./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product63.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 b18268074b12ff6db81668668ee2d33af663d931f7be534d8799200934e1992a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:19:02,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:19:02,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:19:02,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:19:02,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:19:02,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:19:02,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:19:02,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:19:02,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:19:02,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:19:02,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:19:02,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:19:02,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:19:02,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:19:02,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:19:02,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:19:02,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:19:02,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:19:02,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:19:02,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:19:02,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:19:02,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:19:02,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:19:02,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:19:02,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:19:02,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:19:02,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:19:02,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:19:02,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:19:02,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:19:02,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:19:02,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:19:02,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:19:02,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:19:02,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:19:02,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:19:02,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:19:02,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:19:02,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:19:02,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:19:02,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:19:02,288 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:19:02,316 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:19:02,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:19:02,317 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:19:02,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:19:02,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:19:02,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:19:02,318 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:19:02,318 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:19:02,318 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:19:02,318 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:19:02,319 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:19:02,319 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:19:02,319 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:19:02,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:19:02,320 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:19:02,320 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:19:02,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:19:02,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:19:02,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:19:02,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:19:02,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:19:02,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:19:02,321 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:19:02,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:19:02,321 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:19:02,321 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:19:02,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:19:02,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:19:02,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:19:02,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:19:02,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:19:02,323 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:19:02,323 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b18268074b12ff6db81668668ee2d33af663d931f7be534d8799200934e1992a [2022-02-21 04:19:02,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:19:02,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:19:02,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:19:02,543 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:19:02,544 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:19:02,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c [2022-02-21 04:19:02,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6961d3a38/e60d763dccc64c429b17792d35c78fab/FLAG343f10b82 [2022-02-21 04:19:03,048 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:19:03,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c [2022-02-21 04:19:03,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6961d3a38/e60d763dccc64c429b17792d35c78fab/FLAG343f10b82 [2022-02-21 04:19:03,435 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6961d3a38/e60d763dccc64c429b17792d35c78fab [2022-02-21 04:19:03,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:19:03,438 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:19:03,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:19:03,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:19:03,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:19:03,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:19:03" (1/1) ... [2022-02-21 04:19:03,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1124b7b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:03, skipping insertion in model container [2022-02-21 04:19:03,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:19:03" (1/1) ... [2022-02-21 04:19:03,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:19:03,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:19:03,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c[2897,2910] [2022-02-21 04:19:03,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:19:03,808 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:19:03,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c[2897,2910] [2022-02-21 04:19:03,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:19:03,914 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:19:03,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:03 WrapperNode [2022-02-21 04:19:03,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:19:03,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:19:03,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:19:03,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:19:03,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:03" (1/1) ... [2022-02-21 04:19:03,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:03" (1/1) ... [2022-02-21 04:19:03,994 INFO L137 Inliner]: procedures = 60, calls = 165, calls flagged for inlining = 62, calls inlined = 182, statements flattened = 1300 [2022-02-21 04:19:03,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:19:03,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:19:03,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:19:03,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:19:04,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:03" (1/1) ... [2022-02-21 04:19:04,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:03" (1/1) ... [2022-02-21 04:19:04,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:03" (1/1) ... [2022-02-21 04:19:04,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:03" (1/1) ... [2022-02-21 04:19:04,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:03" (1/1) ... [2022-02-21 04:19:04,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:03" (1/1) ... [2022-02-21 04:19:04,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:03" (1/1) ... [2022-02-21 04:19:04,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:19:04,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:19:04,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:19:04,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:19:04,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:03" (1/1) ... [2022-02-21 04:19:04,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:19:04,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:19:04,109 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 04:19:04,113 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 04:19:04,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:19:04,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:19:04,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:19:04,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:19:04,194 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:19:04,195 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:19:04,893 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:19:04,900 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:19:04,900 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:19:04,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:19:04 BoogieIcfgContainer [2022-02-21 04:19:04,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:19:04,902 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:19:04,902 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:19:04,904 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:19:04,905 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:19:04,905 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:19:03" (1/3) ... [2022-02-21 04:19:04,906 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15aa33b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:19:04, skipping insertion in model container [2022-02-21 04:19:04,906 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:19:04,906 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:03" (2/3) ... [2022-02-21 04:19:04,906 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15aa33b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:19:04, skipping insertion in model container [2022-02-21 04:19:04,906 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:19:04,907 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:19:04" (3/3) ... [2022-02-21 04:19:04,907 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product63.cil.c [2022-02-21 04:19:04,933 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:19:04,933 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:19:04,933 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:19:04,933 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:19:04,933 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:19:04,933 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:19:04,934 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:19:04,934 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:19:04,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 332 states, 331 states have (on average 1.350453172205438) internal successors, (447), 331 states have internal predecessors, (447), 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 04:19:05,017 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 218 [2022-02-21 04:19:05,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:05,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:05,026 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:05,026 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:05,026 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:19:05,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 332 states, 331 states have (on average 1.350453172205438) internal successors, (447), 331 states have internal predecessors, (447), 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 04:19:05,049 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 218 [2022-02-21 04:19:05,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:05,049 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:05,050 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:05,050 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:05,053 INFO L791 eck$LassoCheckResult]: Stem: 309#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 198#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~2#1, main_~tmp~2#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; 313#L127true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 208#L120true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 115#L135true main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 231#L305true assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; 170#L281true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 113#L59true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 228#L164-2true [2022-02-21 04:19:05,054 INFO L793 eck$LassoCheckResult]: Loop: 228#L164-2true assume !false; 163#L165true assume test_~splverifierCounter~0#1 < 4; 100#L166true test_~tmp~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 324#L174true assume !(0 != test_~tmp~1#1); 303#L174-2true test_~tmp___0~1#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 95#L184true assume !(0 != test_~tmp___0~1#1); 255#L184-2true test_~tmp___2~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 276#L194true assume 0 != test_~tmp___2~0#1; 267#L200-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 177#L490true __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 15#L69true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 90#L336true assume !(0 != ~pumpRunning~0); 259#L336-2true assume !(0 != ~systemActive~0); 48#L343-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 185#L659true __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 159#L80true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 306#L80-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 105#L353true assume { :end_inline_timeShift } true; 228#L164-2true [2022-02-21 04:19:05,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:05,057 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:19:05,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:05,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748541072] [2022-02-21 04:19:05,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:05,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:05,188 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:05,240 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:05,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:05,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1501537388, now seen corresponding path program 1 times [2022-02-21 04:19:05,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:05,244 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680783628] [2022-02-21 04:19:05,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:05,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:05,263 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:05,272 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:05,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:05,274 INFO L85 PathProgramCache]: Analyzing trace with hash 162184981, now seen corresponding path program 1 times [2022-02-21 04:19:05,274 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:05,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965303985] [2022-02-21 04:19:05,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:05,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:19:05,423 INFO L290 TraceCheckUtils]: 0: Hoare triple {340#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {342#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:19:05,424 INFO L290 TraceCheckUtils]: 1: Hoare triple {342#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~2#1, main_~tmp~2#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; {342#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:19:05,424 INFO L290 TraceCheckUtils]: 2: Hoare triple {342#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {342#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:19:05,425 INFO L290 TraceCheckUtils]: 3: Hoare triple {342#(= 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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {343#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:19:05,425 INFO L290 TraceCheckUtils]: 4: Hoare triple {343#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret12#1;havoc main_#t~ret12#1; {344#(= |ULTIMATE.start_main_~tmp~2#1| ~systemActive~0)} is VALID [2022-02-21 04:19:05,426 INFO L290 TraceCheckUtils]: 5: Hoare triple {344#(= |ULTIMATE.start_main_~tmp~2#1| ~systemActive~0)} assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; {345#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:05,426 INFO L290 TraceCheckUtils]: 6: Hoare triple {345#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {345#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:05,427 INFO L290 TraceCheckUtils]: 7: Hoare triple {345#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {345#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:05,427 INFO L290 TraceCheckUtils]: 8: Hoare triple {345#(not (= 0 ~systemActive~0))} assume !false; {345#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:05,427 INFO L290 TraceCheckUtils]: 9: Hoare triple {345#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {345#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:05,428 INFO L290 TraceCheckUtils]: 10: Hoare triple {345#(not (= 0 ~systemActive~0))} test_~tmp~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; {345#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:05,429 INFO L290 TraceCheckUtils]: 11: Hoare triple {345#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~1#1); {345#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:05,429 INFO L290 TraceCheckUtils]: 12: Hoare triple {345#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {345#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:05,430 INFO L290 TraceCheckUtils]: 13: Hoare triple {345#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {345#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:05,430 INFO L290 TraceCheckUtils]: 14: Hoare triple {345#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; {345#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:05,431 INFO L290 TraceCheckUtils]: 15: Hoare triple {345#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {345#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:05,431 INFO L290 TraceCheckUtils]: 16: Hoare triple {345#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; {345#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:05,432 INFO L290 TraceCheckUtils]: 17: Hoare triple {345#(not (= 0 ~systemActive~0))} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {345#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:05,432 INFO L290 TraceCheckUtils]: 18: Hoare triple {345#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {345#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:05,433 INFO L290 TraceCheckUtils]: 19: Hoare triple {345#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {345#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:05,433 INFO L290 TraceCheckUtils]: 20: Hoare triple {345#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {341#false} is VALID [2022-02-21 04:19:05,434 INFO L290 TraceCheckUtils]: 21: Hoare triple {341#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; {341#false} is VALID [2022-02-21 04:19:05,434 INFO L290 TraceCheckUtils]: 22: Hoare triple {341#false} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {341#false} is VALID [2022-02-21 04:19:05,434 INFO L290 TraceCheckUtils]: 23: Hoare triple {341#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {341#false} is VALID [2022-02-21 04:19:05,435 INFO L290 TraceCheckUtils]: 24: Hoare triple {341#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {341#false} is VALID [2022-02-21 04:19:05,435 INFO L290 TraceCheckUtils]: 25: Hoare triple {341#false} assume { :end_inline_timeShift } true; {341#false} is VALID [2022-02-21 04:19:05,436 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 04:19:05,436 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:19:05,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965303985] [2022-02-21 04:19:05,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965303985] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:19:05,437 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:19:05,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:19:05,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955246813] [2022-02-21 04:19:05,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:19:05,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:19:05,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:19:05,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:19:05,591 INFO L87 Difference]: Start difference. First operand has 332 states, 331 states have (on average 1.350453172205438) internal successors, (447), 331 states have internal predecessors, (447), 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 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:06,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:06,742 INFO L93 Difference]: Finished difference Result 723 states and 954 transitions. [2022-02-21 04:19:06,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:19:06,743 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:06,764 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:19:06,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 723 states and 954 transitions. [2022-02-21 04:19:06,800 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 473 [2022-02-21 04:19:06,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 723 states to 693 states and 924 transitions. [2022-02-21 04:19:06,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 693 [2022-02-21 04:19:06,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 693 [2022-02-21 04:19:06,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 693 states and 924 transitions. [2022-02-21 04:19:06,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:19:06,833 INFO L681 BuchiCegarLoop]: Abstraction has 693 states and 924 transitions. [2022-02-21 04:19:06,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states and 924 transitions. [2022-02-21 04:19:06,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 380. [2022-02-21 04:19:06,876 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:19:06,878 INFO L82 GeneralOperation]: Start isEquivalent. First operand 693 states and 924 transitions. Second operand has 380 states, 380 states have (on average 1.331578947368421) internal successors, (506), 379 states have internal predecessors, (506), 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 04:19:06,879 INFO L74 IsIncluded]: Start isIncluded. First operand 693 states and 924 transitions. Second operand has 380 states, 380 states have (on average 1.331578947368421) internal successors, (506), 379 states have internal predecessors, (506), 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 04:19:06,882 INFO L87 Difference]: Start difference. First operand 693 states and 924 transitions. Second operand has 380 states, 380 states have (on average 1.331578947368421) internal successors, (506), 379 states have internal predecessors, (506), 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 04:19:06,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:06,904 INFO L93 Difference]: Finished difference Result 693 states and 924 transitions. [2022-02-21 04:19:06,904 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 924 transitions. [2022-02-21 04:19:06,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:06,908 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:06,910 INFO L74 IsIncluded]: Start isIncluded. First operand has 380 states, 380 states have (on average 1.331578947368421) internal successors, (506), 379 states have internal predecessors, (506), 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 693 states and 924 transitions. [2022-02-21 04:19:06,910 INFO L87 Difference]: Start difference. First operand has 380 states, 380 states have (on average 1.331578947368421) internal successors, (506), 379 states have internal predecessors, (506), 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 693 states and 924 transitions. [2022-02-21 04:19:06,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:06,929 INFO L93 Difference]: Finished difference Result 693 states and 924 transitions. [2022-02-21 04:19:06,929 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 924 transitions. [2022-02-21 04:19:06,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:06,931 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:06,931 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:19:06,931 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:19:06,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 380 states have (on average 1.331578947368421) internal successors, (506), 379 states have internal predecessors, (506), 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 04:19:06,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 506 transitions. [2022-02-21 04:19:06,941 INFO L704 BuchiCegarLoop]: Abstraction has 380 states and 506 transitions. [2022-02-21 04:19:06,942 INFO L587 BuchiCegarLoop]: Abstraction has 380 states and 506 transitions. [2022-02-21 04:19:06,942 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:19:06,942 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 380 states and 506 transitions. [2022-02-21 04:19:06,943 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 260 [2022-02-21 04:19:06,944 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:06,944 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:06,944 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:06,944 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] [2022-02-21 04:19:06,945 INFO L791 eck$LassoCheckResult]: Stem: 1390#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1346#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~2#1, main_~tmp~2#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; 1347#L127 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1356#L120 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1258#L135 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 1259#L305 assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; 1321#L281 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1254#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1246#L164-2 [2022-02-21 04:19:06,945 INFO L793 eck$LassoCheckResult]: Loop: 1246#L164-2 assume !false; 1312#L165 assume test_~splverifierCounter~0#1 < 4; 1235#L166 test_~tmp~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 1236#L174 assume !(0 != test_~tmp~1#1); 1363#L174-2 test_~tmp___0~1#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 1228#L184 assume !(0 != test_~tmp___0~1#1); 1230#L184-2 test_~tmp___2~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 1373#L194 assume 0 != test_~tmp___2~0#1; 1256#L200-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 1329#L490 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 1096#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1097#L336 assume !(0 != ~pumpRunning~0); 1221#L336-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1342#L420 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret17#1, isMethaneAlarm_~retValue_acc~3#1;havoc isMethaneAlarm_~retValue_acc~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 1179#L627 isMethaneAlarm_#t~ret17#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~3#1 := isMethaneAlarm_#t~ret17#1;havoc isMethaneAlarm_#t~ret17#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; 1180#L481 processEnvironment_#t~ret15#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret15#1;havoc processEnvironment_#t~ret15#1; 1335#L424 assume 0 != processEnvironment_~tmp~5#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1387#L471-1 assume { :end_inline_deactivatePump } true; 1166#L420-1 assume { :end_inline_processEnvironment } true; 1158#L343-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 1159#L659 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 1304#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 1149#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1245#L353 assume { :end_inline_timeShift } true; 1246#L164-2 [2022-02-21 04:19:06,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:06,945 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:19:06,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:06,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476486662] [2022-02-21 04:19:06,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:06,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:06,954 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:06,963 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:06,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:06,963 INFO L85 PathProgramCache]: Analyzing trace with hash 253380821, now seen corresponding path program 1 times [2022-02-21 04:19:06,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:06,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728524897] [2022-02-21 04:19:06,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:06,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:19:06,977 INFO L290 TraceCheckUtils]: 0: Hoare triple {2844#true} assume !false; {2844#true} is VALID [2022-02-21 04:19:06,977 INFO L290 TraceCheckUtils]: 1: Hoare triple {2844#true} assume test_~splverifierCounter~0#1 < 4; {2844#true} is VALID [2022-02-21 04:19:06,978 INFO L290 TraceCheckUtils]: 2: Hoare triple {2844#true} test_~tmp~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; {2844#true} is VALID [2022-02-21 04:19:06,978 INFO L290 TraceCheckUtils]: 3: Hoare triple {2844#true} assume !(0 != test_~tmp~1#1); {2844#true} is VALID [2022-02-21 04:19:06,978 INFO L290 TraceCheckUtils]: 4: Hoare triple {2844#true} test_~tmp___0~1#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {2844#true} is VALID [2022-02-21 04:19:06,978 INFO L290 TraceCheckUtils]: 5: Hoare triple {2844#true} assume !(0 != test_~tmp___0~1#1); {2844#true} is VALID [2022-02-21 04:19:06,978 INFO L290 TraceCheckUtils]: 6: Hoare triple {2844#true} test_~tmp___2~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; {2844#true} is VALID [2022-02-21 04:19:06,978 INFO L290 TraceCheckUtils]: 7: Hoare triple {2844#true} assume 0 != test_~tmp___2~0#1; {2844#true} is VALID [2022-02-21 04:19:06,979 INFO L290 TraceCheckUtils]: 8: Hoare triple {2844#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; {2844#true} is VALID [2022-02-21 04:19:06,979 INFO L290 TraceCheckUtils]: 9: Hoare triple {2844#true} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {2844#true} is VALID [2022-02-21 04:19:06,979 INFO L290 TraceCheckUtils]: 10: Hoare triple {2844#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {2844#true} is VALID [2022-02-21 04:19:06,979 INFO L290 TraceCheckUtils]: 11: Hoare triple {2844#true} assume !(0 != ~pumpRunning~0); {2846#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:19:06,980 INFO L290 TraceCheckUtils]: 12: Hoare triple {2846#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {2846#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:19:06,980 INFO L290 TraceCheckUtils]: 13: Hoare triple {2846#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret17#1, isMethaneAlarm_~retValue_acc~3#1;havoc isMethaneAlarm_~retValue_acc~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; {2845#false} is VALID [2022-02-21 04:19:06,980 INFO L290 TraceCheckUtils]: 14: Hoare triple {2845#false} isMethaneAlarm_#t~ret17#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~3#1 := isMethaneAlarm_#t~ret17#1;havoc isMethaneAlarm_#t~ret17#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; {2845#false} is VALID [2022-02-21 04:19:06,980 INFO L290 TraceCheckUtils]: 15: Hoare triple {2845#false} processEnvironment_#t~ret15#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret15#1;havoc processEnvironment_#t~ret15#1; {2845#false} is VALID [2022-02-21 04:19:06,981 INFO L290 TraceCheckUtils]: 16: Hoare triple {2845#false} assume 0 != processEnvironment_~tmp~5#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {2845#false} is VALID [2022-02-21 04:19:06,981 INFO L290 TraceCheckUtils]: 17: Hoare triple {2845#false} assume { :end_inline_deactivatePump } true; {2845#false} is VALID [2022-02-21 04:19:06,981 INFO L290 TraceCheckUtils]: 18: Hoare triple {2845#false} assume { :end_inline_processEnvironment } true; {2845#false} is VALID [2022-02-21 04:19:06,981 INFO L290 TraceCheckUtils]: 19: Hoare triple {2845#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; {2845#false} is VALID [2022-02-21 04:19:06,981 INFO L290 TraceCheckUtils]: 20: Hoare triple {2845#false} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {2845#false} is VALID [2022-02-21 04:19:06,982 INFO L290 TraceCheckUtils]: 21: Hoare triple {2845#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {2845#false} is VALID [2022-02-21 04:19:06,982 INFO L290 TraceCheckUtils]: 22: Hoare triple {2845#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {2845#false} is VALID [2022-02-21 04:19:06,982 INFO L290 TraceCheckUtils]: 23: Hoare triple {2845#false} assume { :end_inline_timeShift } true; {2845#false} is VALID [2022-02-21 04:19:06,982 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 04:19:06,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:19:06,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728524897] [2022-02-21 04:19:06,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728524897] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:19:06,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:19:06,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:19:06,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591645876] [2022-02-21 04:19:06,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:19:06,984 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:19:06,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:19:06,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:19:06,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:19:06,985 INFO L87 Difference]: Start difference. First operand 380 states and 506 transitions. cyclomatic complexity: 129 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:07,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:07,221 INFO L93 Difference]: Finished difference Result 391 states and 494 transitions. [2022-02-21 04:19:07,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:19:07,221 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:07,235 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:19:07,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 391 states and 494 transitions. [2022-02-21 04:19:07,248 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 273 [2022-02-21 04:19:07,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 391 states to 391 states and 494 transitions. [2022-02-21 04:19:07,281 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 391 [2022-02-21 04:19:07,281 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 391 [2022-02-21 04:19:07,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 391 states and 494 transitions. [2022-02-21 04:19:07,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:19:07,281 INFO L681 BuchiCegarLoop]: Abstraction has 391 states and 494 transitions. [2022-02-21 04:19:07,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states and 494 transitions. [2022-02-21 04:19:07,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2022-02-21 04:19:07,296 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:19:07,297 INFO L82 GeneralOperation]: Start isEquivalent. First operand 391 states and 494 transitions. Second operand has 391 states, 391 states have (on average 1.2634271099744245) internal successors, (494), 390 states have internal predecessors, (494), 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 04:19:07,298 INFO L74 IsIncluded]: Start isIncluded. First operand 391 states and 494 transitions. Second operand has 391 states, 391 states have (on average 1.2634271099744245) internal successors, (494), 390 states have internal predecessors, (494), 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 04:19:07,299 INFO L87 Difference]: Start difference. First operand 391 states and 494 transitions. Second operand has 391 states, 391 states have (on average 1.2634271099744245) internal successors, (494), 390 states have internal predecessors, (494), 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 04:19:07,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:07,322 INFO L93 Difference]: Finished difference Result 391 states and 494 transitions. [2022-02-21 04:19:07,323 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 494 transitions. [2022-02-21 04:19:07,323 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:07,323 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:07,324 INFO L74 IsIncluded]: Start isIncluded. First operand has 391 states, 391 states have (on average 1.2634271099744245) internal successors, (494), 390 states have internal predecessors, (494), 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 391 states and 494 transitions. [2022-02-21 04:19:07,326 INFO L87 Difference]: Start difference. First operand has 391 states, 391 states have (on average 1.2634271099744245) internal successors, (494), 390 states have internal predecessors, (494), 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 391 states and 494 transitions. [2022-02-21 04:19:07,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:07,332 INFO L93 Difference]: Finished difference Result 391 states and 494 transitions. [2022-02-21 04:19:07,332 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 494 transitions. [2022-02-21 04:19:07,339 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:07,340 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:07,340 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:19:07,340 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:19:07,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 391 states have (on average 1.2634271099744245) internal successors, (494), 390 states have internal predecessors, (494), 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 04:19:07,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 494 transitions. [2022-02-21 04:19:07,347 INFO L704 BuchiCegarLoop]: Abstraction has 391 states and 494 transitions. [2022-02-21 04:19:07,347 INFO L587 BuchiCegarLoop]: Abstraction has 391 states and 494 transitions. [2022-02-21 04:19:07,347 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:19:07,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 391 states and 494 transitions. [2022-02-21 04:19:07,348 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 273 [2022-02-21 04:19:07,349 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:07,349 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:07,349 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:07,349 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:07,350 INFO L791 eck$LassoCheckResult]: Stem: 3511#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 3465#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~2#1, main_~tmp~2#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; 3466#L127 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3472#L120 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 3390#L135 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 3391#L305 assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; 3444#L281 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3386#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3382#L164-2 [2022-02-21 04:19:07,350 INFO L793 eck$LassoCheckResult]: Loop: 3382#L164-2 assume !false; 3592#L165 assume test_~splverifierCounter~0#1 < 4; 3593#L166 test_~tmp~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 3609#L174 assume !(0 != test_~tmp~1#1); 3607#L174-2 test_~tmp___0~1#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 3605#L184 assume !(0 != test_~tmp___0~1#1); 3603#L184-2 test_~tmp___2~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 3499#L194 assume 0 != test_~tmp___2~0#1; 3388#L200-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 3449#L490 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 3255#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3256#L336 assume !(0 != ~pumpRunning~0); 3357#L336-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 3461#L420 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 3462#L394-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 3496#L368-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 3468#L667-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 3324#L672-3 isHighWaterLevel_#t~ret26#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret26#1;havoc isHighWaterLevel_#t~ret26#1; 3294#L539-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~2#1 := 0; 3295#L539-11 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 3317#L545-3 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 3318#L372-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3436#L360-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3309#L368-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3310#L394-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3308#L420-1 assume { :end_inline_processEnvironment } true; 3302#L343-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 3303#L659 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 3428#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 3293#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3381#L353 assume { :end_inline_timeShift } true; 3382#L164-2 [2022-02-21 04:19:07,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:07,351 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:19:07,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:07,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696762597] [2022-02-21 04:19:07,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:07,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:07,359 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:07,366 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:07,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:07,367 INFO L85 PathProgramCache]: Analyzing trace with hash 391917419, now seen corresponding path program 1 times [2022-02-21 04:19:07,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:07,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427968204] [2022-02-21 04:19:07,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:07,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:19:07,396 INFO L290 TraceCheckUtils]: 0: Hoare triple {4416#true} assume !false; {4416#true} is VALID [2022-02-21 04:19:07,396 INFO L290 TraceCheckUtils]: 1: Hoare triple {4416#true} assume test_~splverifierCounter~0#1 < 4; {4416#true} is VALID [2022-02-21 04:19:07,397 INFO L290 TraceCheckUtils]: 2: Hoare triple {4416#true} test_~tmp~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; {4416#true} is VALID [2022-02-21 04:19:07,397 INFO L290 TraceCheckUtils]: 3: Hoare triple {4416#true} assume !(0 != test_~tmp~1#1); {4416#true} is VALID [2022-02-21 04:19:07,397 INFO L290 TraceCheckUtils]: 4: Hoare triple {4416#true} test_~tmp___0~1#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {4416#true} is VALID [2022-02-21 04:19:07,397 INFO L290 TraceCheckUtils]: 5: Hoare triple {4416#true} assume !(0 != test_~tmp___0~1#1); {4416#true} is VALID [2022-02-21 04:19:07,397 INFO L290 TraceCheckUtils]: 6: Hoare triple {4416#true} test_~tmp___2~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; {4416#true} is VALID [2022-02-21 04:19:07,398 INFO L290 TraceCheckUtils]: 7: Hoare triple {4416#true} assume 0 != test_~tmp___2~0#1; {4416#true} is VALID [2022-02-21 04:19:07,398 INFO L290 TraceCheckUtils]: 8: Hoare triple {4416#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; {4416#true} is VALID [2022-02-21 04:19:07,398 INFO L290 TraceCheckUtils]: 9: Hoare triple {4416#true} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {4416#true} is VALID [2022-02-21 04:19:07,398 INFO L290 TraceCheckUtils]: 10: Hoare triple {4416#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {4416#true} is VALID [2022-02-21 04:19:07,398 INFO L290 TraceCheckUtils]: 11: Hoare triple {4416#true} assume !(0 != ~pumpRunning~0); {4416#true} is VALID [2022-02-21 04:19:07,399 INFO L290 TraceCheckUtils]: 12: Hoare triple {4416#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {4416#true} is VALID [2022-02-21 04:19:07,399 INFO L290 TraceCheckUtils]: 13: Hoare triple {4416#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; {4416#true} is VALID [2022-02-21 04:19:07,399 INFO L290 TraceCheckUtils]: 14: Hoare triple {4416#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; {4416#true} is VALID [2022-02-21 04:19:07,399 INFO L290 TraceCheckUtils]: 15: Hoare triple {4416#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; {4416#true} is VALID [2022-02-21 04:19:07,400 INFO L290 TraceCheckUtils]: 16: Hoare triple {4416#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; {4418#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:07,400 INFO L290 TraceCheckUtils]: 17: Hoare triple {4418#(<= ~waterLevel~0 1)} isHighWaterLevel_#t~ret26#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret26#1;havoc isHighWaterLevel_#t~ret26#1; {4418#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:07,401 INFO L290 TraceCheckUtils]: 18: Hoare triple {4418#(<= ~waterLevel~0 1)} assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~2#1 := 0; {4418#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:07,401 INFO L290 TraceCheckUtils]: 19: Hoare triple {4418#(<= ~waterLevel~0 1)} isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; {4418#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:07,401 INFO L290 TraceCheckUtils]: 20: Hoare triple {4418#(<= ~waterLevel~0 1)} processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; {4418#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:07,402 INFO L290 TraceCheckUtils]: 21: Hoare triple {4418#(<= ~waterLevel~0 1)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {4418#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:07,402 INFO L290 TraceCheckUtils]: 22: Hoare triple {4418#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__base } true; {4418#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:07,403 INFO L290 TraceCheckUtils]: 23: Hoare triple {4418#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {4418#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:07,403 INFO L290 TraceCheckUtils]: 24: Hoare triple {4418#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {4418#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:07,403 INFO L290 TraceCheckUtils]: 25: Hoare triple {4418#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {4418#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:07,404 INFO L290 TraceCheckUtils]: 26: Hoare triple {4418#(<= ~waterLevel~0 1)} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; {4419#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:19:07,406 INFO L290 TraceCheckUtils]: 27: Hoare triple {4419#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {4420#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~0#1| 1)} is VALID [2022-02-21 04:19:07,407 INFO L290 TraceCheckUtils]: 28: Hoare triple {4420#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~0#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {4417#false} is VALID [2022-02-21 04:19:07,407 INFO L290 TraceCheckUtils]: 29: Hoare triple {4417#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {4417#false} is VALID [2022-02-21 04:19:07,407 INFO L290 TraceCheckUtils]: 30: Hoare triple {4417#false} assume { :end_inline_timeShift } true; {4417#false} is VALID [2022-02-21 04:19:07,407 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 04:19:07,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:19:07,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427968204] [2022-02-21 04:19:07,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427968204] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:19:07,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:19:07,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:19:07,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851259854] [2022-02-21 04:19:07,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:19:07,408 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:19:07,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:19:07,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:19:07,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:19:07,409 INFO L87 Difference]: Start difference. First operand 391 states and 494 transitions. cyclomatic complexity: 106 Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 04:19:08,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:08,084 INFO L93 Difference]: Finished difference Result 1138 states and 1409 transitions. [2022-02-21 04:19:08,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:19:08,085 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 04:19:08,125 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:19:08,126 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1138 states and 1409 transitions. [2022-02-21 04:19:08,163 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 733 [2022-02-21 04:19:08,195 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1138 states to 1138 states and 1409 transitions. [2022-02-21 04:19:08,196 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1138 [2022-02-21 04:19:08,196 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1138 [2022-02-21 04:19:08,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1138 states and 1409 transitions. [2022-02-21 04:19:08,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:19:08,197 INFO L681 BuchiCegarLoop]: Abstraction has 1138 states and 1409 transitions. [2022-02-21 04:19:08,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states and 1409 transitions. [2022-02-21 04:19:08,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 771. [2022-02-21 04:19:08,205 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:19:08,206 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1138 states and 1409 transitions. Second operand has 771 states, 771 states have (on average 1.2399481193255513) internal successors, (956), 770 states have internal predecessors, (956), 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 04:19:08,207 INFO L74 IsIncluded]: Start isIncluded. First operand 1138 states and 1409 transitions. Second operand has 771 states, 771 states have (on average 1.2399481193255513) internal successors, (956), 770 states have internal predecessors, (956), 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 04:19:08,208 INFO L87 Difference]: Start difference. First operand 1138 states and 1409 transitions. Second operand has 771 states, 771 states have (on average 1.2399481193255513) internal successors, (956), 770 states have internal predecessors, (956), 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 04:19:08,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:08,239 INFO L93 Difference]: Finished difference Result 1138 states and 1409 transitions. [2022-02-21 04:19:08,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1409 transitions. [2022-02-21 04:19:08,240 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:08,240 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:08,242 INFO L74 IsIncluded]: Start isIncluded. First operand has 771 states, 771 states have (on average 1.2399481193255513) internal successors, (956), 770 states have internal predecessors, (956), 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 1138 states and 1409 transitions. [2022-02-21 04:19:08,243 INFO L87 Difference]: Start difference. First operand has 771 states, 771 states have (on average 1.2399481193255513) internal successors, (956), 770 states have internal predecessors, (956), 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 1138 states and 1409 transitions. [2022-02-21 04:19:08,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:08,273 INFO L93 Difference]: Finished difference Result 1138 states and 1409 transitions. [2022-02-21 04:19:08,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1409 transitions. [2022-02-21 04:19:08,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:08,274 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:08,275 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:19:08,275 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:19:08,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 771 states have (on average 1.2399481193255513) internal successors, (956), 770 states have internal predecessors, (956), 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 04:19:08,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 956 transitions. [2022-02-21 04:19:08,291 INFO L704 BuchiCegarLoop]: Abstraction has 771 states and 956 transitions. [2022-02-21 04:19:08,291 INFO L587 BuchiCegarLoop]: Abstraction has 771 states and 956 transitions. [2022-02-21 04:19:08,291 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:19:08,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 771 states and 956 transitions. [2022-02-21 04:19:08,294 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 543 [2022-02-21 04:19:08,294 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:08,294 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:08,294 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:08,294 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:08,295 INFO L791 eck$LassoCheckResult]: Stem: 5856#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 5798#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~2#1, main_~tmp~2#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; 5799#L127 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5806#L120 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 5722#L135 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 5723#L305 assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; 5774#L281 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 5717#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5718#L164-2 [2022-02-21 04:19:08,295 INFO L793 eck$LassoCheckResult]: Loop: 5718#L164-2 assume !false; 6180#L165 assume test_~splverifierCounter~0#1 < 4; 6297#L166 test_~tmp~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 6296#L174 assume !(0 != test_~tmp~1#1); 5853#L174-2 test_~tmp___0~1#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 5696#L184 assume !(0 != test_~tmp___0~1#1); 5698#L184-2 test_~tmp___2~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 5827#L194 assume 0 != test_~tmp___2~0#1; 5720#L200-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 5782#L490 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 5584#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 5585#L336 assume !(0 != ~pumpRunning~0); 5688#L336-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 5793#L420 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 5794#L394-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 5836#L368-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 5801#L667-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 5802#L672-3 isHighWaterLevel_#t~ret26#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret26#1;havoc isHighWaterLevel_#t~ret26#1; 6139#L539-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~2#1 := 0; 6135#L539-11 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 6131#L545-3 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 6125#L372-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 6126#L360-6 assume { :end_inline_processEnvironment__wrappee__base } true; 5640#L368-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5641#L394-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 5638#L420-1 assume { :end_inline_processEnvironment } true; 5639#L343-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 6201#L659 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 6197#L80 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 6198#L490-1 __utac_acc__Specification5_spec__3_#t~ret6#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 6194#L84 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 6193#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 6181#L353 assume { :end_inline_timeShift } true; 5718#L164-2 [2022-02-21 04:19:08,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:08,295 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:19:08,296 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:08,296 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573274839] [2022-02-21 04:19:08,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:08,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:08,303 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:08,309 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:08,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:08,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1343573178, now seen corresponding path program 1 times [2022-02-21 04:19:08,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:08,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769874899] [2022-02-21 04:19:08,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:08,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:08,315 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:08,321 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:08,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:08,321 INFO L85 PathProgramCache]: Analyzing trace with hash -30158467, now seen corresponding path program 1 times [2022-02-21 04:19:08,321 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:08,321 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465281807] [2022-02-21 04:19:08,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:08,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:08,330 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:08,341 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:11,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:19:11 BoogieIcfgContainer [2022-02-21 04:19:11,058 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:19:11,059 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:19:11,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:19:11,059 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:19:11,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:19:04" (3/4) ... [2022-02-21 04:19:11,063 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:19:11,111 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:19:11,111 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:19:11,113 INFO L158 Benchmark]: Toolchain (without parser) took 7674.22ms. Allocated memory was 77.6MB in the beginning and 174.1MB in the end (delta: 96.5MB). Free memory was 45.7MB in the beginning and 119.1MB in the end (delta: -73.4MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2022-02-21 04:19:11,113 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 77.6MB. Free memory was 48.8MB in the beginning and 48.8MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:19:11,114 INFO L158 Benchmark]: CACSL2BoogieTranslator took 471.15ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 45.5MB in the beginning and 56.9MB in the end (delta: -11.4MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-02-21 04:19:11,114 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.53ms. Allocated memory is still 94.4MB. Free memory was 56.9MB in the beginning and 50.0MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:19:11,114 INFO L158 Benchmark]: Boogie Preprocessor took 76.23ms. Allocated memory is still 94.4MB. Free memory was 50.0MB in the beginning and 68.7MB in the end (delta: -18.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:19:11,114 INFO L158 Benchmark]: RCFGBuilder took 829.15ms. Allocated memory is still 94.4MB. Free memory was 68.7MB in the beginning and 49.1MB in the end (delta: 19.6MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2022-02-21 04:19:11,115 INFO L158 Benchmark]: BuchiAutomizer took 6156.42ms. Allocated memory was 94.4MB in the beginning and 174.1MB in the end (delta: 79.7MB). Free memory was 49.1MB in the beginning and 122.2MB in the end (delta: -73.1MB). Peak memory consumption was 84.5MB. Max. memory is 16.1GB. [2022-02-21 04:19:11,115 INFO L158 Benchmark]: Witness Printer took 52.56ms. Allocated memory is still 174.1MB. Free memory was 122.2MB in the beginning and 119.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:19:11,116 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 77.6MB. Free memory was 48.8MB in the beginning and 48.8MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 471.15ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 45.5MB in the beginning and 56.9MB in the end (delta: -11.4MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.53ms. Allocated memory is still 94.4MB. Free memory was 56.9MB in the beginning and 50.0MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.23ms. Allocated memory is still 94.4MB. Free memory was 50.0MB in the beginning and 68.7MB in the end (delta: -18.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 829.15ms. Allocated memory is still 94.4MB. Free memory was 68.7MB in the beginning and 49.1MB in the end (delta: 19.6MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 6156.42ms. Allocated memory was 94.4MB in the beginning and 174.1MB in the end (delta: 79.7MB). Free memory was 49.1MB in the beginning and 122.2MB in the end (delta: -73.1MB). Peak memory consumption was 84.5MB. Max. memory is 16.1GB. * Witness Printer took 52.56ms. Allocated memory is still 174.1MB. Free memory was 122.2MB in the beginning and 119.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 771 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.1s. Büchi inclusion checks took 2.0s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 680 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 771 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3514 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3514 mSDsluCounter, 4075 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2803 mSDsCounter, 88 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 201 IncrementalHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 88 mSolverCounterUnsat, 1272 mSDtfsCounter, 201 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 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: 164]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5746cf74=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64b5be5a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b9cb7d6=29, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cf7ef28=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d3ab052=0, tmp=0, retValue_acc=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57a718ee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75ba27ba=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63695807=0, retValue_acc=1, \result=1, tmp=1, retValue_acc=1, \result=1, tmp=1, tmp___2=29, tmp=0, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=1, \result=0, tmp=0, tmp___0=0, head=0, retValue_acc=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7daa4dcd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@102eb6fb=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d3a46f7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67d2d64=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 164]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int switchedOnBeforeTS ; [L221] int cleanupTimeShifts = 4; [L326] int pumpRunning = 0; [L327] int systemActive = 1; [L584] int waterLevel = 1; [L585] int methaneLevelCritical = 0; [L856] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L296] int retValue_acc ; [L297] int tmp ; [L301] FCALL select_helpers() [L302] FCALL select_features() [L303] CALL, EXPR valid_product() [L131] int retValue_acc ; [L134] retValue_acc = 1 [L135] return (retValue_acc); [L303] RET, EXPR valid_product() [L303] tmp = valid_product() [L305] COND TRUE \read(tmp) [L307] FCALL setup() [L308] CALL runTest() [L289] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 [L289] RET __utac_acc__Specification5_spec__1() [L290] CALL test() [L155] int splverifierCounter ; [L156] int tmp ; [L157] int tmp___0 ; [L158] int tmp___1 ; [L159] int tmp___2 ; [L162] splverifierCounter = 0 Loop: [L164] COND TRUE 1 [L166] COND TRUE splverifierCounter < 4 [L172] tmp = __VERIFIER_nondet_int() [L174] COND FALSE !(\read(tmp)) [L182] tmp___0 = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp___0)) [L192] tmp___2 = __VERIFIER_nondet_int() [L194] COND TRUE \read(tmp___2) [L209] CALL timeShift() [L334] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L486] int retValue_acc ; [L489] retValue_acc = pumpRunning [L490] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L334] RET __utac_acc__Specification5_spec__2() [L336] COND FALSE !(\read(pumpRunning)) [L343] COND TRUE \read(systemActive) [L345] CALL processEnvironment() [L417] int tmp ; [L420] COND FALSE !(\read(pumpRunning)) [L435] CALL processEnvironment__wrappee__methaneQuery() [L391] int tmp ; [L394] COND FALSE !(\read(pumpRunning)) [L409] CALL processEnvironment__wrappee__highWaterSensor() [L365] int tmp ; [L368] COND TRUE ! pumpRunning [L370] CALL, EXPR isHighWaterLevel() [L531] int retValue_acc ; [L532] int tmp ; [L533] int tmp___0 ; [L537] CALL, EXPR isHighWaterSensorDry() [L664] int retValue_acc ; [L667] COND TRUE waterLevel < 2 [L668] retValue_acc = 1 [L669] return (retValue_acc); [L537] RET, EXPR isHighWaterSensorDry() [L537] tmp = isHighWaterSensorDry() [L539] COND TRUE \read(tmp) [L540] tmp___0 = 0 [L544] retValue_acc = tmp___0 [L545] return (retValue_acc); [L370] RET, EXPR isHighWaterLevel() [L370] tmp = isHighWaterLevel() [L372] COND FALSE !(\read(tmp)) [L378] FCALL processEnvironment__wrappee__base() [L409] RET processEnvironment__wrappee__highWaterSensor() [L435] RET processEnvironment__wrappee__methaneQuery() [L345] RET processEnvironment() [L351] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L655] int retValue_acc ; [L658] retValue_acc = waterLevel [L659] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L486] int retValue_acc ; [L489] retValue_acc = pumpRunning [L490] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L351] RET __utac_acc__Specification5_spec__3() [L209] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:19:11,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)