./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product53.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_spec4_product53.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 e91d5c860cfea17112af53939b2fffb1e4c536355098377ab18c754994d1bc2b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:04,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:04,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:04,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:04,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:04,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:04,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:04,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:04,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:04,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:04,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:04,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:04,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:04,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:04,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:04,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:04,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:04,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:04,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:04,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:04,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:04,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:04,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:04,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:04,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:04,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:04,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:04,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:04,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:04,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:04,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:04,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:04,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:04,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:04,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:04,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:04,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:04,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:04,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:04,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:04,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:04,329 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:04,356 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:04,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:04,357 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:04,357 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:04,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:04,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:04,358 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:04,359 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:04,359 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:04,359 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:04,360 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:04,360 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:04,360 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:04,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:04,361 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:04,361 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:04,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:04,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:04,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:04,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:04,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:04,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:04,362 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:04,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:04,362 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:04,363 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:04,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:04,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:04,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:04,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:04,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:04,365 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:04,365 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e91d5c860cfea17112af53939b2fffb1e4c536355098377ab18c754994d1bc2b [2022-02-21 04:18:04,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:04,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:04,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:04,657 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:04,657 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:04,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2022-02-21 04:18:04,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be56aa528/fb3172c808984452a4a29360be3d8107/FLAGe9d5d2741 [2022-02-21 04:18:05,235 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:05,236 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2022-02-21 04:18:05,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be56aa528/fb3172c808984452a4a29360be3d8107/FLAGe9d5d2741 [2022-02-21 04:18:05,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be56aa528/fb3172c808984452a4a29360be3d8107 [2022-02-21 04:18:05,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:05,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:05,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:05,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:05,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:05,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:05" (1/1) ... [2022-02-21 04:18:05,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c842189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:05, skipping insertion in model container [2022-02-21 04:18:05,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:05" (1/1) ... [2022-02-21 04:18:05,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:05,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:06,079 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_spec4_product53.cil.c[15987,16000] [2022-02-21 04:18:06,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:06,101 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:06,206 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_spec4_product53.cil.c[15987,16000] [2022-02-21 04:18:06,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:06,247 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:06,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06 WrapperNode [2022-02-21 04:18:06,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:06,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:06,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:06,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:06,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,337 INFO L137 Inliner]: procedures = 56, calls = 158, calls flagged for inlining = 55, calls inlined = 137, statements flattened = 1001 [2022-02-21 04:18:06,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:06,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:06,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:06,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:06,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:06,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:06,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:06,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:06,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:06,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:06,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:18:06,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:18:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:06,615 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:06,618 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:07,298 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:07,309 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:07,309 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:07,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:07 BoogieIcfgContainer [2022-02-21 04:18:07,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:07,313 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:07,314 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:07,317 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:07,317 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:07,318 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:05" (1/3) ... [2022-02-21 04:18:07,318 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19fc753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:07, skipping insertion in model container [2022-02-21 04:18:07,319 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:07,319 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (2/3) ... [2022-02-21 04:18:07,319 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19fc753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:07, skipping insertion in model container [2022-02-21 04:18:07,319 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:07,319 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:07" (3/3) ... [2022-02-21 04:18:07,321 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product53.cil.c [2022-02-21 04:18:07,362 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:07,362 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:07,362 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:07,362 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:07,362 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:07,363 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:07,363 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:07,363 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:07,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 270 states, 269 states have (on average 1.3717472118959109) internal successors, (369), 269 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:07,475 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2022-02-21 04:18:07,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:07,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:07,480 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:07,480 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:07,480 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:07,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 270 states, 269 states have (on average 1.3717472118959109) internal successors, (369), 269 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:07,501 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2022-02-21 04:18:07,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:07,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:07,509 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:07,509 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:07,513 INFO L791 eck$LassoCheckResult]: Stem: 255#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 172#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 191#L743true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 168#L736true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 27#L751true main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 237#L977true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 268#L954true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 182#L430-2true [2022-02-21 04:18:07,514 INFO L793 eck$LassoCheckResult]: Loop: 182#L430-2true assume !false; 267#L431true assume test_~splverifierCounter~0#1 < 4; 222#L432true test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 233#L440true assume !(0 != test_~tmp~3#1); 232#L440-2true test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 86#L450true assume !(0 != test_~tmp___0~0#1); 23#L450-2true test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 53#L460true assume 0 != test_~tmp___2~0#1; 76#L466-2true assume { :begin_inline_timeShift } true; 36#L502true assume !(0 != ~pumpRunning~0); 126#L502-2true assume !(0 != ~systemActive~0); 216#L509-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 211#L841true __utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; 22#L877true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); 271#L877-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 220#L519true assume { :end_inline_timeShift } true; 182#L430-2true [2022-02-21 04:18:07,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:07,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:18:07,530 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:07,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062077946] [2022-02-21 04:18:07,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:07,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:07,680 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:07,740 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:07,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:07,744 INFO L85 PathProgramCache]: Analyzing trace with hash 408252804, now seen corresponding path program 1 times [2022-02-21 04:18:07,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:07,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294366052] [2022-02-21 04:18:07,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:07,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:07,767 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:07,783 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:07,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:07,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1763671880, now seen corresponding path program 1 times [2022-02-21 04:18:07,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:07,786 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760745281] [2022-02-21 04:18:07,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:07,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:07,939 INFO L290 TraceCheckUtils]: 0: Hoare triple {278#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; {280#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:07,941 INFO L290 TraceCheckUtils]: 1: Hoare triple {280#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; {280#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:07,942 INFO L290 TraceCheckUtils]: 2: Hoare triple {280#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {280#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:07,942 INFO L290 TraceCheckUtils]: 3: Hoare triple {280#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; {281#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:07,943 INFO L290 TraceCheckUtils]: 4: Hoare triple {281#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; {282#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} is VALID [2022-02-21 04:18:07,943 INFO L290 TraceCheckUtils]: 5: Hoare triple {282#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; {283#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:07,944 INFO L290 TraceCheckUtils]: 6: Hoare triple {283#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {283#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:07,945 INFO L290 TraceCheckUtils]: 7: Hoare triple {283#(not (= 0 ~systemActive~0))} assume !false; {283#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:07,946 INFO L290 TraceCheckUtils]: 8: Hoare triple {283#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {283#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:07,946 INFO L290 TraceCheckUtils]: 9: Hoare triple {283#(not (= 0 ~systemActive~0))} test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; {283#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:07,947 INFO L290 TraceCheckUtils]: 10: Hoare triple {283#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~3#1); {283#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:07,947 INFO L290 TraceCheckUtils]: 11: Hoare triple {283#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {283#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:07,948 INFO L290 TraceCheckUtils]: 12: Hoare triple {283#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {283#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:07,948 INFO L290 TraceCheckUtils]: 13: Hoare triple {283#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {283#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:07,949 INFO L290 TraceCheckUtils]: 14: Hoare triple {283#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {283#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:07,950 INFO L290 TraceCheckUtils]: 15: Hoare triple {283#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {283#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:07,950 INFO L290 TraceCheckUtils]: 16: Hoare triple {283#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {283#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:07,951 INFO L290 TraceCheckUtils]: 17: Hoare triple {283#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {279#false} is VALID [2022-02-21 04:18:07,952 INFO L290 TraceCheckUtils]: 18: Hoare triple {279#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {279#false} is VALID [2022-02-21 04:18:07,953 INFO L290 TraceCheckUtils]: 19: Hoare triple {279#false} __utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; {279#false} is VALID [2022-02-21 04:18:07,953 INFO L290 TraceCheckUtils]: 20: Hoare triple {279#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); {279#false} is VALID [2022-02-21 04:18:07,953 INFO L290 TraceCheckUtils]: 21: Hoare triple {279#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {279#false} is VALID [2022-02-21 04:18:07,953 INFO L290 TraceCheckUtils]: 22: Hoare triple {279#false} assume { :end_inline_timeShift } true; {279#false} is VALID [2022-02-21 04:18:07,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:07,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:07,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760745281] [2022-02-21 04:18:07,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760745281] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:07,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:07,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:07,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557638820] [2022-02-21 04:18:07,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:08,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:08,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:08,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:08,105 INFO L87 Difference]: Start difference. First operand has 270 states, 269 states have (on average 1.3717472118959109) internal successors, (369), 269 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:08,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:08,939 INFO L93 Difference]: Finished difference Result 267 states and 355 transitions. [2022-02-21 04:18:08,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:18:08,941 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:08,965 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:08,969 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 355 transitions. [2022-02-21 04:18:08,980 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 172 [2022-02-21 04:18:08,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 257 states and 345 transitions. [2022-02-21 04:18:08,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 257 [2022-02-21 04:18:08,995 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 257 [2022-02-21 04:18:08,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 257 states and 345 transitions. [2022-02-21 04:18:08,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:08,997 INFO L681 BuchiCegarLoop]: Abstraction has 257 states and 345 transitions. [2022-02-21 04:18:09,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states and 345 transitions. [2022-02-21 04:18:09,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2022-02-21 04:18:09,029 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:09,031 INFO L82 GeneralOperation]: Start isEquivalent. First operand 257 states and 345 transitions. Second operand has 257 states, 257 states have (on average 1.3424124513618676) internal successors, (345), 256 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:09,033 INFO L74 IsIncluded]: Start isIncluded. First operand 257 states and 345 transitions. Second operand has 257 states, 257 states have (on average 1.3424124513618676) internal successors, (345), 256 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:09,036 INFO L87 Difference]: Start difference. First operand 257 states and 345 transitions. Second operand has 257 states, 257 states have (on average 1.3424124513618676) internal successors, (345), 256 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:09,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:09,046 INFO L93 Difference]: Finished difference Result 257 states and 345 transitions. [2022-02-21 04:18:09,046 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 345 transitions. [2022-02-21 04:18:09,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:09,049 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:09,050 INFO L74 IsIncluded]: Start isIncluded. First operand has 257 states, 257 states have (on average 1.3424124513618676) internal successors, (345), 256 states have internal predecessors, (345), 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 257 states and 345 transitions. [2022-02-21 04:18:09,051 INFO L87 Difference]: Start difference. First operand has 257 states, 257 states have (on average 1.3424124513618676) internal successors, (345), 256 states have internal predecessors, (345), 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 257 states and 345 transitions. [2022-02-21 04:18:09,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:09,059 INFO L93 Difference]: Finished difference Result 257 states and 345 transitions. [2022-02-21 04:18:09,060 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 345 transitions. [2022-02-21 04:18:09,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:09,062 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:09,062 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:09,062 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:09,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 257 states have (on average 1.3424124513618676) internal successors, (345), 256 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:09,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 345 transitions. [2022-02-21 04:18:09,072 INFO L704 BuchiCegarLoop]: Abstraction has 257 states and 345 transitions. [2022-02-21 04:18:09,072 INFO L587 BuchiCegarLoop]: Abstraction has 257 states and 345 transitions. [2022-02-21 04:18:09,072 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:09,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 257 states and 345 transitions. [2022-02-21 04:18:09,074 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 172 [2022-02-21 04:18:09,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:09,075 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:09,075 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:09,076 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] [2022-02-21 04:18:09,076 INFO L791 eck$LassoCheckResult]: Stem: 811#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 781#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 782#L743 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 776#L736 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 607#L751 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 608#L977 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 809#L954 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 789#L430-2 [2022-02-21 04:18:09,076 INFO L793 eck$LassoCheckResult]: Loop: 789#L430-2 assume !false; 790#L431 assume test_~splverifierCounter~0#1 < 4; 804#L432 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 805#L440 assume !(0 != test_~tmp~3#1); 656#L440-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 692#L450 assume !(0 != test_~tmp___0~0#1); 598#L450-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 599#L460 assume 0 != test_~tmp___2~0#1; 652#L466-2 assume { :begin_inline_timeShift } true; 621#L502 assume !(0 != ~pumpRunning~0); 622#L502-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 716#L586 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret34#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~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 717#L809 isMethaneAlarm_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~3#1 := isMethaneAlarm_#t~ret34#1;havoc isMethaneAlarm_#t~ret34#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; 680#L630 processEnvironment_#t~ret33#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret33#1;havoc processEnvironment_#t~ret33#1; 633#L590 assume 0 != processEnvironment_~tmp~6#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 634#L620 assume { :end_inline_deactivatePump } true; 645#L586-1 assume { :end_inline_processEnvironment } true; 767#L509-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 800#L841 __utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; 595#L877 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); 596#L877-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 803#L519 assume { :end_inline_timeShift } true; 789#L430-2 [2022-02-21 04:18:09,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:09,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:18:09,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:09,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11703532] [2022-02-21 04:18:09,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:09,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:09,094 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:09,109 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:09,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:09,110 INFO L85 PathProgramCache]: Analyzing trace with hash -49321715, now seen corresponding path program 1 times [2022-02-21 04:18:09,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:09,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851986088] [2022-02-21 04:18:09,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:09,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:09,128 INFO L290 TraceCheckUtils]: 0: Hoare triple {1331#true} assume !false; {1331#true} is VALID [2022-02-21 04:18:09,128 INFO L290 TraceCheckUtils]: 1: Hoare triple {1331#true} assume test_~splverifierCounter~0#1 < 4; {1331#true} is VALID [2022-02-21 04:18:09,129 INFO L290 TraceCheckUtils]: 2: Hoare triple {1331#true} test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; {1331#true} is VALID [2022-02-21 04:18:09,129 INFO L290 TraceCheckUtils]: 3: Hoare triple {1331#true} assume !(0 != test_~tmp~3#1); {1331#true} is VALID [2022-02-21 04:18:09,129 INFO L290 TraceCheckUtils]: 4: Hoare triple {1331#true} test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {1331#true} is VALID [2022-02-21 04:18:09,129 INFO L290 TraceCheckUtils]: 5: Hoare triple {1331#true} assume !(0 != test_~tmp___0~0#1); {1331#true} is VALID [2022-02-21 04:18:09,130 INFO L290 TraceCheckUtils]: 6: Hoare triple {1331#true} test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {1331#true} is VALID [2022-02-21 04:18:09,130 INFO L290 TraceCheckUtils]: 7: Hoare triple {1331#true} assume 0 != test_~tmp___2~0#1; {1331#true} is VALID [2022-02-21 04:18:09,130 INFO L290 TraceCheckUtils]: 8: Hoare triple {1331#true} assume { :begin_inline_timeShift } true; {1331#true} is VALID [2022-02-21 04:18:09,131 INFO L290 TraceCheckUtils]: 9: Hoare triple {1331#true} assume !(0 != ~pumpRunning~0); {1333#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:09,131 INFO L290 TraceCheckUtils]: 10: Hoare triple {1333#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {1333#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:09,132 INFO L290 TraceCheckUtils]: 11: Hoare triple {1333#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret34#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~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; {1332#false} is VALID [2022-02-21 04:18:09,132 INFO L290 TraceCheckUtils]: 12: Hoare triple {1332#false} isMethaneAlarm_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~3#1 := isMethaneAlarm_#t~ret34#1;havoc isMethaneAlarm_#t~ret34#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; {1332#false} is VALID [2022-02-21 04:18:09,132 INFO L290 TraceCheckUtils]: 13: Hoare triple {1332#false} processEnvironment_#t~ret33#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret33#1;havoc processEnvironment_#t~ret33#1; {1332#false} is VALID [2022-02-21 04:18:09,132 INFO L290 TraceCheckUtils]: 14: Hoare triple {1332#false} assume 0 != processEnvironment_~tmp~6#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {1332#false} is VALID [2022-02-21 04:18:09,132 INFO L290 TraceCheckUtils]: 15: Hoare triple {1332#false} assume { :end_inline_deactivatePump } true; {1332#false} is VALID [2022-02-21 04:18:09,133 INFO L290 TraceCheckUtils]: 16: Hoare triple {1332#false} assume { :end_inline_processEnvironment } true; {1332#false} is VALID [2022-02-21 04:18:09,133 INFO L290 TraceCheckUtils]: 17: Hoare triple {1332#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {1332#false} is VALID [2022-02-21 04:18:09,133 INFO L290 TraceCheckUtils]: 18: Hoare triple {1332#false} __utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; {1332#false} is VALID [2022-02-21 04:18:09,133 INFO L290 TraceCheckUtils]: 19: Hoare triple {1332#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); {1332#false} is VALID [2022-02-21 04:18:09,134 INFO L290 TraceCheckUtils]: 20: Hoare triple {1332#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {1332#false} is VALID [2022-02-21 04:18:09,134 INFO L290 TraceCheckUtils]: 21: Hoare triple {1332#false} assume { :end_inline_timeShift } true; {1332#false} is VALID [2022-02-21 04:18:09,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:09,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:09,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851986088] [2022-02-21 04:18:09,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851986088] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:09,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:09,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:09,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804078030] [2022-02-21 04:18:09,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:09,136 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:09,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:09,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:09,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:09,137 INFO L87 Difference]: Start difference. First operand 257 states and 345 transitions. cyclomatic complexity: 90 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:09,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:09,448 INFO L93 Difference]: Finished difference Result 267 states and 338 transitions. [2022-02-21 04:18:09,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:09,449 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:09,466 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:09,467 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 338 transitions. [2022-02-21 04:18:09,474 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 184 [2022-02-21 04:18:09,482 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 267 states and 338 transitions. [2022-02-21 04:18:09,482 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 267 [2022-02-21 04:18:09,482 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 267 [2022-02-21 04:18:09,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 267 states and 338 transitions. [2022-02-21 04:18:09,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:09,483 INFO L681 BuchiCegarLoop]: Abstraction has 267 states and 338 transitions. [2022-02-21 04:18:09,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states and 338 transitions. [2022-02-21 04:18:09,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2022-02-21 04:18:09,492 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:09,493 INFO L82 GeneralOperation]: Start isEquivalent. First operand 267 states and 338 transitions. Second operand has 267 states, 267 states have (on average 1.2659176029962547) internal successors, (338), 266 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:09,494 INFO L74 IsIncluded]: Start isIncluded. First operand 267 states and 338 transitions. Second operand has 267 states, 267 states have (on average 1.2659176029962547) internal successors, (338), 266 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:09,494 INFO L87 Difference]: Start difference. First operand 267 states and 338 transitions. Second operand has 267 states, 267 states have (on average 1.2659176029962547) internal successors, (338), 266 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:09,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:09,501 INFO L93 Difference]: Finished difference Result 267 states and 338 transitions. [2022-02-21 04:18:09,501 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 338 transitions. [2022-02-21 04:18:09,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:09,502 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:09,503 INFO L74 IsIncluded]: Start isIncluded. First operand has 267 states, 267 states have (on average 1.2659176029962547) internal successors, (338), 266 states have internal predecessors, (338), 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 267 states and 338 transitions. [2022-02-21 04:18:09,504 INFO L87 Difference]: Start difference. First operand has 267 states, 267 states have (on average 1.2659176029962547) internal successors, (338), 266 states have internal predecessors, (338), 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 267 states and 338 transitions. [2022-02-21 04:18:09,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:09,511 INFO L93 Difference]: Finished difference Result 267 states and 338 transitions. [2022-02-21 04:18:09,511 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 338 transitions. [2022-02-21 04:18:09,512 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:09,512 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:09,512 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:09,512 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:09,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 267 states have (on average 1.2659176029962547) internal successors, (338), 266 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:09,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 338 transitions. [2022-02-21 04:18:09,519 INFO L704 BuchiCegarLoop]: Abstraction has 267 states and 338 transitions. [2022-02-21 04:18:09,519 INFO L587 BuchiCegarLoop]: Abstraction has 267 states and 338 transitions. [2022-02-21 04:18:09,519 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:09,519 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 267 states and 338 transitions. [2022-02-21 04:18:09,527 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 184 [2022-02-21 04:18:09,527 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:09,527 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:09,528 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:09,528 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:09,528 INFO L791 eck$LassoCheckResult]: Stem: 1813#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 1774#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1775#L743 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1770#L736 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1643#L751 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1644#L977 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1808#L954 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1782#L430-2 [2022-02-21 04:18:09,531 INFO L793 eck$LassoCheckResult]: Loop: 1782#L430-2 assume !false; 1783#L431 assume test_~splverifierCounter~0#1 < 4; 1802#L432 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1803#L440 assume !(0 != test_~tmp~3#1); 1679#L440-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1703#L450 assume !(0 != test_~tmp___0~0#1); 1635#L450-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1636#L460 assume 0 != test_~tmp___2~0#1; 1675#L466-2 assume { :begin_inline_timeShift } true; 1648#L502 assume !(0 != ~pumpRunning~0); 1649#L502-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1716#L586 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret32#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 1707#L560-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1612#L534-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 1613#L849-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1756#L854-3 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 1804#L688-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1688#L688-11 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 1689#L694-3 processEnvironment__wrappee__highWaterSensor_#t~ret31#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret31#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1; 1752#L538-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1753#L526-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1650#L534-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1651#L560-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1668#L586-1 assume { :end_inline_processEnvironment } true; 1759#L509-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 1795#L841 __utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; 1632#L877 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); 1633#L877-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1799#L519 assume { :end_inline_timeShift } true; 1782#L430-2 [2022-02-21 04:18:09,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:09,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:18:09,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:09,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33612184] [2022-02-21 04:18:09,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:09,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:09,561 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:09,583 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:09,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:09,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1895097644, now seen corresponding path program 1 times [2022-02-21 04:18:09,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:09,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324979071] [2022-02-21 04:18:09,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:09,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:09,627 INFO L290 TraceCheckUtils]: 0: Hoare triple {2407#true} assume !false; {2407#true} is VALID [2022-02-21 04:18:09,627 INFO L290 TraceCheckUtils]: 1: Hoare triple {2407#true} assume test_~splverifierCounter~0#1 < 4; {2407#true} is VALID [2022-02-21 04:18:09,627 INFO L290 TraceCheckUtils]: 2: Hoare triple {2407#true} test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; {2407#true} is VALID [2022-02-21 04:18:09,628 INFO L290 TraceCheckUtils]: 3: Hoare triple {2407#true} assume !(0 != test_~tmp~3#1); {2407#true} is VALID [2022-02-21 04:18:09,628 INFO L290 TraceCheckUtils]: 4: Hoare triple {2407#true} test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {2407#true} is VALID [2022-02-21 04:18:09,628 INFO L290 TraceCheckUtils]: 5: Hoare triple {2407#true} assume !(0 != test_~tmp___0~0#1); {2407#true} is VALID [2022-02-21 04:18:09,628 INFO L290 TraceCheckUtils]: 6: Hoare triple {2407#true} test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {2407#true} is VALID [2022-02-21 04:18:09,628 INFO L290 TraceCheckUtils]: 7: Hoare triple {2407#true} assume 0 != test_~tmp___2~0#1; {2407#true} is VALID [2022-02-21 04:18:09,628 INFO L290 TraceCheckUtils]: 8: Hoare triple {2407#true} assume { :begin_inline_timeShift } true; {2407#true} is VALID [2022-02-21 04:18:09,628 INFO L290 TraceCheckUtils]: 9: Hoare triple {2407#true} assume !(0 != ~pumpRunning~0); {2407#true} is VALID [2022-02-21 04:18:09,629 INFO L290 TraceCheckUtils]: 10: Hoare triple {2407#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {2407#true} is VALID [2022-02-21 04:18:09,629 INFO L290 TraceCheckUtils]: 11: Hoare triple {2407#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret32#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; {2407#true} is VALID [2022-02-21 04:18:09,629 INFO L290 TraceCheckUtils]: 12: Hoare triple {2407#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; {2407#true} is VALID [2022-02-21 04:18:09,629 INFO L290 TraceCheckUtils]: 13: Hoare triple {2407#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; {2407#true} is VALID [2022-02-21 04:18:09,630 INFO L290 TraceCheckUtils]: 14: Hoare triple {2407#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; {2409#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} is VALID [2022-02-21 04:18:09,630 INFO L290 TraceCheckUtils]: 15: Hoare triple {2409#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; {2410#(= |ULTIMATE.start_isHighWaterLevel_~tmp~7#1| 0)} is VALID [2022-02-21 04:18:09,630 INFO L290 TraceCheckUtils]: 16: Hoare triple {2410#(= |ULTIMATE.start_isHighWaterLevel_~tmp~7#1| 0)} assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; {2408#false} is VALID [2022-02-21 04:18:09,630 INFO L290 TraceCheckUtils]: 17: Hoare triple {2408#false} isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; {2408#false} is VALID [2022-02-21 04:18:09,632 INFO L290 TraceCheckUtils]: 18: Hoare triple {2408#false} processEnvironment__wrappee__highWaterSensor_#t~ret31#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret31#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1; {2408#false} is VALID [2022-02-21 04:18:09,633 INFO L290 TraceCheckUtils]: 19: Hoare triple {2408#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2408#false} is VALID [2022-02-21 04:18:09,633 INFO L290 TraceCheckUtils]: 20: Hoare triple {2408#false} assume { :end_inline_processEnvironment__wrappee__base } true; {2408#false} is VALID [2022-02-21 04:18:09,633 INFO L290 TraceCheckUtils]: 21: Hoare triple {2408#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {2408#false} is VALID [2022-02-21 04:18:09,633 INFO L290 TraceCheckUtils]: 22: Hoare triple {2408#false} assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; {2408#false} is VALID [2022-02-21 04:18:09,634 INFO L290 TraceCheckUtils]: 23: Hoare triple {2408#false} assume { :end_inline_processEnvironment } true; {2408#false} is VALID [2022-02-21 04:18:09,634 INFO L290 TraceCheckUtils]: 24: Hoare triple {2408#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {2408#false} is VALID [2022-02-21 04:18:09,634 INFO L290 TraceCheckUtils]: 25: Hoare triple {2408#false} __utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; {2408#false} is VALID [2022-02-21 04:18:09,634 INFO L290 TraceCheckUtils]: 26: Hoare triple {2408#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); {2408#false} is VALID [2022-02-21 04:18:09,634 INFO L290 TraceCheckUtils]: 27: Hoare triple {2408#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {2408#false} is VALID [2022-02-21 04:18:09,635 INFO L290 TraceCheckUtils]: 28: Hoare triple {2408#false} assume { :end_inline_timeShift } true; {2408#false} is VALID [2022-02-21 04:18:09,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:09,636 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:09,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324979071] [2022-02-21 04:18:09,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324979071] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:09,637 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:09,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:18:09,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528405426] [2022-02-21 04:18:09,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:09,638 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:09,638 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:09,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 04:18:09,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 04:18:09,639 INFO L87 Difference]: Start difference. First operand 267 states and 338 transitions. cyclomatic complexity: 73 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:10,359 INFO L93 Difference]: Finished difference Result 751 states and 928 transitions. [2022-02-21 04:18:10,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:18:10,359 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,385 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:10,386 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 751 states and 928 transitions. [2022-02-21 04:18:10,416 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 528 [2022-02-21 04:18:10,445 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 751 states to 751 states and 928 transitions. [2022-02-21 04:18:10,445 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 751 [2022-02-21 04:18:10,446 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 751 [2022-02-21 04:18:10,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 751 states and 928 transitions. [2022-02-21 04:18:10,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:10,447 INFO L681 BuchiCegarLoop]: Abstraction has 751 states and 928 transitions. [2022-02-21 04:18:10,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states and 928 transitions. [2022-02-21 04:18:10,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 285. [2022-02-21 04:18:10,455 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:10,456 INFO L82 GeneralOperation]: Start isEquivalent. First operand 751 states and 928 transitions. Second operand has 285 states, 285 states have (on average 1.249122807017544) internal successors, (356), 284 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,457 INFO L74 IsIncluded]: Start isIncluded. First operand 751 states and 928 transitions. Second operand has 285 states, 285 states have (on average 1.249122807017544) internal successors, (356), 284 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,457 INFO L87 Difference]: Start difference. First operand 751 states and 928 transitions. Second operand has 285 states, 285 states have (on average 1.249122807017544) internal successors, (356), 284 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:10,483 INFO L93 Difference]: Finished difference Result 751 states and 928 transitions. [2022-02-21 04:18:10,483 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 928 transitions. [2022-02-21 04:18:10,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:10,484 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:10,485 INFO L74 IsIncluded]: Start isIncluded. First operand has 285 states, 285 states have (on average 1.249122807017544) internal successors, (356), 284 states have internal predecessors, (356), 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 751 states and 928 transitions. [2022-02-21 04:18:10,485 INFO L87 Difference]: Start difference. First operand has 285 states, 285 states have (on average 1.249122807017544) internal successors, (356), 284 states have internal predecessors, (356), 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 751 states and 928 transitions. [2022-02-21 04:18:10,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:10,510 INFO L93 Difference]: Finished difference Result 751 states and 928 transitions. [2022-02-21 04:18:10,510 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 928 transitions. [2022-02-21 04:18:10,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:10,512 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:10,512 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:10,512 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:10,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 285 states have (on average 1.249122807017544) internal successors, (356), 284 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 356 transitions. [2022-02-21 04:18:10,518 INFO L704 BuchiCegarLoop]: Abstraction has 285 states and 356 transitions. [2022-02-21 04:18:10,518 INFO L587 BuchiCegarLoop]: Abstraction has 285 states and 356 transitions. [2022-02-21 04:18:10,518 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:18:10,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 285 states and 356 transitions. [2022-02-21 04:18:10,520 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 196 [2022-02-21 04:18:10,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:10,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:10,520 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:10,520 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:10,521 INFO L791 eck$LassoCheckResult]: Stem: 3397#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 3345#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 3346#L743 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3340#L736 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 3208#L751 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 3209#L977 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 3390#L954 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3356#L430-2 [2022-02-21 04:18:10,521 INFO L793 eck$LassoCheckResult]: Loop: 3356#L430-2 assume !false; 3357#L431 assume test_~splverifierCounter~0#1 < 4; 3382#L432 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 3383#L440 assume !(0 != test_~tmp~3#1); 3244#L440-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 3268#L450 assume !(0 != test_~tmp___0~0#1); 3200#L450-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 3201#L460 assume 0 != test_~tmp___2~0#1; 3240#L466-2 assume { :begin_inline_timeShift } true; 3213#L502 assume !(0 != ~pumpRunning~0); 3214#L502-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 3282#L586 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret32#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 3273#L560-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 3176#L534-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 3177#L849-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 3324#L854-3 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 3395#L688-9 assume !(0 != isHighWaterLevel_~tmp~7#1);isHighWaterLevel_~tmp___0~1#1 := 1; 3253#L688-11 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 3254#L694-3 processEnvironment__wrappee__highWaterSensor_#t~ret31#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret31#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1; 3319#L538-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3320#L526-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3215#L534-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3216#L560-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 3233#L586-1 assume { :end_inline_processEnvironment } true; 3419#L509-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 3373#L841 __utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; 3197#L877 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); 3198#L877-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 3402#L519 assume { :end_inline_timeShift } true; 3356#L430-2 [2022-02-21 04:18:10,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:10,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:18:10,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:10,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284702146] [2022-02-21 04:18:10,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:10,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:10,539 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:10,554 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:10,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:10,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1308291630, now seen corresponding path program 1 times [2022-02-21 04:18:10,555 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:10,555 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837159952] [2022-02-21 04:18:10,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:10,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:10,595 INFO L290 TraceCheckUtils]: 0: Hoare triple {4957#true} assume !false; {4957#true} is VALID [2022-02-21 04:18:10,595 INFO L290 TraceCheckUtils]: 1: Hoare triple {4957#true} assume test_~splverifierCounter~0#1 < 4; {4957#true} is VALID [2022-02-21 04:18:10,595 INFO L290 TraceCheckUtils]: 2: Hoare triple {4957#true} test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; {4957#true} is VALID [2022-02-21 04:18:10,596 INFO L290 TraceCheckUtils]: 3: Hoare triple {4957#true} assume !(0 != test_~tmp~3#1); {4957#true} is VALID [2022-02-21 04:18:10,596 INFO L290 TraceCheckUtils]: 4: Hoare triple {4957#true} test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {4957#true} is VALID [2022-02-21 04:18:10,596 INFO L290 TraceCheckUtils]: 5: Hoare triple {4957#true} assume !(0 != test_~tmp___0~0#1); {4957#true} is VALID [2022-02-21 04:18:10,596 INFO L290 TraceCheckUtils]: 6: Hoare triple {4957#true} test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {4957#true} is VALID [2022-02-21 04:18:10,596 INFO L290 TraceCheckUtils]: 7: Hoare triple {4957#true} assume 0 != test_~tmp___2~0#1; {4957#true} is VALID [2022-02-21 04:18:10,596 INFO L290 TraceCheckUtils]: 8: Hoare triple {4957#true} assume { :begin_inline_timeShift } true; {4957#true} is VALID [2022-02-21 04:18:10,596 INFO L290 TraceCheckUtils]: 9: Hoare triple {4957#true} assume !(0 != ~pumpRunning~0); {4957#true} is VALID [2022-02-21 04:18:10,597 INFO L290 TraceCheckUtils]: 10: Hoare triple {4957#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {4957#true} is VALID [2022-02-21 04:18:10,597 INFO L290 TraceCheckUtils]: 11: Hoare triple {4957#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret32#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; {4957#true} is VALID [2022-02-21 04:18:10,597 INFO L290 TraceCheckUtils]: 12: Hoare triple {4957#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; {4957#true} is VALID [2022-02-21 04:18:10,597 INFO L290 TraceCheckUtils]: 13: Hoare triple {4957#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; {4957#true} is VALID [2022-02-21 04:18:10,597 INFO L290 TraceCheckUtils]: 14: Hoare triple {4957#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; {4957#true} is VALID [2022-02-21 04:18:10,597 INFO L290 TraceCheckUtils]: 15: Hoare triple {4957#true} isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; {4957#true} is VALID [2022-02-21 04:18:10,598 INFO L290 TraceCheckUtils]: 16: Hoare triple {4957#true} assume !(0 != isHighWaterLevel_~tmp~7#1);isHighWaterLevel_~tmp___0~1#1 := 1; {4959#(not (= |ULTIMATE.start_isHighWaterLevel_~tmp___0~1#1| 0))} is VALID [2022-02-21 04:18:10,599 INFO L290 TraceCheckUtils]: 17: Hoare triple {4959#(not (= |ULTIMATE.start_isHighWaterLevel_~tmp___0~1#1| 0))} isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; {4960#(not (= |ULTIMATE.start_isHighWaterLevel_#res#1| 0))} is VALID [2022-02-21 04:18:10,600 INFO L290 TraceCheckUtils]: 18: Hoare triple {4960#(not (= |ULTIMATE.start_isHighWaterLevel_#res#1| 0))} processEnvironment__wrappee__highWaterSensor_#t~ret31#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret31#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1; {4961#(not (= |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~4#1| 0))} is VALID [2022-02-21 04:18:10,600 INFO L290 TraceCheckUtils]: 19: Hoare triple {4961#(not (= |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~4#1| 0))} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {4958#false} is VALID [2022-02-21 04:18:10,600 INFO L290 TraceCheckUtils]: 20: Hoare triple {4958#false} assume { :end_inline_processEnvironment__wrappee__base } true; {4958#false} is VALID [2022-02-21 04:18:10,601 INFO L290 TraceCheckUtils]: 21: Hoare triple {4958#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {4958#false} is VALID [2022-02-21 04:18:10,601 INFO L290 TraceCheckUtils]: 22: Hoare triple {4958#false} assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; {4958#false} is VALID [2022-02-21 04:18:10,601 INFO L290 TraceCheckUtils]: 23: Hoare triple {4958#false} assume { :end_inline_processEnvironment } true; {4958#false} is VALID [2022-02-21 04:18:10,601 INFO L290 TraceCheckUtils]: 24: Hoare triple {4958#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {4958#false} is VALID [2022-02-21 04:18:10,601 INFO L290 TraceCheckUtils]: 25: Hoare triple {4958#false} __utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; {4958#false} is VALID [2022-02-21 04:18:10,601 INFO L290 TraceCheckUtils]: 26: Hoare triple {4958#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); {4958#false} is VALID [2022-02-21 04:18:10,601 INFO L290 TraceCheckUtils]: 27: Hoare triple {4958#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {4958#false} is VALID [2022-02-21 04:18:10,602 INFO L290 TraceCheckUtils]: 28: Hoare triple {4958#false} assume { :end_inline_timeShift } true; {4958#false} is VALID [2022-02-21 04:18:10,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:10,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:10,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837159952] [2022-02-21 04:18:10,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837159952] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:10,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:10,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:10,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280158607] [2022-02-21 04:18:10,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:10,603 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:10,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:10,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:10,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:10,604 INFO L87 Difference]: Start difference. First operand 285 states and 356 transitions. cyclomatic complexity: 73 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:11,404 INFO L93 Difference]: Finished difference Result 807 states and 1004 transitions. [2022-02-21 04:18:11,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:11,404 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,422 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:11,423 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 807 states and 1004 transitions. [2022-02-21 04:18:11,452 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 576 [2022-02-21 04:18:11,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 807 states to 807 states and 1004 transitions. [2022-02-21 04:18:11,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 807 [2022-02-21 04:18:11,479 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 807 [2022-02-21 04:18:11,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 807 states and 1004 transitions. [2022-02-21 04:18:11,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:11,481 INFO L681 BuchiCegarLoop]: Abstraction has 807 states and 1004 transitions. [2022-02-21 04:18:11,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states and 1004 transitions. [2022-02-21 04:18:11,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 312. [2022-02-21 04:18:11,487 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:11,487 INFO L82 GeneralOperation]: Start isEquivalent. First operand 807 states and 1004 transitions. Second operand has 312 states, 312 states have (on average 1.2275641025641026) internal successors, (383), 311 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,488 INFO L74 IsIncluded]: Start isIncluded. First operand 807 states and 1004 transitions. Second operand has 312 states, 312 states have (on average 1.2275641025641026) internal successors, (383), 311 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,489 INFO L87 Difference]: Start difference. First operand 807 states and 1004 transitions. Second operand has 312 states, 312 states have (on average 1.2275641025641026) internal successors, (383), 311 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:11,515 INFO L93 Difference]: Finished difference Result 807 states and 1004 transitions. [2022-02-21 04:18:11,515 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1004 transitions. [2022-02-21 04:18:11,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:11,517 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:11,518 INFO L74 IsIncluded]: Start isIncluded. First operand has 312 states, 312 states have (on average 1.2275641025641026) internal successors, (383), 311 states have internal predecessors, (383), 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 807 states and 1004 transitions. [2022-02-21 04:18:11,519 INFO L87 Difference]: Start difference. First operand has 312 states, 312 states have (on average 1.2275641025641026) internal successors, (383), 311 states have internal predecessors, (383), 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 807 states and 1004 transitions. [2022-02-21 04:18:11,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:11,545 INFO L93 Difference]: Finished difference Result 807 states and 1004 transitions. [2022-02-21 04:18:11,546 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1004 transitions. [2022-02-21 04:18:11,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:11,547 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:11,547 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:11,547 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:11,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 312 states have (on average 1.2275641025641026) internal successors, (383), 311 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 383 transitions. [2022-02-21 04:18:11,553 INFO L704 BuchiCegarLoop]: Abstraction has 312 states and 383 transitions. [2022-02-21 04:18:11,553 INFO L587 BuchiCegarLoop]: Abstraction has 312 states and 383 transitions. [2022-02-21 04:18:11,554 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:18:11,554 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 312 states and 383 transitions. [2022-02-21 04:18:11,555 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2022-02-21 04:18:11,555 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:11,555 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:11,556 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:11,556 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:11,556 INFO L791 eck$LassoCheckResult]: Stem: 6014#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 5952#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 5953#L743 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5947#L736 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 5817#L751 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 5818#L977 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 6004#L954 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 6019#L430-2 [2022-02-21 04:18:11,556 INFO L793 eck$LassoCheckResult]: Loop: 6019#L430-2 assume !false; 6061#L431 assume test_~splverifierCounter~0#1 < 4; 6060#L432 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 6058#L440 assume !(0 != test_~tmp~3#1); 6056#L440-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 6054#L450 assume !(0 != test_~tmp___0~0#1); 6052#L450-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 6051#L460 assume 0 != test_~tmp___2~0#1; 6049#L466-2 assume { :begin_inline_timeShift } true; 5822#L502 assume !(0 != ~pumpRunning~0); 5823#L502-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 5893#L586 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret32#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 5884#L560-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 5785#L534-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 5786#L849-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 5932#L854-3 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 6045#L688-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 6044#L688-11 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 6043#L694-3 processEnvironment__wrappee__highWaterSensor_#t~ret31#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret31#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1; 6042#L538-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5957#L526-6 assume { :end_inline_processEnvironment__wrappee__base } true; 5958#L534-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5849#L560-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 5842#L586-1 assume { :end_inline_processEnvironment } true; 5935#L509-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 5981#L841 __utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; 5982#L877 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); 6064#L877-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 6062#L519 assume { :end_inline_timeShift } true; 6019#L430-2 [2022-02-21 04:18:11,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:11,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-02-21 04:18:11,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:11,558 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018024364] [2022-02-21 04:18:11,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:11,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,565 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,573 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:11,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:11,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1120005974, now seen corresponding path program 1 times [2022-02-21 04:18:11,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:11,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479697063] [2022-02-21 04:18:11,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:11,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,579 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,584 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:11,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:11,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1245740698, now seen corresponding path program 1 times [2022-02-21 04:18:11,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:11,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222105682] [2022-02-21 04:18:11,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:11,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,596 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,609 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:14,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:14 BoogieIcfgContainer [2022-02-21 04:18:14,693 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:14,693 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:14,693 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:14,694 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:14,694 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:07" (3/4) ... [2022-02-21 04:18:14,696 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:14,742 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:14,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:14,744 INFO L158 Benchmark]: Toolchain (without parser) took 9002.80ms. Allocated memory was 83.9MB in the beginning and 201.3MB in the end (delta: 117.4MB). Free memory was 59.1MB in the beginning and 142.2MB in the end (delta: -83.1MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2022-02-21 04:18:14,744 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory was 59.3MB in the beginning and 59.3MB in the end (delta: 44.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:14,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.37ms. Allocated memory is still 83.9MB. Free memory was 58.9MB in the beginning and 47.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-21 04:18:14,746 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.75ms. Allocated memory is still 83.9MB. Free memory was 47.0MB in the beginning and 41.2MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:14,746 INFO L158 Benchmark]: Boogie Preprocessor took 68.42ms. Allocated memory was 83.9MB in the beginning and 115.3MB in the end (delta: 31.5MB). Free memory was 41.2MB in the beginning and 91.1MB in the end (delta: -49.8MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:14,747 INFO L158 Benchmark]: RCFGBuilder took 903.35ms. Allocated memory is still 115.3MB. Free memory was 91.1MB in the beginning and 54.3MB in the end (delta: 36.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-02-21 04:18:14,747 INFO L158 Benchmark]: BuchiAutomizer took 7379.26ms. Allocated memory was 115.3MB in the beginning and 201.3MB in the end (delta: 86.0MB). Free memory was 54.3MB in the beginning and 145.3MB in the end (delta: -91.0MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:14,747 INFO L158 Benchmark]: Witness Printer took 49.13ms. Allocated memory is still 201.3MB. Free memory was 145.3MB in the beginning and 142.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:14,749 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 0.21ms. Allocated memory is still 83.9MB. Free memory was 59.3MB in the beginning and 59.3MB in the end (delta: 44.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 506.37ms. Allocated memory is still 83.9MB. Free memory was 58.9MB in the beginning and 47.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.75ms. Allocated memory is still 83.9MB. Free memory was 47.0MB in the beginning and 41.2MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.42ms. Allocated memory was 83.9MB in the beginning and 115.3MB in the end (delta: 31.5MB). Free memory was 41.2MB in the beginning and 91.1MB in the end (delta: -49.8MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * RCFGBuilder took 903.35ms. Allocated memory is still 115.3MB. Free memory was 91.1MB in the beginning and 54.3MB in the end (delta: 36.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 7379.26ms. Allocated memory was 115.3MB in the beginning and 201.3MB in the end (delta: 86.0MB). Free memory was 54.3MB in the beginning and 145.3MB in the end (delta: -91.0MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. * Witness Printer took 49.13ms. Allocated memory is still 201.3MB. Free memory was 145.3MB in the beginning and 142.2MB 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 312 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.3s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.9s. Construction of modules took 0.2s. Büchi inclusion checks took 2.5s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 961 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 312 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2915 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2915 mSDsluCounter, 3111 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1623 mSDsCounter, 110 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 270 IncrementalHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 110 mSolverCounterUnsat, 1488 mSDtfsCounter, 270 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 430]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ba26433=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13dec365=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, tmp___0=0, methaneLevelCritical=0, tmp=0, tmp=1, retValue_acc=1, retValue_acc=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48f98a38=0, retValue_acc=1, \result=1, tmp=1, \result=1, tmp=1, tmp___2=29, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72a89b6f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54077c77=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@653f7b9=0, head=0, retValue_acc=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4036f88=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@dd1ef5a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b86c180=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@624204ba=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7155c43d=29} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 430]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L494] int pumpRunning = 0; [L495] int systemActive = 1; [L766] int waterLevel = 1; [L767] int methaneLevelCritical = 0; [L895] int cleanupTimeShifts = 4; [L968] int retValue_acc ; [L969] int tmp ; [L973] FCALL select_helpers() [L974] FCALL select_features() [L975] CALL, EXPR valid_product() [L747] int retValue_acc ; [L750] retValue_acc = 1 [L751] return (retValue_acc); [L975] RET, EXPR valid_product() [L975] tmp = valid_product() [L977] COND TRUE \read(tmp) [L979] FCALL setup() [L980] CALL runTest() [L962] CALL test() [L421] int splverifierCounter ; [L422] int tmp ; [L423] int tmp___0 ; [L424] int tmp___1 ; [L425] int tmp___2 ; [L428] splverifierCounter = 0 Loop: [L430] COND TRUE 1 [L432] COND TRUE splverifierCounter < 4 [L438] tmp = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp)) [L448] tmp___0 = __VERIFIER_nondet_int() [L450] COND FALSE !(\read(tmp___0)) [L458] tmp___2 = __VERIFIER_nondet_int() [L460] COND TRUE \read(tmp___2) [L473] CALL timeShift() [L502] COND FALSE !(\read(pumpRunning)) [L509] COND TRUE \read(systemActive) [L511] CALL processEnvironment() [L583] int tmp ; [L586] COND FALSE !(\read(pumpRunning)) [L601] CALL processEnvironment__wrappee__lowWaterSensor() [L557] int tmp ; [L560] COND FALSE !(\read(pumpRunning)) [L575] CALL processEnvironment__wrappee__highWaterSensor() [L531] int tmp ; [L534] COND TRUE ! pumpRunning [L536] CALL, EXPR isHighWaterLevel() [L680] int retValue_acc ; [L681] int tmp ; [L682] int tmp___0 ; [L686] CALL, EXPR isHighWaterSensorDry() [L846] int retValue_acc ; [L849] COND TRUE waterLevel < 2 [L850] retValue_acc = 1 [L851] return (retValue_acc); [L686] RET, EXPR isHighWaterSensorDry() [L686] tmp = isHighWaterSensorDry() [L688] COND TRUE \read(tmp) [L689] tmp___0 = 0 [L693] retValue_acc = tmp___0 [L694] return (retValue_acc); [L536] RET, EXPR isHighWaterLevel() [L536] tmp = isHighWaterLevel() [L538] COND FALSE !(\read(tmp)) [L544] FCALL processEnvironment__wrappee__base() [L575] RET processEnvironment__wrappee__highWaterSensor() [L601] RET processEnvironment__wrappee__lowWaterSensor() [L511] RET processEnvironment() [L517] CALL __utac_acc__Specification4_spec__1() [L870] int tmp ; [L871] int tmp___0 ; [L875] CALL, EXPR getWaterLevel() [L837] int retValue_acc ; [L840] retValue_acc = waterLevel [L841] return (retValue_acc); [L875] RET, EXPR getWaterLevel() [L875] tmp = getWaterLevel() [L877] COND FALSE !(tmp == 0) [L517] RET __utac_acc__Specification4_spec__1() [L473] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:14,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)