitions. [2022-02-21 04:17:02,278 INFO L704 BuchiCegarLoop]: Abstraction has 98 states and 129 transitions. [2022-02-21 04:17:02,278 INFO L587 BuchiCegarLoop]: Abstraction has 98 states and 129 transitions. [2022-02-21 04:17:02,278 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:02,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states and 129 transitions. [2022-02-21 04:17:02,279 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2022-02-21 04:17:02,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:02,280 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:02,280 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:02,280 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:02,280 INFO L791 eck$LassoCheckResult]: Stem: 334#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 283#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 284#L905 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 326#L898 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 327#L913 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 266#L239 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 267#L212 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 249#L638-2 [2022-02-21 04:17:02,291 INFO L793 eck$LassoCheckResult]: Loop: 249#L638-2 assume !false; 250#L639 assume test_~splverifierCounter~0#1 < 4; 271#L640 test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 272#L648 assume !(0 != test_~tmp~4#1); 247#L648-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 248#L658 assume !(0 != test_~tmp___0~0#1); 242#L658-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 273#L668 assume 0 != test_~tmp___2~0#1; 260#L674-2 assume { :begin_inline_timeShift } true; 303#L704 assume !(0 != ~pumpRunning~0); 261#L704-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 278#L736 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 279#L728-1 assume { :end_inline_processEnvironment__wrappee__base } true; 304#L736-1 assume { :end_inline_processEnvironment } true; 317#L711-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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; 311#L100 __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 312#L858 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 270#L864-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 322#L721 assume { :end_inline_timeShift } true; 249#L638-2 [2022-02-21 04:17:02,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:02,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:02,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:02,293 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324544733] [2022-02-21 04:17:02,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:02,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:02,308 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:02,330 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:02,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:02,331 INFO L85 PathProgramCache]: Analyzing trace with hash -232261579, now seen corresponding path program 1 times [2022-02-21 04:17:02,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:02,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473038489] [2022-02-21 04:17:02,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:02,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:02,364 INFO L290 TraceCheckUtils]: 0: Hoare triple {536#true} assume !false; {536#true} is VALID [2022-02-21 04:17:02,365 INFO L290 TraceCheckUtils]: 1: Hoare triple {536#true} assume test_~splverifierCounter~0#1 < 4; {536#true} is VALID [2022-02-21 04:17:02,365 INFO L290 TraceCheckUtils]: 2: Hoare triple {536#true} test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {536#true} is VALID [2022-02-21 04:17:02,365 INFO L290 TraceCheckUtils]: 3: Hoare triple {536#true} assume !(0 != test_~tmp~4#1); {536#true} is VALID [2022-02-21 04:17:02,365 INFO L290 TraceCheckUtils]: 4: Hoare triple {536#true} test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {536#true} is VALID [2022-02-21 04:17:02,365 INFO L290 TraceCheckUtils]: 5: Hoare triple {536#true} assume !(0 != test_~tmp___0~0#1); {536#true} is VALID [2022-02-21 04:17:02,366 INFO L290 TraceCheckUtils]: 6: Hoare triple {536#true} test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {536#true} is VALID [2022-02-21 04:17:02,366 INFO L290 TraceCheckUtils]: 7: Hoare triple {536#true} assume 0 != test_~tmp___2~0#1; {536#true} is VALID [2022-02-21 04:17:02,366 INFO L290 TraceCheckUtils]: 8: Hoare triple {536#true} assume { :begin_inline_timeShift } true; {536#true} is VALID [2022-02-21 04:17:02,367 INFO L290 TraceCheckUtils]: 9: Hoare triple {536#true} assume !(0 != ~pumpRunning~0); {538#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:02,367 INFO L290 TraceCheckUtils]: 10: Hoare triple {538#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {538#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:02,368 INFO L290 TraceCheckUtils]: 11: Hoare triple {538#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {537#false} is VALID [2022-02-21 04:17:02,368 INFO L290 TraceCheckUtils]: 12: Hoare triple {537#false} assume { :end_inline_processEnvironment__wrappee__base } true; {537#false} is VALID [2022-02-21 04:17:02,368 INFO L290 TraceCheckUtils]: 13: Hoare triple {537#false} assume { :end_inline_processEnvironment } true; {537#false} is VALID [2022-02-21 04:17:02,368 INFO L290 TraceCheckUtils]: 14: Hoare triple {537#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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; {537#false} is VALID [2022-02-21 04:17:02,369 INFO L290 TraceCheckUtils]: 15: Hoare triple {537#false} __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; {537#false} is VALID [2022-02-21 04:17:02,369 INFO L290 TraceCheckUtils]: 16: Hoare triple {537#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; {537#false} is VALID [2022-02-21 04:17:02,369 INFO L290 TraceCheckUtils]: 17: Hoare triple {537#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {537#false} is VALID [2022-02-21 04:17:02,369 INFO L290 TraceCheckUtils]: 18: Hoare triple {537#false} assume { :end_inline_timeShift } true; {537#false} is VALID [2022-02-21 04:17:02,370 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 04:17:02,370 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:02,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473038489] [2022-02-21 04:17:02,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473038489] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:02,370 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:02,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:02,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757050870] [2022-02-21 04:17:02,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:02,371 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:02,372 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:02,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:02,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:02,373 INFO L87 Difference]: Start difference. First operand 98 states and 129 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:02,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:02,564 INFO L93 Difference]: Finished difference Result 156 states and 200 transitions. [2022-02-21 04:17:02,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:02,564 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:02,582 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:02,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 156 states and 200 transitions. [2022-02-21 04:17:02,588 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2022-02-21 04:17:02,593 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 156 states to 156 states and 200 transitions. [2022-02-21 04:17:02,593 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 156 [2022-02-21 04:17:02,593 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 156 [2022-02-21 04:17:02,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 156 states and 200 transitions. [2022-02-21 04:17:02,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:02,594 INFO L681 BuchiCegarLoop]: Abstraction has 156 states and 200 transitions. [2022-02-21 04:17:02,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states and 200 transitions. [2022-02-21 04:17:02,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2022-02-21 04:17:02,600 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:02,601 INFO L82 GeneralOperation]: Start isEquivalent. First operand 156 states and 200 transitions. Second operand has 156 states, 156 states have (on average 1.2820512820512822) internal successors, (200), 155 states have internal predecessors, (200), 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 04:17:02,601 INFO L74 IsIncluded]: Start isIncluded. First operand 156 states and 200 transitions. Second operand has 156 states, 156 states have (on average 1.2820512820512822) internal successors, (200), 155 states have internal predecessors, (200), 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 04:17:02,602 INFO L87 Difference]: Start difference. First operand 156 states and 200 transitions. Second operand has 156 states, 156 states have (on average 1.2820512820512822) internal successors, (200), 155 states have internal predecessors, (200), 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 04:17:02,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:02,606 INFO L93 Difference]: Finished difference Result 156 states and 200 transitions. [2022-02-21 04:17:02,607 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 200 transitions. [2022-02-21 04:17:02,608 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:02,608 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:02,608 INFO L74 IsIncluded]: Start isIncluded. First operand has 156 states, 156 states have (on average 1.2820512820512822) internal successors, (200), 155 states have internal predecessors, (200), 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 156 states and 200 transitions. [2022-02-21 04:17:02,609 INFO L87 Difference]: Start difference. First operand has 156 states, 156 states have (on average 1.2820512820512822) internal successors, (200), 155 states have internal predecessors, (200), 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 156 states and 200 transitions. [2022-02-21 04:17:02,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:02,613 INFO L93 Difference]: Finished difference Result 156 states and 200 transitions. [2022-02-21 04:17:02,614 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 200 transitions. [2022-02-21 04:17:02,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:02,615 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:02,615 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:02,615 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:02,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 156 states have (on average 1.2820512820512822) internal successors, (200), 155 states have internal predecessors, (200), 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 04:17:02,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 200 transitions. [2022-02-21 04:17:02,620 INFO L704 BuchiCegarLoop]: Abstraction has 156 states and 200 transitions. [2022-02-21 04:17:02,621 INFO L587 BuchiCegarLoop]: Abstraction has 156 states and 200 transitions. [2022-02-21 04:17:02,621 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:02,621 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 156 states and 200 transitions. [2022-02-21 04:17:02,623 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2022-02-21 04:17:02,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:02,625 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:02,625 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:02,626 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:02,626 INFO L791 eck$LassoCheckResult]: Stem: 806#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 742#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 743#L905 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 791#L898 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 792#L913 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 725#L239 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 726#L212 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 783#L638-2 [2022-02-21 04:17:02,627 INFO L793 eck$LassoCheckResult]: Loop: 783#L638-2 assume !false; 817#L639 assume test_~splverifierCounter~0#1 < 4; 730#L640 test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 731#L648 assume !(0 != test_~tmp~4#1); 818#L648-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 815#L658 assume !(0 != test_~tmp___0~0#1); 801#L658-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 732#L668 assume 0 != test_~tmp___2~0#1; 718#L674-2 assume { :begin_inline_timeShift } true; 770#L704 assume !(0 != ~pumpRunning~0); 746#L704-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 738#L736 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#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; 739#L140 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 771#L145 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 733#L838 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 734#L838-2 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 785#L844 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 752#L740 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 753#L728 assume { :end_inline_processEnvironment__wrappee__base } true; 780#L736-1 assume { :end_inline_processEnvironment } true; 827#L711-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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; 826#L100 __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 822#L858 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 820#L864-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 819#L721 assume { :end_inline_timeShift } true; 783#L638-2 [2022-02-21 04:17:02,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:02,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:02,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:02,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109209309] [2022-02-21 04:17:02,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:02,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:02,646 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:02,673 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:02,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:02,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1748481025, now seen corresponding path program 1 times [2022-02-21 04:17:02,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:02,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221103760] [2022-02-21 04:17:02,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:02,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:02,714 INFO L290 TraceCheckUtils]: 0: Hoare triple {1168#true} assume !false; {1168#true} is VALID [2022-02-21 04:17:02,714 INFO L290 TraceCheckUtils]: 1: Hoare triple {1168#true} assume test_~splverifierCounter~0#1 < 4; {1168#true} is VALID [2022-02-21 04:17:02,714 INFO L290 TraceCheckUtils]: 2: Hoare triple {1168#true} test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {1168#true} is VALID [2022-02-21 04:17:02,715 INFO L290 TraceCheckUtils]: 3: Hoare triple {1168#true} assume !(0 != test_~tmp~4#1); {1168#true} is VALID [2022-02-21 04:17:02,715 INFO L290 TraceCheckUtils]: 4: Hoare triple {1168#true} test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {1168#true} is VALID [2022-02-21 04:17:02,725 INFO L290 TraceCheckUtils]: 5: Hoare triple {1168#true} assume !(0 != test_~tmp___0~0#1); {1168#true} is VALID [2022-02-21 04:17:02,725 INFO L290 TraceCheckUtils]: 6: Hoare triple {1168#true} test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {1168#true} is VALID [2022-02-21 04:17:02,729 INFO L290 TraceCheckUtils]: 7: Hoare triple {1168#true} assume 0 != test_~tmp___2~0#1; {1168#true} is VALID [2022-02-21 04:17:02,730 INFO L290 TraceCheckUtils]: 8: Hoare triple {1168#true} assume { :begin_inline_timeShift } true; {1168#true} is VALID [2022-02-21 04:17:02,730 INFO L290 TraceCheckUtils]: 9: Hoare triple {1168#true} assume !(0 != ~pumpRunning~0); {1168#true} is VALID [2022-02-21 04:17:02,732 INFO L290 TraceCheckUtils]: 10: Hoare triple {1168#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {1168#true} is VALID [2022-02-21 04:17:02,732 INFO L290 TraceCheckUtils]: 11: Hoare triple {1168#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#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; {1168#true} is VALID [2022-02-21 04:17:02,733 INFO L290 TraceCheckUtils]: 12: Hoare triple {1168#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; {1170#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} is VALID [2022-02-21 04:17:02,734 INFO L290 TraceCheckUtils]: 13: Hoare triple {1170#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; {1171#(= |ULTIMATE.start_isHighWaterLevel_~tmp~6#1| 0)} is VALID [2022-02-21 04:17:02,734 INFO L290 TraceCheckUtils]: 14: Hoare triple {1171#(= |ULTIMATE.start_isHighWaterLevel_~tmp~6#1| 0)} assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; {1169#false} is VALID [2022-02-21 04:17:02,734 INFO L290 TraceCheckUtils]: 15: Hoare triple {1169#false} isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; {1169#false} is VALID [2022-02-21 04:17:02,735 INFO L290 TraceCheckUtils]: 16: Hoare triple {1169#false} processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; {1169#false} is VALID [2022-02-21 04:17:02,735 INFO L290 TraceCheckUtils]: 17: Hoare triple {1169#false} assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {1169#false} is VALID [2022-02-21 04:17:02,735 INFO L290 TraceCheckUtils]: 18: Hoare triple {1169#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1169#false} is VALID [2022-02-21 04:17:02,735 INFO L290 TraceCheckUtils]: 19: Hoare triple {1169#false} assume { :end_inline_processEnvironment } true; {1169#false} is VALID [2022-02-21 04:17:02,735 INFO L290 TraceCheckUtils]: 20: Hoare triple {1169#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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; {1169#false} is VALID [2022-02-21 04:17:02,736 INFO L290 TraceCheckUtils]: 21: Hoare triple {1169#false} __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; {1169#false} is VALID [2022-02-21 04:17:02,736 INFO L290 TraceCheckUtils]: 22: Hoare triple {1169#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; {1169#false} is VALID [2022-02-21 04:17:02,736 INFO L290 TraceCheckUtils]: 23: Hoare triple {1169#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {1169#false} is VALID [2022-02-21 04:17:02,737 INFO L290 TraceCheckUtils]: 24: Hoare triple {1169#false} assume { :end_inline_timeShift } true; {1169#false} is VALID [2022-02-21 04:17:02,738 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 04:17:02,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:02,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221103760] [2022-02-21 04:17:02,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221103760] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:02,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:02,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:02,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968941211] [2022-02-21 04:17:02,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:02,740 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:02,740 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:02,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 04:17:02,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 04:17:02,742 INFO L87 Difference]: Start difference. First operand 156 states and 200 transitions. cyclomatic complexity: 46 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:03,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:03,122 INFO L93 Difference]: Finished difference Result 442 states and 562 transitions. [2022-02-21 04:17:03,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:03,123 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:03,142 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:03,143 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 442 states and 562 transitions. [2022-02-21 04:17:03,157 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 322 [2022-02-21 04:17:03,171 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 442 states to 442 states and 562 transitions. [2022-02-21 04:17:03,172 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 442 [2022-02-21 04:17:03,172 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 442 [2022-02-21 04:17:03,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 442 states and 562 transitions. [2022-02-21 04:17:03,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:03,174 INFO L681 BuchiCegarLoop]: Abstraction has 442 states and 562 transitions. [2022-02-21 04:17:03,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states and 562 transitions. [2022-02-21 04:17:03,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 162. [2022-02-21 04:17:03,194 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:03,195 INFO L82 GeneralOperation]: Start isEquivalent. First operand 442 states and 562 transitions. Second operand has 162 states, 162 states have (on average 1.271604938271605) internal successors, (206), 161 states have internal predecessors, (206), 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 04:17:03,196 INFO L74 IsIncluded]: Start isIncluded. First operand 442 states and 562 transitions. Second operand has 162 states, 162 states have (on average 1.271604938271605) internal successors, (206), 161 states have internal predecessors, (206), 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 04:17:03,196 INFO L87 Difference]: Start difference. First operand 442 states and 562 transitions. Second operand has 162 states, 162 states have (on average 1.271604938271605) internal successors, (206), 161 states have internal predecessors, (206), 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 04:17:03,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:03,209 INFO L93 Difference]: Finished difference Result 442 states and 562 transitions. [2022-02-21 04:17:03,209 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 562 transitions. [2022-02-21 04:17:03,213 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:03,213 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:03,214 INFO L74 IsIncluded]: Start isIncluded. First operand has 162 states, 162 states have (on average 1.271604938271605) internal successors, (206), 161 states have internal predecessors, (206), 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 442 states and 562 transitions. [2022-02-21 04:17:03,214 INFO L87 Difference]: Start difference. First operand has 162 states, 162 states have (on average 1.271604938271605) internal successors, (206), 161 states have internal predecessors, (206), 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 442 states and 562 transitions. [2022-02-21 04:17:03,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:03,227 INFO L93 Difference]: Finished difference Result 442 states and 562 transitions. [2022-02-21 04:17:03,227 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 562 transitions. [2022-02-21 04:17:03,228 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:03,228 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:03,228 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:03,228 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:03,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 162 states have (on average 1.271604938271605) internal successors, (206), 161 states have internal predecessors, (206), 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 04:17:03,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 206 transitions. [2022-02-21 04:17:03,233 INFO L704 BuchiCegarLoop]: Abstraction has 162 states and 206 transitions. [2022-02-21 04:17:03,233 INFO L587 BuchiCegarLoop]: Abstraction has 162 states and 206 transitions. [2022-02-21 04:17:03,233 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:17:03,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 162 states and 206 transitions. [2022-02-21 04:17:03,235 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2022-02-21 04:17:03,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:03,236 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:03,237 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:03,237 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:03,237 INFO L791 eck$LassoCheckResult]: Stem: 1731#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1665#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1666#L905 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1716#L898 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1717#L913 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 1647#L239 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1648#L212 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1629#L638-2 [2022-02-21 04:17:03,238 INFO L793 eck$LassoCheckResult]: Loop: 1629#L638-2 assume !false; 1630#L639 assume test_~splverifierCounter~0#1 < 4; 1659#L640 test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 1753#L648 assume !(0 != test_~tmp~4#1); 1751#L648-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 1645#L658 assume !(0 != test_~tmp___0~0#1); 1622#L658-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 1654#L668 assume 0 != test_~tmp___2~0#1; 1639#L674-2 assume { :begin_inline_timeShift } true; 1686#L704 assume !(0 != ~pumpRunning~0); 1670#L704-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1660#L736 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#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; 1661#L140 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1694#L145 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 1655#L838 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1656#L838-2 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1711#L844 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 1676#L740 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1677#L728 assume { :end_inline_processEnvironment__wrappee__base } true; 1706#L736-1 assume { :end_inline_processEnvironment } true; 1707#L711-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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; 1698#L100 __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 1699#L858 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 1651#L864-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1712#L721 assume { :end_inline_timeShift } true; 1629#L638-2 [2022-02-21 04:17:03,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:03,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:17:03,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:03,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819401321] [2022-02-21 04:17:03,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:03,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:03,250 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:03,259 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:03,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:03,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1047416447, now seen corresponding path program 1 times [2022-02-21 04:17:03,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:03,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967479215] [2022-02-21 04:17:03,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:03,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:03,293 INFO L290 TraceCheckUtils]: 0: Hoare triple {2668#true} assume !false; {2668#true} is VALID [2022-02-21 04:17:03,293 INFO L290 TraceCheckUtils]: 1: Hoare triple {2668#true} assume test_~splverifierCounter~0#1 < 4; {2668#true} is VALID [2022-02-21 04:17:03,294 INFO L290 TraceCheckUtils]: 2: Hoare triple {2668#true} test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {2668#true} is VALID [2022-02-21 04:17:03,294 INFO L290 TraceCheckUtils]: 3: Hoare triple {2668#true} assume !(0 != test_~tmp~4#1); {2668#true} is VALID [2022-02-21 04:17:03,294 INFO L290 TraceCheckUtils]: 4: Hoare triple {2668#true} test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {2668#true} is VALID [2022-02-21 04:17:03,294 INFO L290 TraceCheckUtils]: 5: Hoare triple {2668#true} assume !(0 != test_~tmp___0~0#1); {2668#true} is VALID [2022-02-21 04:17:03,295 INFO L290 TraceCheckUtils]: 6: Hoare triple {2668#true} test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {2668#true} is VALID [2022-02-21 04:17:03,295 INFO L290 TraceCheckUtils]: 7: Hoare triple {2668#true} assume 0 != test_~tmp___2~0#1; {2668#true} is VALID [2022-02-21 04:17:03,295 INFO L290 TraceCheckUtils]: 8: Hoare triple {2668#true} assume { :begin_inline_timeShift } true; {2668#true} is VALID [2022-02-21 04:17:03,295 INFO L290 TraceCheckUtils]: 9: Hoare triple {2668#true} assume !(0 != ~pumpRunning~0); {2668#true} is VALID [2022-02-21 04:17:03,295 INFO L290 TraceCheckUtils]: 10: Hoare triple {2668#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {2668#true} is VALID [2022-02-21 04:17:03,296 INFO L290 TraceCheckUtils]: 11: Hoare triple {2668#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#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; {2668#true} is VALID [2022-02-21 04:17:03,296 INFO L290 TraceCheckUtils]: 12: Hoare triple {2668#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; {2668#true} is VALID [2022-02-21 04:17:03,296 INFO L290 TraceCheckUtils]: 13: Hoare triple {2668#true} isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; {2668#true} is VALID [2022-02-21 04:17:03,298 INFO L290 TraceCheckUtils]: 14: Hoare triple {2668#true} assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; {2670#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~1#1|)} is VALID [2022-02-21 04:17:03,299 INFO L290 TraceCheckUtils]: 15: Hoare triple {2670#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~1#1|)} isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; {2671#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} is VALID [2022-02-21 04:17:03,301 INFO L290 TraceCheckUtils]: 16: Hoare triple {2671#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; {2672#(<= 1 |ULTIMATE.start_processEnvironment_~tmp~5#1|)} is VALID [2022-02-21 04:17:03,301 INFO L290 TraceCheckUtils]: 17: Hoare triple {2672#(<= 1 |ULTIMATE.start_processEnvironment_~tmp~5#1|)} assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2669#false} is VALID [2022-02-21 04:17:03,301 INFO L290 TraceCheckUtils]: 18: Hoare triple {2669#false} assume { :end_inline_processEnvironment__wrappee__base } true; {2669#false} is VALID [2022-02-21 04:17:03,302 INFO L290 TraceCheckUtils]: 19: Hoare triple {2669#false} assume { :end_inline_processEnvironment } true; {2669#false} is VALID [2022-02-21 04:17:03,302 INFO L290 TraceCheckUtils]: 20: Hoare triple {2669#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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; {2669#false} is VALID [2022-02-21 04:17:03,302 INFO L290 TraceCheckUtils]: 21: Hoare triple {2669#false} __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; {2669#false} is VALID [2022-02-21 04:17:03,302 INFO L290 TraceCheckUtils]: 22: Hoare triple {2669#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; {2669#false} is VALID [2022-02-21 04:17:03,302 INFO L290 TraceCheckUtils]: 23: Hoare triple {2669#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {2669#false} is VALID [2022-02-21 04:17:03,303 INFO L290 TraceCheckUtils]: 24: Hoare triple {2669#false} assume { :end_inline_timeShift } true; {2669#false} is VALID [2022-02-21 04:17:03,303 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 04:17:03,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:03,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967479215] [2022-02-21 04:17:03,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967479215] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:03,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:03,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:03,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154897047] [2022-02-21 04:17:03,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:03,305 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:03,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:03,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:03,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:03,306 INFO L87 Difference]: Start difference. First operand 162 states and 206 transitions. cyclomatic complexity: 46 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:03,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:03,778 INFO L93 Difference]: Finished difference Result 311 states and 396 transitions. [2022-02-21 04:17:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:03,779 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:03,798 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:03,799 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 311 states and 396 transitions. [2022-02-21 04:17:03,809 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 224 [2022-02-21 04:17:03,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 311 states to 311 states and 396 transitions. [2022-02-21 04:17:03,829 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 311 [2022-02-21 04:17:03,829 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 311 [2022-02-21 04:17:03,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 311 states and 396 transitions. [2022-02-21 04:17:03,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:03,830 INFO L681 BuchiCegarLoop]: Abstraction has 311 states and 396 transitions. [2022-02-21 04:17:03,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states and 396 transitions. [2022-02-21 04:17:03,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 171. [2022-02-21 04:17:03,834 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:03,834 INFO L82 GeneralOperation]: Start isEquivalent. First operand 311 states and 396 transitions. Second operand has 171 states, 171 states have (on average 1.2573099415204678) internal successors, (215), 170 states have internal predecessors, (215), 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 04:17:03,835 INFO L74 IsIncluded]: Start isIncluded. First operand 311 states and 396 transitions. Second operand has 171 states, 171 states have (on average 1.2573099415204678) internal successors, (215), 170 states have internal predecessors, (215), 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 04:17:03,836 INFO L87 Difference]: Start difference. First operand 311 states and 396 transitions. Second operand has 171 states, 171 states have (on average 1.2573099415204678) internal successors, (215), 170 states have internal predecessors, (215), 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 04:17:03,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:03,843 INFO L93 Difference]: Finished difference Result 311 states and 396 transitions. [2022-02-21 04:17:03,843 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 396 transitions. [2022-02-21 04:17:03,843 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:03,843 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:03,844 INFO L74 IsIncluded]: Start isIncluded. First operand has 171 states, 171 states have (on average 1.2573099415204678) internal successors, (215), 170 states have internal predecessors, (215), 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 311 states and 396 transitions. [2022-02-21 04:17:03,845 INFO L87 Difference]: Start difference. First operand has 171 states, 171 states have (on average 1.2573099415204678) internal successors, (215), 170 states have internal predecessors, (215), 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 311 states and 396 transitions. [2022-02-21 04:17:03,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:03,851 INFO L93 Difference]: Finished difference Result 311 states and 396 transitions. [2022-02-21 04:17:03,851 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 396 transitions. [2022-02-21 04:17:03,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:03,852 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:03,852 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:03,852 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:03,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 171 states have (on average 1.2573099415204678) internal successors, (215), 170 states have internal predecessors, (215), 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 04:17:03,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 215 transitions. [2022-02-21 04:17:03,856 INFO L704 BuchiCegarLoop]: Abstraction has 171 states and 215 transitions. [2022-02-21 04:17:03,856 INFO L587 BuchiCegarLoop]: Abstraction has 171 states and 215 transitions. [2022-02-21 04:17:03,856 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:17:03,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 215 transitions. [2022-02-21 04:17:03,857 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2022-02-21 04:17:03,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:03,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:03,858 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:03,858 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:03,858 INFO L791 eck$LassoCheckResult]: Stem: 3103#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 3039#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 3040#L905 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3088#L898 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 3089#L913 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 3020#L239 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 3021#L212 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3081#L638-2 [2022-02-21 04:17:03,858 INFO L793 eck$LassoCheckResult]: Loop: 3081#L638-2 assume !false; 3032#L639 assume test_~splverifierCounter~0#1 < 4; 3033#L640 test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 3150#L648 assume !(0 != test_~tmp~4#1); 3148#L648-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 3146#L658 assume !(0 != test_~tmp___0~0#1); 3144#L658-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 3027#L668 assume 0 != test_~tmp___2~0#1; 3011#L674-2 assume { :begin_inline_timeShift } true; 3059#L704 assume !(0 != ~pumpRunning~0); 3044#L704-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 3034#L736 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#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; 3035#L140 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 3068#L145 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 3114#L838 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3112#L838-2 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 3111#L844 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 3110#L740 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3077#L728 assume { :end_inline_processEnvironment__wrappee__base } true; 3078#L736-1 assume { :end_inline_processEnvironment } true; 3160#L711-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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; 3159#L100 __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 3155#L858 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 3153#L864-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3152#L721 assume { :end_inline_timeShift } true; 3081#L638-2 [2022-02-21 04:17:03,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:03,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-02-21 04:17:03,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:03,860 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599345589] [2022-02-21 04:17:03,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:03,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:03,877 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:03,887 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:03,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:03,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1161675011, now seen corresponding path program 1 times [2022-02-21 04:17:03,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:03,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109559754] [2022-02-21 04:17:03,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:03,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:03,894 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:03,900 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:03,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:03,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1882287545, now seen corresponding path program 1 times [2022-02-21 04:17:03,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:03,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984201418] [2022-02-21 04:17:03,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:03,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:03,940 INFO L290 TraceCheckUtils]: 0: Hoare triple {3790#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,941 INFO L290 TraceCheckUtils]: 1: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,941 INFO L290 TraceCheckUtils]: 2: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,942 INFO L290 TraceCheckUtils]: 3: Hoare triple {3792#(= ~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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,942 INFO L290 TraceCheckUtils]: 4: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,943 INFO L290 TraceCheckUtils]: 5: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,943 INFO L290 TraceCheckUtils]: 6: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,943 INFO L290 TraceCheckUtils]: 7: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume !false; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,944 INFO L290 TraceCheckUtils]: 8: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,944 INFO L290 TraceCheckUtils]: 9: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,945 INFO L290 TraceCheckUtils]: 10: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~4#1); {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,945 INFO L290 TraceCheckUtils]: 11: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,945 INFO L290 TraceCheckUtils]: 12: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~0#1); {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,946 INFO L290 TraceCheckUtils]: 13: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,946 INFO L290 TraceCheckUtils]: 14: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,947 INFO L290 TraceCheckUtils]: 15: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,947 INFO L290 TraceCheckUtils]: 16: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,947 INFO L290 TraceCheckUtils]: 17: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,948 INFO L290 TraceCheckUtils]: 18: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#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; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,948 INFO L290 TraceCheckUtils]: 19: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,949 INFO L290 TraceCheckUtils]: 20: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,949 INFO L290 TraceCheckUtils]: 21: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,950 INFO L290 TraceCheckUtils]: 22: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,950 INFO L290 TraceCheckUtils]: 23: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,950 INFO L290 TraceCheckUtils]: 24: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,951 INFO L290 TraceCheckUtils]: 25: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,951 INFO L290 TraceCheckUtils]: 26: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {3792#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:03,952 INFO L290 TraceCheckUtils]: 27: Hoare triple {3792#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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; {3793#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:17:03,952 INFO L290 TraceCheckUtils]: 28: Hoare triple {3793#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; {3794#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~7#1| 0)} is VALID [2022-02-21 04:17:03,953 INFO L290 TraceCheckUtils]: 29: Hoare triple {3794#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~7#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; {3791#false} is VALID [2022-02-21 04:17:03,953 INFO L290 TraceCheckUtils]: 30: Hoare triple {3791#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {3791#false} is VALID [2022-02-21 04:17:03,953 INFO L290 TraceCheckUtils]: 31: Hoare triple {3791#false} assume { :end_inline_timeShift } true; {3791#false} is VALID [2022-02-21 04:17:03,953 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 04:17:03,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:03,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984201418] [2022-02-21 04:17:03,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984201418] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:03,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:03,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:03,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577565613] [2022-02-21 04:17:03,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:04,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:04,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:04,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:04,175 INFO L87 Difference]: Start difference. First operand 171 states and 215 transitions. cyclomatic complexity: 46 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:04,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:04,725 INFO L93 Difference]: Finished difference Result 599 states and 748 transitions. [2022-02-21 04:17:04,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:04,725 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:04,755 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:04,758 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 599 states and 748 transitions. [2022-02-21 04:17:04,783 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 442 [2022-02-21 04:17:04,800 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 599 states to 599 states and 748 transitions. [2022-02-21 04:17:04,800 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 599 [2022-02-21 04:17:04,801 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 599 [2022-02-21 04:17:04,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 599 states and 748 transitions. [2022-02-21 04:17:04,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:04,802 INFO L681 BuchiCegarLoop]: Abstraction has 599 states and 748 transitions. [2022-02-21 04:17:04,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states and 748 transitions. [2022-02-21 04:17:04,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 335. [2022-02-21 04:17:04,810 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:04,811 INFO L82 GeneralOperation]: Start isEquivalent. First operand 599 states and 748 transitions. Second operand has 335 states, 335 states have (on average 1.2388059701492538) internal successors, (415), 334 states have internal predecessors, (415), 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 04:17:04,812 INFO L74 IsIncluded]: Start isIncluded. First operand 599 states and 748 transitions. Second operand has 335 states, 335 states have (on average 1.2388059701492538) internal successors, (415), 334 states have internal predecessors, (415), 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 04:17:04,813 INFO L87 Difference]: Start difference. First operand 599 states and 748 transitions. Second operand has 335 states, 335 states have (on average 1.2388059701492538) internal successors, (415), 334 states have internal predecessors, (415), 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 04:17:04,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:04,829 INFO L93 Difference]: Finished difference Result 599 states and 748 transitions. [2022-02-21 04:17:04,829 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 748 transitions. [2022-02-21 04:17:04,830 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:04,830 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:04,831 INFO L74 IsIncluded]: Start isIncluded. First operand has 335 states, 335 states have (on average 1.2388059701492538) internal successors, (415), 334 states have internal predecessors, (415), 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 599 states and 748 transitions. [2022-02-21 04:17:04,832 INFO L87 Difference]: Start difference. First operand has 335 states, 335 states have (on average 1.2388059701492538) internal successors, (415), 334 states have internal predecessors, (415), 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 599 states and 748 transitions. [2022-02-21 04:17:04,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:04,857 INFO L93 Difference]: Finished difference Result 599 states and 748 transitions. [2022-02-21 04:17:04,857 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 748 transitions. [2022-02-21 04:17:04,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:04,858 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:04,858 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:04,858 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:04,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 335 states have (on average 1.2388059701492538) internal successors, (415), 334 states have internal predecessors, (415), 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 04:17:04,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 415 transitions. [2022-02-21 04:17:04,866 INFO L704 BuchiCegarLoop]: Abstraction has 335 states and 415 transitions. [2022-02-21 04:17:04,866 INFO L587 BuchiCegarLoop]: Abstraction has 335 states and 415 transitions. [2022-02-21 04:17:04,866 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2022-02-21 04:17:04,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 335 states and 415 transitions. [2022-02-21 04:17:04,868 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 240 [2022-02-21 04:17:04,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:04,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:04,869 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:04,870 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 04:17:04,870 INFO L791 eck$LassoCheckResult]: Stem: 4528#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 4452#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 4453#L905 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4509#L898 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 4510#L913 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 4433#L239 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 4434#L212 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4414#L638-2 [2022-02-21 04:17:04,870 INFO L793 eck$LassoCheckResult]: Loop: 4414#L638-2 assume !false; 4415#L639 assume test_~splverifierCounter~0#1 < 4; 4446#L640 test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 4731#L648 assume !(0 != test_~tmp~4#1); 4729#L648-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 4431#L658 assume !(0 != test_~tmp___0~0#1); 4405#L658-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 4735#L668 assume 0 != test_~tmp___2~0#1; 4733#L674-2 assume { :begin_inline_timeShift } true; 4482#L704 assume !(0 != ~pumpRunning~0); 4454#L704-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 4447#L736 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#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; 4448#L140 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 4712#L145 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 4710#L838 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 4699#L838-2 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 4696#L844 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 4694#L740 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4690#L728 assume { :end_inline_processEnvironment__wrappee__base } true; 4636#L736-1 assume { :end_inline_processEnvironment } true; 4627#L711-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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; 4626#L100 __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 4503#L858 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7#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; 4504#L132 __utac_acc__Specification3_spec__1_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 4529#L864 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 4621#L864-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 4506#L721 assume { :end_inline_timeShift } true; 4414#L638-2 [2022-02-21 04:17:04,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:04,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 6 times [2022-02-21 04:17:04,871 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:04,871 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014543853] [2022-02-21 04:17:04,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:04,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:04,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:04,881 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:04,888 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:04,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:04,889 INFO L85 PathProgramCache]: Analyzing trace with hash 323062864, now seen corresponding path program 1 times [2022-02-21 04:17:04,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:04,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648022508] [2022-02-21 04:17:04,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:04,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:04,895 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:04,900 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:04,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:04,901 INFO L85 PathProgramCache]: Analyzing trace with hash 698350604, now seen corresponding path program 1 times [2022-02-21 04:17:04,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:04,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299755793] [2022-02-21 04:17:04,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:04,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:04,912 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:04,925 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:07,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:07 BoogieIcfgContainer [2022-02-21 04:17:07,786 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:07,786 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:07,786 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:07,787 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:07,787 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:01" (3/4) ... [2022-02-21 04:17:07,789 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:07,830 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:07,830 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:07,831 INFO L158 Benchmark]: Toolchain (without parser) took 7942.27ms. Allocated memory was 92.3MB in the beginning and 167.8MB in the end (delta: 75.5MB). Free memory was 56.4MB in the beginning and 110.4MB in the end (delta: -54.1MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2022-02-21 04:17:07,832 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 92.3MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:07,832 INFO L158 Benchmark]: CACSL2BoogieTranslator took 471.69ms. Allocated memory is still 92.3MB. Free memory was 56.2MB in the beginning and 57.1MB in the end (delta: -883.8kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-21 04:17:07,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.16ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 53.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:07,833 INFO L158 Benchmark]: Boogie Preprocessor took 46.82ms. Allocated memory is still 92.3MB. Free memory was 53.9MB in the beginning and 51.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:07,833 INFO L158 Benchmark]: RCFGBuilder took 576.89ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 51.8MB in the beginning and 84.5MB in the end (delta: -32.7MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2022-02-21 04:17:07,834 INFO L158 Benchmark]: BuchiAutomizer took 6711.41ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 84.5MB in the beginning and 113.6MB in the end (delta: -29.1MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:07,834 INFO L158 Benchmark]: Witness Printer took 43.99ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 110.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:07,836 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 92.3MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 471.69ms. Allocated memory is still 92.3MB. Free memory was 56.2MB in the beginning and 57.1MB in the end (delta: -883.8kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.16ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 53.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.82ms. Allocated memory is still 92.3MB. Free memory was 53.9MB in the beginning and 51.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 576.89ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 51.8MB in the beginning and 84.5MB in the end (delta: -32.7MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 6711.41ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 84.5MB in the beginning and 113.6MB in the end (delta: -29.1MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. * Witness Printer took 43.99ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 110.4MB 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 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 335 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.6s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 4.0s. Construction of modules took 0.1s. Büchi inclusion checks took 1.9s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 684 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 335 states and ocurred in iteration 5. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1780 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1780 mSDsluCounter, 2377 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1450 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 157 IncrementalHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 927 mSDtfsCounter, 157 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 638]: 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, NULL=0, tmp___0=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@245a1814=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e7bb766=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@570b2708=0, NULL=1, retValue_acc=1, methaneLevelCritical=0, retValue_acc=0, retValue_acc=1, tmp___0=1, \result=0, retValue_acc=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@377caf97=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@566d8caf=29, tmp=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fecfac2=0, tmp___2=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6787e2b5=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60b743bf=0, tmp=1, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32d44391=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76d8394d=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 638]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L151] int cleanupTimeShifts = 4; [L422] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L696] int pumpRunning = 0; [L697] int systemActive = 1; [L230] int retValue_acc ; [L231] int tmp ; [L235] FCALL select_helpers() [L236] FCALL select_features() [L237] CALL, EXPR valid_product() [L909] int retValue_acc ; [L912] retValue_acc = 1 [L913] return (retValue_acc); [L237] RET, EXPR valid_product() [L237] tmp = valid_product() [L239] COND TRUE \read(tmp) [L241] FCALL setup() [L242] CALL runTest() [L221] CALL test() [L629] int splverifierCounter ; [L630] int tmp ; [L631] int tmp___0 ; [L632] int tmp___1 ; [L633] int tmp___2 ; [L636] splverifierCounter = 0 Loop: [L638] COND TRUE 1 [L640] COND TRUE splverifierCounter < 4 [L646] tmp = __VERIFIER_nondet_int() [L648] COND FALSE !(\read(tmp)) [L656] tmp___0 = __VERIFIER_nondet_int() [L658] COND FALSE !(\read(tmp___0)) [L666] tmp___2 = __VERIFIER_nondet_int() [L668] COND TRUE \read(tmp___2) [L681] CALL timeShift() [L704] COND FALSE !(\read(pumpRunning)) [L711] COND TRUE \read(systemActive) [L713] CALL processEnvironment() [L733] int tmp ; [L736] COND TRUE ! pumpRunning [L738] CALL, EXPR isHighWaterLevel() [L830] int retValue_acc ; [L831] int tmp ; [L832] int tmp___0 ; [L836] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L836] RET, EXPR isHighWaterSensorDry() [L836] tmp = isHighWaterSensorDry() [L838] COND TRUE \read(tmp) [L839] tmp___0 = 0 [L843] retValue_acc = tmp___0 [L844] return (retValue_acc); [L738] RET, EXPR isHighWaterLevel() [L738] tmp = isHighWaterLevel() [L740] COND FALSE !(\read(tmp)) [L746] FCALL processEnvironment__wrappee__base() [L713] RET processEnvironment() [L719] CALL __utac_acc__Specification3_spec__1() [L850] int tmp ; [L851] int tmp___0 ; [L852] int tmp___1 ; [L856] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L856] RET, EXPR isMethaneLevelCritical() [L856] tmp = isMethaneLevelCritical() [L858] COND FALSE !(\read(tmp)) [L862] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L862] RET, EXPR getWaterLevel() [L862] tmp___0 = getWaterLevel() [L864] COND FALSE !(tmp___0 == 2) [L719] RET __utac_acc__Specification3_spec__1() [L681] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:07,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- 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)