./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product39.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_spec1_product39.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 1a60868809a0ad0cb359a526a1f66a469756e048a31d4d83c9a3de774ac0575c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:25,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:25,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:25,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:25,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:25,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:25,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:25,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:25,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:25,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:25,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:25,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:25,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:25,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:25,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:25,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:25,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:25,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:25,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:25,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:25,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:25,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:25,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:25,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:25,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:25,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:25,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:25,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:25,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:25,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:25,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:25,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:25,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:25,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:25,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:25,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:25,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:25,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:25,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:25,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:25,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:25,416 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:25,430 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:25,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:25,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:25,431 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:25,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:25,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:25,432 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:25,432 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:25,432 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:25,432 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:25,432 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:25,433 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:25,433 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:25,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:25,433 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:25,433 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:25,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:25,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:25,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:25,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:25,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:25,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:25,434 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:25,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:25,435 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:25,435 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:25,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:25,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:25,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:25,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:25,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:25,437 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:25,437 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a60868809a0ad0cb359a526a1f66a469756e048a31d4d83c9a3de774ac0575c [2022-02-21 04:15:25,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:25,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:25,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:25,687 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:25,688 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:25,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2022-02-21 04:15:25,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15258c24d/3e33a7a39acc4024a8d93770355477fd/FLAGa9b49a045 [2022-02-21 04:15:26,136 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:26,136 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2022-02-21 04:15:26,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15258c24d/3e33a7a39acc4024a8d93770355477fd/FLAGa9b49a045 [2022-02-21 04:15:26,155 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15258c24d/3e33a7a39acc4024a8d93770355477fd [2022-02-21 04:15:26,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:26,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:26,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:26,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:26,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:26,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:26" (1/1) ... [2022-02-21 04:15:26,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4197db14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:26, skipping insertion in model container [2022-02-21 04:15:26,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:26" (1/1) ... [2022-02-21 04:15:26,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:26,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:26,381 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_spec1_product39.cil.c[11731,11744] [2022-02-21 04:15:26,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:26,438 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:26,485 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_spec1_product39.cil.c[11731,11744] [2022-02-21 04:15:26,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:26,519 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:26,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:26 WrapperNode [2022-02-21 04:15:26,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:26,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:26,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:26,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:26,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:26" (1/1) ... [2022-02-21 04:15:26,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:26" (1/1) ... [2022-02-21 04:15:26,592 INFO L137 Inliner]: procedures = 54, calls = 155, calls flagged for inlining = 52, calls inlined = 79, statements flattened = 588 [2022-02-21 04:15:26,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:26,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:26,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:26,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:26,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:26" (1/1) ... [2022-02-21 04:15:26,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:26" (1/1) ... [2022-02-21 04:15:26,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:26" (1/1) ... [2022-02-21 04:15:26,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:26" (1/1) ... [2022-02-21 04:15:26,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:26" (1/1) ... [2022-02-21 04:15:26,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:26" (1/1) ... [2022-02-21 04:15:26,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:26" (1/1) ... [2022-02-21 04:15:26,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:26,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:26,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:26,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:26,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:26" (1/1) ... [2022-02-21 04:15:26,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:26,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:26,683 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 04:15:26,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:15:26,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:26,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:26,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:26,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:26,784 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:26,785 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:27,171 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:27,177 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:27,178 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:27,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:27 BoogieIcfgContainer [2022-02-21 04:15:27,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:27,182 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:27,183 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:27,185 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:27,186 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:27,186 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:26" (1/3) ... [2022-02-21 04:15:27,187 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5aa0ea8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:27, skipping insertion in model container [2022-02-21 04:15:27,187 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:27,187 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:26" (2/3) ... [2022-02-21 04:15:27,188 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5aa0ea8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:27, skipping insertion in model container [2022-02-21 04:15:27,188 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:27,188 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:27" (3/3) ... [2022-02-21 04:15:27,189 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2022-02-21 04:15:27,229 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:27,229 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:27,230 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:27,230 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:27,230 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:27,230 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:27,230 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:27,230 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:27,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 160 states, 159 states have (on average 1.371069182389937) internal successors, (218), 159 states have internal predecessors, (218), 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 04:15:27,288 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2022-02-21 04:15:27,288 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:27,288 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:27,293 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:27,293 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 04:15:27,293 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:27,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 160 states, 159 states have (on average 1.371069182389937) internal successors, (218), 159 states have internal predecessors, (218), 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 04:15:27,311 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2022-02-21 04:15:27,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:27,311 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:27,312 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:27,312 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 04:15:27,315 INFO L791 eck$LassoCheckResult]: Stem: 147#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(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 45#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 144#L845true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 37#L838true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 51#L853true main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 109#L940true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 135#L917true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 78#L567-2true [2022-02-21 04:15:27,317 INFO L793 eck$LassoCheckResult]: Loop: 78#L567-2true assume !false; 162#L568true assume test_~splverifierCounter~0#1 < 4; 40#L569true test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 76#L577true assume !(0 != test_~tmp~4#1); 39#L577-2true test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 154#L587true assume !(0 != test_~tmp___0~1#1); 71#L587-2true test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 137#L597true assume 0 != test_~tmp___2~0#1; 4#L603-2true assume { :begin_inline_timeShift } true; 117#L634true assume !(0 != ~pumpRunning~0); 121#L634-2true assume !(0 != ~systemActive~0); 104#L641-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~3#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~3#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 73#L503-1true __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; 111#L427true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3#1); 75#L427-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 141#L651true assume { :end_inline_timeShift } true; 78#L567-2true [2022-02-21 04:15:27,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:27,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:27,327 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:27,327 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143592109] [2022-02-21 04:15:27,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:27,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:27,445 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:27,475 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:27,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:27,482 INFO L85 PathProgramCache]: Analyzing trace with hash 169805764, now seen corresponding path program 1 times [2022-02-21 04:15:27,482 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:27,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470672901] [2022-02-21 04:15:27,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:27,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:27,513 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:27,518 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:27,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:27,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1525224840, now seen corresponding path program 1 times [2022-02-21 04:15:27,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:27,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826065591] [2022-02-21 04:15:27,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:27,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:27,663 INFO L290 TraceCheckUtils]: 0: Hoare triple {168#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(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; {170#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:27,664 INFO L290 TraceCheckUtils]: 1: Hoare triple {170#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; {170#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:27,664 INFO L290 TraceCheckUtils]: 2: Hoare triple {170#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {170#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:27,665 INFO L290 TraceCheckUtils]: 3: Hoare triple {170#(= 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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; {171#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:15:27,665 INFO L290 TraceCheckUtils]: 4: Hoare triple {171#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; {172#(= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0)} is VALID [2022-02-21 04:15:27,665 INFO L290 TraceCheckUtils]: 5: Hoare triple {172#(= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0)} assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:27,666 INFO L290 TraceCheckUtils]: 6: Hoare triple {173#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:27,666 INFO L290 TraceCheckUtils]: 7: Hoare triple {173#(not (= 0 ~systemActive~0))} assume !false; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:27,667 INFO L290 TraceCheckUtils]: 8: Hoare triple {173#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:27,667 INFO L290 TraceCheckUtils]: 9: Hoare triple {173#(not (= 0 ~systemActive~0))} test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:27,668 INFO L290 TraceCheckUtils]: 10: Hoare triple {173#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~4#1); {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:27,668 INFO L290 TraceCheckUtils]: 11: Hoare triple {173#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:27,668 INFO L290 TraceCheckUtils]: 12: Hoare triple {173#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:27,669 INFO L290 TraceCheckUtils]: 13: Hoare triple {173#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:27,669 INFO L290 TraceCheckUtils]: 14: Hoare triple {173#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:27,670 INFO L290 TraceCheckUtils]: 15: Hoare triple {173#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:27,670 INFO L290 TraceCheckUtils]: 16: Hoare triple {173#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:27,670 INFO L290 TraceCheckUtils]: 17: Hoare triple {173#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {169#false} is VALID [2022-02-21 04:15:27,670 INFO L290 TraceCheckUtils]: 18: Hoare triple {169#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~3#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~3#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {169#false} is VALID [2022-02-21 04:15:27,671 INFO L290 TraceCheckUtils]: 19: Hoare triple {169#false} __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; {169#false} is VALID [2022-02-21 04:15:27,682 INFO L290 TraceCheckUtils]: 20: Hoare triple {169#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3#1); {169#false} is VALID [2022-02-21 04:15:27,682 INFO L290 TraceCheckUtils]: 21: Hoare triple {169#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {169#false} is VALID [2022-02-21 04:15:27,682 INFO L290 TraceCheckUtils]: 22: Hoare triple {169#false} assume { :end_inline_timeShift } true; {169#false} is VALID [2022-02-21 04:15:27,684 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 04:15:27,684 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:27,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826065591] [2022-02-21 04:15:27,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826065591] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:27,685 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:27,685 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:27,686 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338406005] [2022-02-21 04:15:27,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:27,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:27,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:15:27,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:15:27,821 INFO L87 Difference]: Start difference. First operand has 160 states, 159 states have (on average 1.371069182389937) internal successors, (218), 159 states have internal predecessors, (218), 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 04:15:28,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:28,631 INFO L93 Difference]: Finished difference Result 371 states and 485 transitions. [2022-02-21 04:15:28,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:15:28,632 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 04:15:28,653 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 04:15:28,657 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 371 states and 485 transitions. [2022-02-21 04:15:28,668 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 239 [2022-02-21 04:15:28,697 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 371 states to 341 states and 455 transitions. [2022-02-21 04:15:28,698 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 341 [2022-02-21 04:15:28,698 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 341 [2022-02-21 04:15:28,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 341 states and 455 transitions. [2022-02-21 04:15:28,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:28,700 INFO L681 BuchiCegarLoop]: Abstraction has 341 states and 455 transitions. [2022-02-21 04:15:28,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states and 455 transitions. [2022-02-21 04:15:28,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 199. [2022-02-21 04:15:28,738 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:28,744 INFO L82 GeneralOperation]: Start isEquivalent. First operand 341 states and 455 transitions. Second operand has 199 states, 199 states have (on average 1.3316582914572865) internal successors, (265), 198 states have internal predecessors, (265), 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 04:15:28,745 INFO L74 IsIncluded]: Start isIncluded. First operand 341 states and 455 transitions. Second operand has 199 states, 199 states have (on average 1.3316582914572865) internal successors, (265), 198 states have internal predecessors, (265), 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 04:15:28,746 INFO L87 Difference]: Start difference. First operand 341 states and 455 transitions. Second operand has 199 states, 199 states have (on average 1.3316582914572865) internal successors, (265), 198 states have internal predecessors, (265), 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 04:15:28,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:28,759 INFO L93 Difference]: Finished difference Result 341 states and 455 transitions. [2022-02-21 04:15:28,759 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 455 transitions. [2022-02-21 04:15:28,761 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:28,761 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:28,762 INFO L74 IsIncluded]: Start isIncluded. First operand has 199 states, 199 states have (on average 1.3316582914572865) internal successors, (265), 198 states have internal predecessors, (265), 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 341 states and 455 transitions. [2022-02-21 04:15:28,762 INFO L87 Difference]: Start difference. First operand has 199 states, 199 states have (on average 1.3316582914572865) internal successors, (265), 198 states have internal predecessors, (265), 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 341 states and 455 transitions. [2022-02-21 04:15:28,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:28,769 INFO L93 Difference]: Finished difference Result 341 states and 455 transitions. [2022-02-21 04:15:28,769 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 455 transitions. [2022-02-21 04:15:28,771 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:28,771 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:28,771 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:28,771 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:28,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 199 states have (on average 1.3316582914572865) internal successors, (265), 198 states have internal predecessors, (265), 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 04:15:28,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 265 transitions. [2022-02-21 04:15:28,776 INFO L704 BuchiCegarLoop]: Abstraction has 199 states and 265 transitions. [2022-02-21 04:15:28,776 INFO L587 BuchiCegarLoop]: Abstraction has 199 states and 265 transitions. [2022-02-21 04:15:28,776 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:28,776 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 199 states and 265 transitions. [2022-02-21 04:15:28,777 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2022-02-21 04:15:28,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:28,777 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:28,777 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:28,777 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:28,778 INFO L791 eck$LassoCheckResult]: Stem: 695#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(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 616#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 617#L845 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 602#L838 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 603#L853 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 623#L940 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 682#L917 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 656#L567-2 [2022-02-21 04:15:28,778 INFO L793 eck$LassoCheckResult]: Loop: 656#L567-2 assume !false; 657#L568 assume test_~splverifierCounter~0#1 < 4; 608#L569 test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 609#L577 assume !(0 != test_~tmp~4#1); 583#L577-2 test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 607#L587 assume !(0 != test_~tmp___0~1#1); 564#L587-2 test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 648#L597 assume 0 != test_~tmp___2~0#1; 551#L603-2 assume { :begin_inline_timeShift } true; 552#L634 assume !(0 != ~pumpRunning~0); 680#L634-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 610#L692 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 612#L666-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 672#L658-3 assume { :end_inline_processEnvironment__wrappee__base } true; 677#L666-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 624#L692-1 assume { :end_inline_processEnvironment } true; 625#L641-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~3#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~3#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 650#L503-1 __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; 651#L427 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3#1); 653#L427-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 654#L651 assume { :end_inline_timeShift } true; 656#L567-2 [2022-02-21 04:15:28,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:28,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:28,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:28,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416205113] [2022-02-21 04:15:28,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:28,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:28,790 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:28,800 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:28,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:28,800 INFO L85 PathProgramCache]: Analyzing trace with hash -94485714, now seen corresponding path program 1 times [2022-02-21 04:15:28,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:28,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929574636] [2022-02-21 04:15:28,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:28,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:28,812 INFO L290 TraceCheckUtils]: 0: Hoare triple {1435#true} assume !false; {1435#true} is VALID [2022-02-21 04:15:28,813 INFO L290 TraceCheckUtils]: 1: Hoare triple {1435#true} assume test_~splverifierCounter~0#1 < 4; {1435#true} is VALID [2022-02-21 04:15:28,813 INFO L290 TraceCheckUtils]: 2: Hoare triple {1435#true} test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {1435#true} is VALID [2022-02-21 04:15:28,813 INFO L290 TraceCheckUtils]: 3: Hoare triple {1435#true} assume !(0 != test_~tmp~4#1); {1435#true} is VALID [2022-02-21 04:15:28,813 INFO L290 TraceCheckUtils]: 4: Hoare triple {1435#true} test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {1435#true} is VALID [2022-02-21 04:15:28,813 INFO L290 TraceCheckUtils]: 5: Hoare triple {1435#true} assume !(0 != test_~tmp___0~1#1); {1435#true} is VALID [2022-02-21 04:15:28,813 INFO L290 TraceCheckUtils]: 6: Hoare triple {1435#true} test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; {1435#true} is VALID [2022-02-21 04:15:28,813 INFO L290 TraceCheckUtils]: 7: Hoare triple {1435#true} assume 0 != test_~tmp___2~0#1; {1435#true} is VALID [2022-02-21 04:15:28,813 INFO L290 TraceCheckUtils]: 8: Hoare triple {1435#true} assume { :begin_inline_timeShift } true; {1435#true} is VALID [2022-02-21 04:15:28,814 INFO L290 TraceCheckUtils]: 9: Hoare triple {1435#true} assume !(0 != ~pumpRunning~0); {1437#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:28,814 INFO L290 TraceCheckUtils]: 10: Hoare triple {1437#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {1437#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:28,814 INFO L290 TraceCheckUtils]: 11: Hoare triple {1437#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; {1437#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:28,815 INFO L290 TraceCheckUtils]: 12: Hoare triple {1437#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1436#false} is VALID [2022-02-21 04:15:28,815 INFO L290 TraceCheckUtils]: 13: Hoare triple {1436#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1436#false} is VALID [2022-02-21 04:15:28,815 INFO L290 TraceCheckUtils]: 14: Hoare triple {1436#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1436#false} is VALID [2022-02-21 04:15:28,815 INFO L290 TraceCheckUtils]: 15: Hoare triple {1436#false} assume { :end_inline_processEnvironment } true; {1436#false} is VALID [2022-02-21 04:15:28,815 INFO L290 TraceCheckUtils]: 16: Hoare triple {1436#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~3#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~3#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {1436#false} is VALID [2022-02-21 04:15:28,815 INFO L290 TraceCheckUtils]: 17: Hoare triple {1436#false} __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; {1436#false} is VALID [2022-02-21 04:15:28,815 INFO L290 TraceCheckUtils]: 18: Hoare triple {1436#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3#1); {1436#false} is VALID [2022-02-21 04:15:28,815 INFO L290 TraceCheckUtils]: 19: Hoare triple {1436#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {1436#false} is VALID [2022-02-21 04:15:28,816 INFO L290 TraceCheckUtils]: 20: Hoare triple {1436#false} assume { :end_inline_timeShift } true; {1436#false} is VALID [2022-02-21 04:15:28,816 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 04:15:28,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:28,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929574636] [2022-02-21 04:15:28,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929574636] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:28,816 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:28,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:28,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862213805] [2022-02-21 04:15:28,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:28,817 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:28,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:28,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:28,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:28,817 INFO L87 Difference]: Start difference. First operand 199 states and 265 transitions. cyclomatic complexity: 69 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:28,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:28,990 INFO L93 Difference]: Finished difference Result 249 states and 316 transitions. [2022-02-21 04:15:28,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:28,991 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:29,002 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:29,003 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 249 states and 316 transitions. [2022-02-21 04:15:29,009 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2022-02-21 04:15:29,014 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 249 states to 249 states and 316 transitions. [2022-02-21 04:15:29,014 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 249 [2022-02-21 04:15:29,015 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 249 [2022-02-21 04:15:29,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 249 states and 316 transitions. [2022-02-21 04:15:29,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:29,018 INFO L681 BuchiCegarLoop]: Abstraction has 249 states and 316 transitions. [2022-02-21 04:15:29,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states and 316 transitions. [2022-02-21 04:15:29,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2022-02-21 04:15:29,032 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:29,033 INFO L82 GeneralOperation]: Start isEquivalent. First operand 249 states and 316 transitions. Second operand has 249 states, 249 states have (on average 1.2690763052208835) internal successors, (316), 248 states have internal predecessors, (316), 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 04:15:29,034 INFO L74 IsIncluded]: Start isIncluded. First operand 249 states and 316 transitions. Second operand has 249 states, 249 states have (on average 1.2690763052208835) internal successors, (316), 248 states have internal predecessors, (316), 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 04:15:29,034 INFO L87 Difference]: Start difference. First operand 249 states and 316 transitions. Second operand has 249 states, 249 states have (on average 1.2690763052208835) internal successors, (316), 248 states have internal predecessors, (316), 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 04:15:29,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:29,038 INFO L93 Difference]: Finished difference Result 249 states and 316 transitions. [2022-02-21 04:15:29,038 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 316 transitions. [2022-02-21 04:15:29,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:29,039 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:29,040 INFO L74 IsIncluded]: Start isIncluded. First operand has 249 states, 249 states have (on average 1.2690763052208835) internal successors, (316), 248 states have internal predecessors, (316), 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 249 states and 316 transitions. [2022-02-21 04:15:29,040 INFO L87 Difference]: Start difference. First operand has 249 states, 249 states have (on average 1.2690763052208835) internal successors, (316), 248 states have internal predecessors, (316), 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 249 states and 316 transitions. [2022-02-21 04:15:29,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:29,044 INFO L93 Difference]: Finished difference Result 249 states and 316 transitions. [2022-02-21 04:15:29,045 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 316 transitions. [2022-02-21 04:15:29,045 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:29,045 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:29,045 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:29,045 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:29,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 249 states have (on average 1.2690763052208835) internal successors, (316), 248 states have internal predecessors, (316), 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 04:15:29,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 316 transitions. [2022-02-21 04:15:29,050 INFO L704 BuchiCegarLoop]: Abstraction has 249 states and 316 transitions. [2022-02-21 04:15:29,050 INFO L587 BuchiCegarLoop]: Abstraction has 249 states and 316 transitions. [2022-02-21 04:15:29,050 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:15:29,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 249 states and 316 transitions. [2022-02-21 04:15:29,052 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2022-02-21 04:15:29,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:29,054 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:29,055 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:29,055 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:29,056 INFO L791 eck$LassoCheckResult]: Stem: 1845#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(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1756#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 1757#L845 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1744#L838 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 1745#L853 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 1763#L940 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 1824#L917 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1838#L567-2 [2022-02-21 04:15:29,056 INFO L793 eck$LassoCheckResult]: Loop: 1838#L567-2 assume !false; 1918#L568 assume test_~splverifierCounter~0#1 < 4; 1919#L569 test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 1934#L577 assume !(0 != test_~tmp~4#1); 1932#L577-2 test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 1930#L587 assume !(0 != test_~tmp___0~1#1); 1928#L587-2 test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 1839#L597 assume 0 != test_~tmp___2~0#1; 1841#L603-2 assume { :begin_inline_timeShift } true; 1926#L634 assume !(0 != ~pumpRunning~0); 1831#L634-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1752#L692 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 1753#L666-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 1816#L543-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~5#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 1828#L548-1 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 1703#L794-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1704#L794-5 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 1786#L800-1 processEnvironment__wrappee__highWaterSensor_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret38#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1; 1776#L670-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1777#L658-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1817#L666-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1764#L692-1 assume { :end_inline_processEnvironment } true; 1765#L641-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~3#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~3#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1925#L503-1 __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; 1924#L427 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3#1); 1923#L427-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1922#L651 assume { :end_inline_timeShift } true; 1838#L567-2 [2022-02-21 04:15:29,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:29,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:15:29,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:29,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796620332] [2022-02-21 04:15:29,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:29,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:29,082 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:29,091 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:29,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:29,098 INFO L85 PathProgramCache]: Analyzing trace with hash 969585700, now seen corresponding path program 1 times [2022-02-21 04:15:29,098 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:29,098 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652383207] [2022-02-21 04:15:29,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:29,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:29,137 INFO L290 TraceCheckUtils]: 0: Hoare triple {2439#true} assume !false; {2439#true} is VALID [2022-02-21 04:15:29,138 INFO L290 TraceCheckUtils]: 1: Hoare triple {2439#true} assume test_~splverifierCounter~0#1 < 4; {2439#true} is VALID [2022-02-21 04:15:29,138 INFO L290 TraceCheckUtils]: 2: Hoare triple {2439#true} test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {2439#true} is VALID [2022-02-21 04:15:29,138 INFO L290 TraceCheckUtils]: 3: Hoare triple {2439#true} assume !(0 != test_~tmp~4#1); {2439#true} is VALID [2022-02-21 04:15:29,138 INFO L290 TraceCheckUtils]: 4: Hoare triple {2439#true} test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {2439#true} is VALID [2022-02-21 04:15:29,138 INFO L290 TraceCheckUtils]: 5: Hoare triple {2439#true} assume !(0 != test_~tmp___0~1#1); {2439#true} is VALID [2022-02-21 04:15:29,146 INFO L290 TraceCheckUtils]: 6: Hoare triple {2439#true} test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; {2439#true} is VALID [2022-02-21 04:15:29,146 INFO L290 TraceCheckUtils]: 7: Hoare triple {2439#true} assume 0 != test_~tmp___2~0#1; {2439#true} is VALID [2022-02-21 04:15:29,146 INFO L290 TraceCheckUtils]: 8: Hoare triple {2439#true} assume { :begin_inline_timeShift } true; {2439#true} is VALID [2022-02-21 04:15:29,146 INFO L290 TraceCheckUtils]: 9: Hoare triple {2439#true} assume !(0 != ~pumpRunning~0); {2439#true} is VALID [2022-02-21 04:15:29,146 INFO L290 TraceCheckUtils]: 10: Hoare triple {2439#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {2439#true} is VALID [2022-02-21 04:15:29,147 INFO L290 TraceCheckUtils]: 11: Hoare triple {2439#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; {2439#true} is VALID [2022-02-21 04:15:29,147 INFO L290 TraceCheckUtils]: 12: Hoare triple {2439#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; {2439#true} is VALID [2022-02-21 04:15:29,148 INFO L290 TraceCheckUtils]: 13: Hoare triple {2439#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~5#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; {2441#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} is VALID [2022-02-21 04:15:29,148 INFO L290 TraceCheckUtils]: 14: Hoare triple {2441#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; {2442#(= |ULTIMATE.start_isHighWaterLevel_~tmp~7#1| 0)} is VALID [2022-02-21 04:15:29,148 INFO L290 TraceCheckUtils]: 15: Hoare triple {2442#(= |ULTIMATE.start_isHighWaterLevel_~tmp~7#1| 0)} assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~2#1 := 0; {2440#false} is VALID [2022-02-21 04:15:29,148 INFO L290 TraceCheckUtils]: 16: Hoare triple {2440#false} isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; {2440#false} is VALID [2022-02-21 04:15:29,149 INFO L290 TraceCheckUtils]: 17: Hoare triple {2440#false} processEnvironment__wrappee__highWaterSensor_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret38#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1; {2440#false} is VALID [2022-02-21 04:15:29,149 INFO L290 TraceCheckUtils]: 18: Hoare triple {2440#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2440#false} is VALID [2022-02-21 04:15:29,149 INFO L290 TraceCheckUtils]: 19: Hoare triple {2440#false} assume { :end_inline_processEnvironment__wrappee__base } true; {2440#false} is VALID [2022-02-21 04:15:29,149 INFO L290 TraceCheckUtils]: 20: Hoare triple {2440#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {2440#false} is VALID [2022-02-21 04:15:29,149 INFO L290 TraceCheckUtils]: 21: Hoare triple {2440#false} assume { :end_inline_processEnvironment } true; {2440#false} is VALID [2022-02-21 04:15:29,149 INFO L290 TraceCheckUtils]: 22: Hoare triple {2440#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~3#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~3#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {2440#false} is VALID [2022-02-21 04:15:29,150 INFO L290 TraceCheckUtils]: 23: Hoare triple {2440#false} __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; {2440#false} is VALID [2022-02-21 04:15:29,151 INFO L290 TraceCheckUtils]: 24: Hoare triple {2440#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3#1); {2440#false} is VALID [2022-02-21 04:15:29,151 INFO L290 TraceCheckUtils]: 25: Hoare triple {2440#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {2440#false} is VALID [2022-02-21 04:15:29,151 INFO L290 TraceCheckUtils]: 26: Hoare triple {2440#false} assume { :end_inline_timeShift } true; {2440#false} is VALID [2022-02-21 04:15:29,151 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 04:15:29,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:29,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652383207] [2022-02-21 04:15:29,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652383207] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:29,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:29,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:15:29,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95558028] [2022-02-21 04:15:29,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:29,154 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:29,154 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:29,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 04:15:29,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 04:15:29,155 INFO L87 Difference]: Start difference. First operand 249 states and 316 transitions. cyclomatic complexity: 70 Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 04:15:29,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:29,588 INFO L93 Difference]: Finished difference Result 709 states and 886 transitions. [2022-02-21 04:15:29,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:15:29,588 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 04:15:29,609 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:29,610 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 709 states and 886 transitions. [2022-02-21 04:15:29,633 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 521 [2022-02-21 04:15:29,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 709 states to 709 states and 886 transitions. [2022-02-21 04:15:29,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 709 [2022-02-21 04:15:29,649 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 709 [2022-02-21 04:15:29,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 709 states and 886 transitions. [2022-02-21 04:15:29,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:29,649 INFO L681 BuchiCegarLoop]: Abstraction has 709 states and 886 transitions. [2022-02-21 04:15:29,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states and 886 transitions. [2022-02-21 04:15:29,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 261. [2022-02-21 04:15:29,653 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:29,653 INFO L82 GeneralOperation]: Start isEquivalent. First operand 709 states and 886 transitions. Second operand has 261 states, 261 states have (on average 1.2567049808429118) internal successors, (328), 260 states have internal predecessors, (328), 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 04:15:29,654 INFO L74 IsIncluded]: Start isIncluded. First operand 709 states and 886 transitions. Second operand has 261 states, 261 states have (on average 1.2567049808429118) internal successors, (328), 260 states have internal predecessors, (328), 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 04:15:29,654 INFO L87 Difference]: Start difference. First operand 709 states and 886 transitions. Second operand has 261 states, 261 states have (on average 1.2567049808429118) internal successors, (328), 260 states have internal predecessors, (328), 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 04:15:29,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:29,668 INFO L93 Difference]: Finished difference Result 709 states and 886 transitions. [2022-02-21 04:15:29,668 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 886 transitions. [2022-02-21 04:15:29,669 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:29,669 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:29,669 INFO L74 IsIncluded]: Start isIncluded. First operand has 261 states, 261 states have (on average 1.2567049808429118) internal successors, (328), 260 states have internal predecessors, (328), 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 709 states and 886 transitions. [2022-02-21 04:15:29,670 INFO L87 Difference]: Start difference. First operand has 261 states, 261 states have (on average 1.2567049808429118) internal successors, (328), 260 states have internal predecessors, (328), 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 709 states and 886 transitions. [2022-02-21 04:15:29,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:29,684 INFO L93 Difference]: Finished difference Result 709 states and 886 transitions. [2022-02-21 04:15:29,684 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 886 transitions. [2022-02-21 04:15:29,684 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:29,684 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:29,685 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:29,685 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:29,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 261 states have (on average 1.2567049808429118) internal successors, (328), 260 states have internal predecessors, (328), 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 04:15:29,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 328 transitions. [2022-02-21 04:15:29,688 INFO L704 BuchiCegarLoop]: Abstraction has 261 states and 328 transitions. [2022-02-21 04:15:29,688 INFO L587 BuchiCegarLoop]: Abstraction has 261 states and 328 transitions. [2022-02-21 04:15:29,688 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:15:29,688 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 261 states and 328 transitions. [2022-02-21 04:15:29,689 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 187 [2022-02-21 04:15:29,689 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:29,689 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:29,690 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:29,690 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:29,690 INFO L791 eck$LassoCheckResult]: Stem: 3326#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(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 3226#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 3227#L845 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3214#L838 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 3215#L853 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 3234#L940 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 3302#L917 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3273#L567-2 [2022-02-21 04:15:29,690 INFO L793 eck$LassoCheckResult]: Loop: 3273#L567-2 assume !false; 3274#L568 assume test_~splverifierCounter~0#1 < 4; 3333#L569 test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 3270#L577 assume !(0 != test_~tmp~4#1); 3190#L577-2 test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 3219#L587 assume !(0 != test_~tmp___0~1#1); 3170#L587-2 test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 3263#L597 assume 0 != test_~tmp___2~0#1; 3157#L603-2 assume { :begin_inline_timeShift } true; 3158#L634 assume !(0 != ~pumpRunning~0); 3310#L634-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 3222#L692 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 3223#L666-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 3292#L543-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~5#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 3307#L548-1 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 3171#L794-3 assume !(0 != isHighWaterLevel_~tmp~7#1);isHighWaterLevel_~tmp___0~2#1 := 1; 3172#L794-5 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 3259#L800-1 processEnvironment__wrappee__highWaterSensor_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret38#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1; 3249#L670-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3250#L658-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3295#L666-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3235#L692-1 assume { :end_inline_processEnvironment } true; 3236#L641-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~3#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~3#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 3404#L503-1 __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; 3304#L427 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3#1); 3268#L427-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 3269#L651 assume { :end_inline_timeShift } true; 3273#L567-2 [2022-02-21 04:15:29,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:29,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:15:29,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:29,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128605312] [2022-02-21 04:15:29,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:29,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:29,697 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:29,703 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:29,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:29,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1227751138, now seen corresponding path program 1 times [2022-02-21 04:15:29,704 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:29,704 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775706882] [2022-02-21 04:15:29,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:29,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:29,729 INFO L290 TraceCheckUtils]: 0: Hoare triple {4839#true} assume !false; {4839#true} is VALID [2022-02-21 04:15:29,729 INFO L290 TraceCheckUtils]: 1: Hoare triple {4839#true} assume test_~splverifierCounter~0#1 < 4; {4839#true} is VALID [2022-02-21 04:15:29,729 INFO L290 TraceCheckUtils]: 2: Hoare triple {4839#true} test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {4839#true} is VALID [2022-02-21 04:15:29,729 INFO L290 TraceCheckUtils]: 3: Hoare triple {4839#true} assume !(0 != test_~tmp~4#1); {4839#true} is VALID [2022-02-21 04:15:29,730 INFO L290 TraceCheckUtils]: 4: Hoare triple {4839#true} test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {4839#true} is VALID [2022-02-21 04:15:29,730 INFO L290 TraceCheckUtils]: 5: Hoare triple {4839#true} assume !(0 != test_~tmp___0~1#1); {4839#true} is VALID [2022-02-21 04:15:29,730 INFO L290 TraceCheckUtils]: 6: Hoare triple {4839#true} test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; {4839#true} is VALID [2022-02-21 04:15:29,730 INFO L290 TraceCheckUtils]: 7: Hoare triple {4839#true} assume 0 != test_~tmp___2~0#1; {4839#true} is VALID [2022-02-21 04:15:29,730 INFO L290 TraceCheckUtils]: 8: Hoare triple {4839#true} assume { :begin_inline_timeShift } true; {4839#true} is VALID [2022-02-21 04:15:29,730 INFO L290 TraceCheckUtils]: 9: Hoare triple {4839#true} assume !(0 != ~pumpRunning~0); {4839#true} is VALID [2022-02-21 04:15:29,730 INFO L290 TraceCheckUtils]: 10: Hoare triple {4839#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {4839#true} is VALID [2022-02-21 04:15:29,730 INFO L290 TraceCheckUtils]: 11: Hoare triple {4839#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; {4839#true} is VALID [2022-02-21 04:15:29,730 INFO L290 TraceCheckUtils]: 12: Hoare triple {4839#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; {4839#true} is VALID [2022-02-21 04:15:29,730 INFO L290 TraceCheckUtils]: 13: Hoare triple {4839#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~5#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; {4839#true} is VALID [2022-02-21 04:15:29,730 INFO L290 TraceCheckUtils]: 14: Hoare triple {4839#true} isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; {4839#true} is VALID [2022-02-21 04:15:29,732 INFO L290 TraceCheckUtils]: 15: Hoare triple {4839#true} assume !(0 != isHighWaterLevel_~tmp~7#1);isHighWaterLevel_~tmp___0~2#1 := 1; {4841#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~2#1|)} is VALID [2022-02-21 04:15:29,732 INFO L290 TraceCheckUtils]: 16: Hoare triple {4841#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~2#1|)} isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; {4842#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} is VALID [2022-02-21 04:15:29,734 INFO L290 TraceCheckUtils]: 17: Hoare triple {4842#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} processEnvironment__wrappee__highWaterSensor_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret38#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1; {4843#(<= 1 |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5#1|)} is VALID [2022-02-21 04:15:29,734 INFO L290 TraceCheckUtils]: 18: Hoare triple {4843#(<= 1 |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5#1|)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {4840#false} is VALID [2022-02-21 04:15:29,734 INFO L290 TraceCheckUtils]: 19: Hoare triple {4840#false} assume { :end_inline_processEnvironment__wrappee__base } true; {4840#false} is VALID [2022-02-21 04:15:29,734 INFO L290 TraceCheckUtils]: 20: Hoare triple {4840#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {4840#false} is VALID [2022-02-21 04:15:29,734 INFO L290 TraceCheckUtils]: 21: Hoare triple {4840#false} assume { :end_inline_processEnvironment } true; {4840#false} is VALID [2022-02-21 04:15:29,734 INFO L290 TraceCheckUtils]: 22: Hoare triple {4840#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~3#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~3#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {4840#false} is VALID [2022-02-21 04:15:29,734 INFO L290 TraceCheckUtils]: 23: Hoare triple {4840#false} __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; {4840#false} is VALID [2022-02-21 04:15:29,734 INFO L290 TraceCheckUtils]: 24: Hoare triple {4840#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3#1); {4840#false} is VALID [2022-02-21 04:15:29,735 INFO L290 TraceCheckUtils]: 25: Hoare triple {4840#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {4840#false} is VALID [2022-02-21 04:15:29,735 INFO L290 TraceCheckUtils]: 26: Hoare triple {4840#false} assume { :end_inline_timeShift } true; {4840#false} is VALID [2022-02-21 04:15:29,735 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 04:15:29,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:29,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775706882] [2022-02-21 04:15:29,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775706882] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:29,735 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:29,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:29,735 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760222334] [2022-02-21 04:15:29,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:29,736 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:29,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:29,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:15:29,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:15:29,736 INFO L87 Difference]: Start difference. First operand 261 states and 328 transitions. cyclomatic complexity: 70 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 04:15:30,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:30,283 INFO L93 Difference]: Finished difference Result 649 states and 811 transitions. [2022-02-21 04:15:30,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:15:30,283 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 04:15:30,302 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:30,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 649 states and 811 transitions. [2022-02-21 04:15:30,316 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 481 [2022-02-21 04:15:30,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 649 states to 649 states and 811 transitions. [2022-02-21 04:15:30,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 649 [2022-02-21 04:15:30,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 649 [2022-02-21 04:15:30,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 649 states and 811 transitions. [2022-02-21 04:15:30,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:30,329 INFO L681 BuchiCegarLoop]: Abstraction has 649 states and 811 transitions. [2022-02-21 04:15:30,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states and 811 transitions. [2022-02-21 04:15:30,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 279. [2022-02-21 04:15:30,333 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:30,334 INFO L82 GeneralOperation]: Start isEquivalent. First operand 649 states and 811 transitions. Second operand has 279 states, 279 states have (on average 1.2401433691756272) internal successors, (346), 278 states have internal predecessors, (346), 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 04:15:30,334 INFO L74 IsIncluded]: Start isIncluded. First operand 649 states and 811 transitions. Second operand has 279 states, 279 states have (on average 1.2401433691756272) internal successors, (346), 278 states have internal predecessors, (346), 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 04:15:30,335 INFO L87 Difference]: Start difference. First operand 649 states and 811 transitions. Second operand has 279 states, 279 states have (on average 1.2401433691756272) internal successors, (346), 278 states have internal predecessors, (346), 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 04:15:30,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:30,346 INFO L93 Difference]: Finished difference Result 649 states and 811 transitions. [2022-02-21 04:15:30,346 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 811 transitions. [2022-02-21 04:15:30,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:30,347 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:30,348 INFO L74 IsIncluded]: Start isIncluded. First operand has 279 states, 279 states have (on average 1.2401433691756272) internal successors, (346), 278 states have internal predecessors, (346), 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 649 states and 811 transitions. [2022-02-21 04:15:30,348 INFO L87 Difference]: Start difference. First operand has 279 states, 279 states have (on average 1.2401433691756272) internal successors, (346), 278 states have internal predecessors, (346), 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 649 states and 811 transitions. [2022-02-21 04:15:30,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:30,361 INFO L93 Difference]: Finished difference Result 649 states and 811 transitions. [2022-02-21 04:15:30,361 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 811 transitions. [2022-02-21 04:15:30,361 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:30,362 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:30,362 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:30,362 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:30,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 279 states have (on average 1.2401433691756272) internal successors, (346), 278 states have internal predecessors, (346), 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 04:15:30,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 346 transitions. [2022-02-21 04:15:30,365 INFO L704 BuchiCegarLoop]: Abstraction has 279 states and 346 transitions. [2022-02-21 04:15:30,366 INFO L587 BuchiCegarLoop]: Abstraction has 279 states and 346 transitions. [2022-02-21 04:15:30,366 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:15:30,366 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 346 transitions. [2022-02-21 04:15:30,366 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 199 [2022-02-21 04:15:30,367 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:30,367 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:30,367 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:30,367 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:30,367 INFO L791 eck$LassoCheckResult]: Stem: 5666#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(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 5567#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 5568#L845 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5555#L838 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 5556#L853 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 5575#L940 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 5642#L917 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5658#L567-2 [2022-02-21 04:15:30,367 INFO L793 eck$LassoCheckResult]: Loop: 5658#L567-2 assume !false; 5749#L568 assume test_~splverifierCounter~0#1 < 4; 5560#L569 test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 5561#L577 assume !(0 != test_~tmp~4#1); 5534#L577-2 test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 5559#L587 assume !(0 != test_~tmp___0~1#1); 5514#L587-2 test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 5603#L597 assume 0 != test_~tmp___2~0#1; 5499#L603-2 assume { :begin_inline_timeShift } true; 5500#L634 assume !(0 != ~pumpRunning~0); 5648#L634-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 5562#L692 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 5563#L666-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 5632#L543-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 5647#L548-1 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 5696#L794-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~2#1 := 0; 5694#L794-5 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 5690#L800-1 processEnvironment__wrappee__highWaterSensor_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret38#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1; 5684#L670-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5657#L658-2 assume { :end_inline_processEnvironment__wrappee__base } true; 5636#L666-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5576#L692-1 assume { :end_inline_processEnvironment } true; 5577#L641-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~3#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~3#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 5753#L503-1 __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; 5643#L427 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3#1); 5608#L427-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 5609#L651 assume { :end_inline_timeShift } true; 5658#L567-2 [2022-02-21 04:15:30,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:30,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-02-21 04:15:30,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:30,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455193062] [2022-02-21 04:15:30,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:30,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:30,374 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:30,389 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:30,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:30,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1980702950, now seen corresponding path program 1 times [2022-02-21 04:15:30,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:30,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243412368] [2022-02-21 04:15:30,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:30,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:30,394 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:30,398 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:30,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:30,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1938976606, now seen corresponding path program 1 times [2022-02-21 04:15:30,399 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:30,399 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035755583] [2022-02-21 04:15:30,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:30,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:30,408 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:30,416 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:32,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:32 BoogieIcfgContainer [2022-02-21 04:15:32,908 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:32,908 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:32,908 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:32,908 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:32,909 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:27" (3/4) ... [2022-02-21 04:15:32,910 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:32,941 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:32,941 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:32,942 INFO L158 Benchmark]: Toolchain (without parser) took 6782.66ms. Allocated memory was 94.4MB in the beginning and 163.6MB in the end (delta: 69.2MB). Free memory was 56.3MB in the beginning and 124.3MB in the end (delta: -68.1MB). Peak memory consumption was 193.8kB. Max. memory is 16.1GB. [2022-02-21 04:15:32,942 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 94.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:32,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.17ms. Allocated memory is still 94.4MB. Free memory was 56.0MB in the beginning and 59.6MB in the end (delta: -3.6MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:32,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.93ms. Allocated memory is still 94.4MB. Free memory was 59.6MB in the beginning and 55.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:32,943 INFO L158 Benchmark]: Boogie Preprocessor took 56.11ms. Allocated memory is still 94.4MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:32,944 INFO L158 Benchmark]: RCFGBuilder took 531.55ms. Allocated memory is still 94.4MB. Free memory was 52.9MB in the beginning and 62.2MB in the end (delta: -9.2MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:32,944 INFO L158 Benchmark]: BuchiAutomizer took 5725.37ms. Allocated memory was 94.4MB in the beginning and 163.6MB in the end (delta: 69.2MB). Free memory was 61.6MB in the beginning and 126.4MB in the end (delta: -64.8MB). Peak memory consumption was 87.5MB. Max. memory is 16.1GB. [2022-02-21 04:15:32,944 INFO L158 Benchmark]: Witness Printer took 33.21ms. Allocated memory is still 163.6MB. Free memory was 126.4MB in the beginning and 124.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:32,946 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 0.10ms. Allocated memory is still 94.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.17ms. Allocated memory is still 94.4MB. Free memory was 56.0MB in the beginning and 59.6MB in the end (delta: -3.6MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.93ms. Allocated memory is still 94.4MB. Free memory was 59.6MB in the beginning and 55.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.11ms. Allocated memory is still 94.4MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 531.55ms. Allocated memory is still 94.4MB. Free memory was 52.9MB in the beginning and 62.2MB in the end (delta: -9.2MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 5725.37ms. Allocated memory was 94.4MB in the beginning and 163.6MB in the end (delta: 69.2MB). Free memory was 61.6MB in the beginning and 126.4MB in the end (delta: -64.8MB). Peak memory consumption was 87.5MB. Max. memory is 16.1GB. * Witness Printer took 33.21ms. Allocated memory is still 163.6MB. Free memory was 126.4MB in the beginning and 124.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 279 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.6s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.1s. Büchi inclusion checks took 1.8s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 960 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 279 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1881 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1881 mSDsluCounter, 3086 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2056 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 229 IncrementalHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 1030 mSDtfsCounter, 229 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: 567]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36b71ffc=0, pumpRunning=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b6297d6=0, tmp___0=0, methaneLevelCritical=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d842fa0=0, retValue_acc=1, \result=0, retValue_acc=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1170b30d=0, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6447609c=29, \result=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1827cc85=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7643269f=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ec4c1fa=0, cleanupTimeShifts=4, \result=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@642e14b2=0, retValue_acc=0, tmp=0, \result=0, tmp=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18d127eb=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 567]: 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; [L460] int waterLevel = 1; [L461] int methaneLevelCritical = 0; [L627] int pumpRunning = 0; [L628] int systemActive = 1; [L858] int cleanupTimeShifts = 4; [L931] int retValue_acc ; [L932] int tmp ; [L936] FCALL select_helpers() [L937] FCALL select_features() [L938] CALL, EXPR valid_product() [L849] int retValue_acc ; [L852] retValue_acc = 1 [L853] return (retValue_acc); [L938] RET, EXPR valid_product() [L938] tmp = valid_product() [L940] COND TRUE \read(tmp) [L942] FCALL setup() [L943] CALL runTest() [L925] CALL test() [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 Loop: [L567] COND TRUE 1 [L569] COND TRUE splverifierCounter < 4 [L575] tmp = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp)) [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp___0)) [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND TRUE \read(tmp___2) [L612] CALL timeShift() [L634] COND FALSE !(\read(pumpRunning)) [L641] COND TRUE \read(systemActive) [L643] CALL processEnvironment() [L689] int tmp ; [L692] COND FALSE !(\read(pumpRunning)) [L707] CALL processEnvironment__wrappee__highWaterSensor() [L663] int tmp ; [L666] COND TRUE ! pumpRunning [L668] CALL, EXPR isHighWaterLevel() [L786] int retValue_acc ; [L787] int tmp ; [L788] int tmp___0 ; [L792] CALL, EXPR isHighWaterSensorDry() [L540] int retValue_acc ; [L543] COND TRUE waterLevel < 2 [L544] retValue_acc = 1 [L545] return (retValue_acc); [L792] RET, EXPR isHighWaterSensorDry() [L792] tmp = isHighWaterSensorDry() [L794] COND TRUE \read(tmp) [L795] tmp___0 = 0 [L799] retValue_acc = tmp___0 [L800] return (retValue_acc); [L668] RET, EXPR isHighWaterLevel() [L668] tmp = isHighWaterLevel() [L670] COND FALSE !(\read(tmp)) [L676] FCALL processEnvironment__wrappee__base() [L707] RET processEnvironment__wrappee__highWaterSensor() [L643] RET processEnvironment() [L649] CALL __utac_acc__Specification1_spec__1() [L420] int tmp ; [L421] int tmp___0 ; [L425] CALL, EXPR isMethaneLevelCritical() [L499] int retValue_acc ; [L502] retValue_acc = methaneLevelCritical [L503] return (retValue_acc); [L425] RET, EXPR isMethaneLevelCritical() [L425] tmp = isMethaneLevelCritical() [L427] COND FALSE !(\read(tmp)) [L649] RET __utac_acc__Specification1_spec__1() [L612] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:33,000 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)