./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product10.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product10.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 00ac86131dc0e0af1cc82efd839ee9faae2b8444f182d9d05eed34c82369a7f5 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:41,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:41,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:41,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:41,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:41,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:41,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:41,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:41,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:41,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:41,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:41,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:41,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:41,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:41,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:41,628 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:41,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:41,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:41,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:41,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:41,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:41,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:41,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:41,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:41,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:41,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:41,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:41,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:41,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:41,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:41,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:41,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:41,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:41,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:41,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:41,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:41,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:41,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:41,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:41,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:41,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:41,649 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:41,674 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:41,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:41,677 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:41,677 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:41,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:41,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:41,678 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:41,678 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:41,678 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:41,679 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:41,679 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:41,679 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:41,680 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:41,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:41,680 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:41,680 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:41,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:41,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:41,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:41,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:41,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:41,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:41,681 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:41,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:41,681 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:41,681 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:41,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:41,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:41,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:41,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:41,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:41,683 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:41,683 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00ac86131dc0e0af1cc82efd839ee9faae2b8444f182d9d05eed34c82369a7f5 [2022-02-21 04:16:41,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:41,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:41,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:41,905 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:41,906 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:41,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product10.cil.c [2022-02-21 04:16:41,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b386113f/dc00a4677dd1434ea1b81b1783dd27b3/FLAGb239206b6 [2022-02-21 04:16:42,283 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:42,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product10.cil.c [2022-02-21 04:16:42,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b386113f/dc00a4677dd1434ea1b81b1783dd27b3/FLAGb239206b6 [2022-02-21 04:16:42,684 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b386113f/dc00a4677dd1434ea1b81b1783dd27b3 [2022-02-21 04:16:42,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:42,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:42,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:42,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:42,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:42,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:42" (1/1) ... [2022-02-21 04:16:42,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a27ae19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:42, skipping insertion in model container [2022-02-21 04:16:42,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:42" (1/1) ... [2022-02-21 04:16:42,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:42,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:42,956 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product10.cil.c[3343,3356] [2022-02-21 04:16:43,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:43,161 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:43,211 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product10.cil.c[3343,3356] [2022-02-21 04:16:43,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:43,332 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:43,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:43 WrapperNode [2022-02-21 04:16:43,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:43,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:43,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:43,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:43,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:43" (1/1) ... [2022-02-21 04:16:43,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:43" (1/1) ... [2022-02-21 04:16:43,457 INFO L137 Inliner]: procedures = 51, calls = 148, calls flagged for inlining = 45, calls inlined = 36, statements flattened = 314 [2022-02-21 04:16:43,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:43,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:43,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:43,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:43,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:43" (1/1) ... [2022-02-21 04:16:43,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:43" (1/1) ... [2022-02-21 04:16:43,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:43" (1/1) ... [2022-02-21 04:16:43,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:43" (1/1) ... [2022-02-21 04:16:43,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:43" (1/1) ... [2022-02-21 04:16:43,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:43" (1/1) ... [2022-02-21 04:16:43,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:43" (1/1) ... [2022-02-21 04:16:43,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:43,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:43,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:43,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:43,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:43" (1/1) ... [2022-02-21 04:16:43,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:43,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:43,519 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 04:16:43,540 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 04:16:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:43,652 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:43,653 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:43,955 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:43,960 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:43,960 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:43,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:43 BoogieIcfgContainer [2022-02-21 04:16:43,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:43,962 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:43,962 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:43,972 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:43,973 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:43,973 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:42" (1/3) ... [2022-02-21 04:16:43,974 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4dc6934a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:43, skipping insertion in model container [2022-02-21 04:16:43,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:43,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:43" (2/3) ... [2022-02-21 04:16:43,975 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4dc6934a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:43, skipping insertion in model container [2022-02-21 04:16:43,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:43,976 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:43" (3/3) ... [2022-02-21 04:16:43,977 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product10.cil.c [2022-02-21 04:16:44,016 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:44,017 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:44,017 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:44,017 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:44,017 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:44,017 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:44,017 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:44,017 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:44,034 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 82 states, 81 states have (on average 1.382716049382716) internal successors, (112), 81 states have internal predecessors, (112), 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 04:16:44,095 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2022-02-21 04:16:44,095 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:44,096 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:44,101 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:44,101 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:44,101 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:44,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 82 states, 81 states have (on average 1.382716049382716) internal successors, (112), 81 states have internal predecessors, (112), 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 04:16:44,118 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2022-02-21 04:16:44,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:44,118 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:44,119 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:44,120 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:44,128 INFO L791 eck$LassoCheckResult]: Stem: 60#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 48#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 74#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 69#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 35#L83true main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 53#L873true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 62#L850true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 27#L562-2true [2022-02-21 04:16:44,129 INFO L793 eck$LassoCheckResult]: Loop: 27#L562-2true assume !false; 81#L563true assume test_~splverifierCounter~0#1 < 4; 22#L564true test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 45#L572true assume !(0 != test_~tmp~3#1); 29#L572-2true test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 75#L582true assume !(0 != test_~tmp___0~0#1); 37#L582-2true test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 25#L592true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 42#L600true assume 0 != test_~tmp___1~0#1; 50#L600-2true assume { :begin_inline_timeShift } true; 8#L631true assume !(0 != ~pumpRunning~0); 30#L631-2true assume !(0 != ~systemActive~0); 57#L638-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret47#1, __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 77#L137true __utac_acc__Specification3_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret47#1;havoc __utac_acc__Specification3_spec__1_#t~ret47#1; 10#L766true assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 24#L772-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 83#L648true assume { :end_inline_timeShift } true; 27#L562-2true [2022-02-21 04:16:44,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:44,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:16:44,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:44,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666646224] [2022-02-21 04:16:44,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:44,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:44,298 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:44,341 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:44,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:44,344 INFO L85 PathProgramCache]: Analyzing trace with hash -944096044, now seen corresponding path program 1 times [2022-02-21 04:16:44,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:44,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750441766] [2022-02-21 04:16:44,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:44,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:44,371 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:44,381 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:44,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:44,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1875777648, now seen corresponding path program 1 times [2022-02-21 04:16:44,384 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:44,384 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066308773] [2022-02-21 04:16:44,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:44,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:44,537 INFO L290 TraceCheckUtils]: 0: Hoare triple {90#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; {92#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:44,538 INFO L290 TraceCheckUtils]: 1: Hoare triple {92#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; {92#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:44,539 INFO L290 TraceCheckUtils]: 2: Hoare triple {92#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {92#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:44,540 INFO L290 TraceCheckUtils]: 3: Hoare triple {92#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {93#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:44,540 INFO L290 TraceCheckUtils]: 4: Hoare triple {93#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; {94#(= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)} is VALID [2022-02-21 04:16:44,541 INFO L290 TraceCheckUtils]: 5: Hoare triple {94#(= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)} assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; {95#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:44,541 INFO L290 TraceCheckUtils]: 6: Hoare triple {95#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {95#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:44,542 INFO L290 TraceCheckUtils]: 7: Hoare triple {95#(not (= 0 ~systemActive~0))} assume !false; {95#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:44,542 INFO L290 TraceCheckUtils]: 8: Hoare triple {95#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {95#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:44,543 INFO L290 TraceCheckUtils]: 9: Hoare triple {95#(not (= 0 ~systemActive~0))} test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {95#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:44,543 INFO L290 TraceCheckUtils]: 10: Hoare triple {95#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~3#1); {95#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:44,544 INFO L290 TraceCheckUtils]: 11: Hoare triple {95#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {95#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:44,545 INFO L290 TraceCheckUtils]: 12: Hoare triple {95#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {95#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:44,545 INFO L290 TraceCheckUtils]: 13: Hoare triple {95#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {95#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:44,546 INFO L290 TraceCheckUtils]: 14: Hoare triple {95#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; {95#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:44,549 INFO L290 TraceCheckUtils]: 15: Hoare triple {95#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___1~0#1; {95#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:44,550 INFO L290 TraceCheckUtils]: 16: Hoare triple {95#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {95#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:44,550 INFO L290 TraceCheckUtils]: 17: Hoare triple {95#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {95#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:44,551 INFO L290 TraceCheckUtils]: 18: Hoare triple {95#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {91#false} is VALID [2022-02-21 04:16:44,551 INFO L290 TraceCheckUtils]: 19: Hoare triple {91#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret47#1, __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; {91#false} is VALID [2022-02-21 04:16:44,551 INFO L290 TraceCheckUtils]: 20: Hoare triple {91#false} __utac_acc__Specification3_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret47#1;havoc __utac_acc__Specification3_spec__1_#t~ret47#1; {91#false} is VALID [2022-02-21 04:16:44,552 INFO L290 TraceCheckUtils]: 21: Hoare triple {91#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; {91#false} is VALID [2022-02-21 04:16:44,552 INFO L290 TraceCheckUtils]: 22: Hoare triple {91#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {91#false} is VALID [2022-02-21 04:16:44,552 INFO L290 TraceCheckUtils]: 23: Hoare triple {91#false} assume { :end_inline_timeShift } true; {91#false} is VALID [2022-02-21 04:16:44,554 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 04:16:44,554 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:44,555 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066308773] [2022-02-21 04:16:44,555 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066308773] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:44,555 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:44,555 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:44,556 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099372653] [2022-02-21 04:16:44,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:44,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:44,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:44,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:44,694 INFO L87 Difference]: Start difference. First operand has 82 states, 81 states have (on average 1.382716049382716) internal successors, (112), 81 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:44,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:44,910 INFO L93 Difference]: Finished difference Result 79 states and 98 transitions. [2022-02-21 04:16:44,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:16:44,911 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:44,937 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:44,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 79 states and 98 transitions. [2022-02-21 04:16:44,957 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2022-02-21 04:16:44,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 79 states to 69 states and 88 transitions. [2022-02-21 04:16:44,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2022-02-21 04:16:44,968 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 69 [2022-02-21 04:16:44,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 88 transitions. [2022-02-21 04:16:44,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:44,969 INFO L681 BuchiCegarLoop]: Abstraction has 69 states and 88 transitions. [2022-02-21 04:16:44,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 88 transitions. [2022-02-21 04:16:44,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-02-21 04:16:44,991 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:44,993 INFO L82 GeneralOperation]: Start isEquivalent. First operand 69 states and 88 transitions. Second operand has 69 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 68 states have internal predecessors, (88), 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 04:16:44,994 INFO L74 IsIncluded]: Start isIncluded. First operand 69 states and 88 transitions. Second operand has 69 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 68 states have internal predecessors, (88), 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 04:16:44,995 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand has 69 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 68 states have internal predecessors, (88), 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 04:16:44,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:44,998 INFO L93 Difference]: Finished difference Result 69 states and 88 transitions. [2022-02-21 04:16:44,998 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2022-02-21 04:16:44,999 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:44,999 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:45,000 INFO L74 IsIncluded]: Start isIncluded. First operand has 69 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 68 states have internal predecessors, (88), 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 69 states and 88 transitions. [2022-02-21 04:16:45,000 INFO L87 Difference]: Start difference. First operand has 69 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 68 states have internal predecessors, (88), 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 69 states and 88 transitions. [2022-02-21 04:16:45,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:45,003 INFO L93 Difference]: Finished difference Result 69 states and 88 transitions. [2022-02-21 04:16:45,003 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2022-02-21 04:16:45,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:45,016 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:45,016 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:45,016 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:45,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 68 states have internal predecessors, (88), 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 04:16:45,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2022-02-21 04:16:45,019 INFO L704 BuchiCegarLoop]: Abstraction has 69 states and 88 transitions. [2022-02-21 04:16:45,019 INFO L587 BuchiCegarLoop]: Abstraction has 69 states and 88 transitions. [2022-02-21 04:16:45,019 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:45,019 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 88 transitions. [2022-02-21 04:16:45,020 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2022-02-21 04:16:45,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:45,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:45,021 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:45,021 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:45,021 INFO L791 eck$LassoCheckResult]: Stem: 243#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 237#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 238#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 247#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 225#L83 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 226#L873 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 239#L850 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 218#L562-2 [2022-02-21 04:16:45,021 INFO L793 eck$LassoCheckResult]: Loop: 218#L562-2 assume !false; 219#L563 assume test_~splverifierCounter~0#1 < 4; 207#L564 test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 208#L572 assume !(0 != test_~tmp~3#1); 221#L572-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 222#L582 assume !(0 != test_~tmp___0~0#1); 227#L582-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 213#L592 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 214#L600 assume 0 != test_~tmp___1~0#1; 230#L600-2 assume { :begin_inline_timeShift } true; 189#L631 assume !(0 != ~pumpRunning~0); 190#L631-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 220#L655 assume { :end_inline_processEnvironment } true; 229#L638-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret47#1, __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 242#L137 __utac_acc__Specification3_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret47#1;havoc __utac_acc__Specification3_spec__1_#t~ret47#1; 193#L766 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 185#L772-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 211#L648 assume { :end_inline_timeShift } true; 218#L562-2 [2022-02-21 04:16:45,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:45,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:16:45,022 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:45,022 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037483572] [2022-02-21 04:16:45,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:45,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:45,032 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:45,041 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:45,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:45,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1426270263, now seen corresponding path program 1 times [2022-02-21 04:16:45,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:45,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882448794] [2022-02-21 04:16:45,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:45,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:45,046 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:45,049 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:45,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:45,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1686055685, now seen corresponding path program 1 times [2022-02-21 04:16:45,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:45,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773001579] [2022-02-21 04:16:45,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:45,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:45,085 INFO L290 TraceCheckUtils]: 0: Hoare triple {393#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,086 INFO L290 TraceCheckUtils]: 1: Hoare triple {395#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,086 INFO L290 TraceCheckUtils]: 2: Hoare triple {395#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,087 INFO L290 TraceCheckUtils]: 3: Hoare triple {395#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,087 INFO L290 TraceCheckUtils]: 4: Hoare triple {395#(= ~methaneLevelCritical~0 0)} main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,088 INFO L290 TraceCheckUtils]: 5: Hoare triple {395#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,088 INFO L290 TraceCheckUtils]: 6: Hoare triple {395#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,088 INFO L290 TraceCheckUtils]: 7: Hoare triple {395#(= ~methaneLevelCritical~0 0)} assume !false; {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,089 INFO L290 TraceCheckUtils]: 8: Hoare triple {395#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,089 INFO L290 TraceCheckUtils]: 9: Hoare triple {395#(= ~methaneLevelCritical~0 0)} test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,089 INFO L290 TraceCheckUtils]: 10: Hoare triple {395#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~3#1); {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,090 INFO L290 TraceCheckUtils]: 11: Hoare triple {395#(= ~methaneLevelCritical~0 0)} test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,090 INFO L290 TraceCheckUtils]: 12: Hoare triple {395#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~0#1); {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,091 INFO L290 TraceCheckUtils]: 13: Hoare triple {395#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,091 INFO L290 TraceCheckUtils]: 14: Hoare triple {395#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,091 INFO L290 TraceCheckUtils]: 15: Hoare triple {395#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___1~0#1; {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,092 INFO L290 TraceCheckUtils]: 16: Hoare triple {395#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,092 INFO L290 TraceCheckUtils]: 17: Hoare triple {395#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,092 INFO L290 TraceCheckUtils]: 18: Hoare triple {395#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,093 INFO L290 TraceCheckUtils]: 19: Hoare triple {395#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {395#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:45,093 INFO L290 TraceCheckUtils]: 20: Hoare triple {395#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret47#1, __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; {396#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:16:45,096 INFO L290 TraceCheckUtils]: 21: Hoare triple {396#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret47#1;havoc __utac_acc__Specification3_spec__1_#t~ret47#1; {397#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5#1| 0)} is VALID [2022-02-21 04:16:45,096 INFO L290 TraceCheckUtils]: 22: Hoare triple {397#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; {394#false} is VALID [2022-02-21 04:16:45,096 INFO L290 TraceCheckUtils]: 23: Hoare triple {394#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {394#false} is VALID [2022-02-21 04:16:45,097 INFO L290 TraceCheckUtils]: 24: Hoare triple {394#false} assume { :end_inline_timeShift } true; {394#false} is VALID [2022-02-21 04:16:45,097 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 04:16:45,097 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:45,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773001579] [2022-02-21 04:16:45,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773001579] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:45,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:45,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:16:45,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534682238] [2022-02-21 04:16:45,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:45,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:45,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:16:45,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:16:45,194 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. cyclomatic complexity: 21 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:45,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:45,553 INFO L93 Difference]: Finished difference Result 226 states and 291 transitions. [2022-02-21 04:16:45,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:16:45,554 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:45,575 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:45,576 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 226 states and 291 transitions. [2022-02-21 04:16:45,584 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 164 [2022-02-21 04:16:45,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 226 states to 226 states and 291 transitions. [2022-02-21 04:16:45,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 226 [2022-02-21 04:16:45,592 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 226 [2022-02-21 04:16:45,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 226 states and 291 transitions. [2022-02-21 04:16:45,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:45,593 INFO L681 BuchiCegarLoop]: Abstraction has 226 states and 291 transitions. [2022-02-21 04:16:45,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states and 291 transitions. [2022-02-21 04:16:45,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 131. [2022-02-21 04:16:45,612 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:45,613 INFO L82 GeneralOperation]: Start isEquivalent. First operand 226 states and 291 transitions. Second operand has 131 states, 131 states have (on average 1.2595419847328244) internal successors, (165), 130 states have internal predecessors, (165), 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 04:16:45,613 INFO L74 IsIncluded]: Start isIncluded. First operand 226 states and 291 transitions. Second operand has 131 states, 131 states have (on average 1.2595419847328244) internal successors, (165), 130 states have internal predecessors, (165), 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 04:16:45,614 INFO L87 Difference]: Start difference. First operand 226 states and 291 transitions. Second operand has 131 states, 131 states have (on average 1.2595419847328244) internal successors, (165), 130 states have internal predecessors, (165), 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 04:16:45,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:45,621 INFO L93 Difference]: Finished difference Result 226 states and 291 transitions. [2022-02-21 04:16:45,621 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 291 transitions. [2022-02-21 04:16:45,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:45,635 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:45,636 INFO L74 IsIncluded]: Start isIncluded. First operand has 131 states, 131 states have (on average 1.2595419847328244) internal successors, (165), 130 states have internal predecessors, (165), 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 226 states and 291 transitions. [2022-02-21 04:16:45,636 INFO L87 Difference]: Start difference. First operand has 131 states, 131 states have (on average 1.2595419847328244) internal successors, (165), 130 states have internal predecessors, (165), 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 226 states and 291 transitions. [2022-02-21 04:16:45,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:45,642 INFO L93 Difference]: Finished difference Result 226 states and 291 transitions. [2022-02-21 04:16:45,642 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 291 transitions. [2022-02-21 04:16:45,643 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:45,643 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:45,643 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:45,643 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:45,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 131 states have (on average 1.2595419847328244) internal successors, (165), 130 states have internal predecessors, (165), 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 04:16:45,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 165 transitions. [2022-02-21 04:16:45,646 INFO L704 BuchiCegarLoop]: Abstraction has 131 states and 165 transitions. [2022-02-21 04:16:45,647 INFO L587 BuchiCegarLoop]: Abstraction has 131 states and 165 transitions. [2022-02-21 04:16:45,647 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:45,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states and 165 transitions. [2022-02-21 04:16:45,648 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2022-02-21 04:16:45,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:45,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:45,648 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:45,648 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] [2022-02-21 04:16:45,649 INFO L791 eck$LassoCheckResult]: Stem: 709#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 700#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 701#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 717#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 681#L83 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 682#L873 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 702#L850 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 673#L562-2 [2022-02-21 04:16:45,649 INFO L793 eck$LassoCheckResult]: Loop: 673#L562-2 assume !false; 674#L563 assume test_~splverifierCounter~0#1 < 4; 723#L564 test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 692#L572 assume !(0 != test_~tmp~3#1); 675#L572-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 676#L582 assume !(0 != test_~tmp___0~0#1); 719#L582-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 757#L592 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 755#L753 assume { :end_inline_startSystem } true; 698#L600-2 assume { :begin_inline_timeShift } true; 699#L631 assume !(0 != ~pumpRunning~0); 677#L631-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 678#L655 assume { :end_inline_processEnvironment } true; 688#L638-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret47#1, __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 706#L137 __utac_acc__Specification3_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret47#1;havoc __utac_acc__Specification3_spec__1_#t~ret47#1; 645#L766 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~5#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 646#L169 __utac_acc__Specification3_spec__1_#t~ret48#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~1#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 718#L772 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1#1); 754#L772-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 724#L648 assume { :end_inline_timeShift } true; 673#L562-2 [2022-02-21 04:16:45,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:45,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:16:45,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:45,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740122725] [2022-02-21 04:16:45,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:45,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:45,669 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:45,690 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:45,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:45,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1080604203, now seen corresponding path program 1 times [2022-02-21 04:16:45,691 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:45,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727589877] [2022-02-21 04:16:45,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:45,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:45,696 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:45,699 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:45,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:45,700 INFO L85 PathProgramCache]: Analyzing trace with hash -567393809, now seen corresponding path program 1 times [2022-02-21 04:16:45,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:45,709 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419130982] [2022-02-21 04:16:45,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:45,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:45,720 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:45,731 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:48,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:48 BoogieIcfgContainer [2022-02-21 04:16:48,633 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:48,633 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:48,633 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:48,633 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:48,634 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:43" (3/4) ... [2022-02-21 04:16:48,636 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:48,671 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:48,671 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:48,672 INFO L158 Benchmark]: Toolchain (without parser) took 5984.13ms. Allocated memory was 127.9MB in the beginning and 188.7MB in the end (delta: 60.8MB). Free memory was 95.2MB in the beginning and 60.5MB in the end (delta: 34.7MB). Peak memory consumption was 94.8MB. Max. memory is 16.1GB. [2022-02-21 04:16:48,673 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 38.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:48,673 INFO L158 Benchmark]: CACSL2BoogieTranslator took 643.93ms. Allocated memory is still 127.9MB. Free memory was 95.2MB in the beginning and 90.7MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:16:48,673 INFO L158 Benchmark]: Boogie Procedure Inliner took 119.08ms. Allocated memory is still 127.9MB. Free memory was 90.7MB in the beginning and 88.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:48,674 INFO L158 Benchmark]: Boogie Preprocessor took 21.02ms. Allocated memory is still 127.9MB. Free memory was 88.0MB in the beginning and 86.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:48,674 INFO L158 Benchmark]: RCFGBuilder took 471.23ms. Allocated memory is still 127.9MB. Free memory was 86.0MB in the beginning and 68.1MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-02-21 04:16:48,675 INFO L158 Benchmark]: BuchiAutomizer took 4670.89ms. Allocated memory was 127.9MB in the beginning and 188.7MB in the end (delta: 60.8MB). Free memory was 68.1MB in the beginning and 62.5MB in the end (delta: 5.6MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. [2022-02-21 04:16:48,675 INFO L158 Benchmark]: Witness Printer took 38.24ms. Allocated memory is still 188.7MB. Free memory was 62.5MB in the beginning and 60.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:48,677 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 0.19ms. Allocated memory is still 83.9MB. Free memory is still 38.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 643.93ms. Allocated memory is still 127.9MB. Free memory was 95.2MB in the beginning and 90.7MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 119.08ms. Allocated memory is still 127.9MB. Free memory was 90.7MB in the beginning and 88.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.02ms. Allocated memory is still 127.9MB. Free memory was 88.0MB in the beginning and 86.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 471.23ms. Allocated memory is still 127.9MB. Free memory was 86.0MB in the beginning and 68.1MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 4670.89ms. Allocated memory was 127.9MB in the beginning and 188.7MB in the end (delta: 60.8MB). Free memory was 68.1MB in the beginning and 62.5MB in the end (delta: 5.6MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. * Witness Printer took 38.24ms. Allocated memory is still 188.7MB. Free memory was 62.5MB in the beginning and 60.5MB in the end (delta: 2.0MB). 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 131 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 95 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 131 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 651 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 651 mSDsluCounter, 568 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 357 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 211 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 562]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@353161d3=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2421b5e9=0, tmp___0=0, NULL=1, methaneLevelCritical=0, tmp___0=1, \result=0, retValue_acc=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d9b5eb3=0, \result=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30bf2929=29, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5be0396d=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13e36029=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6abd07c9=0, tmp=1, cleanupTimeShifts=4, tmp=0, \result=0, head=0, retValue_acc=1, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@300c6944=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 562]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L352] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L623] int pumpRunning = 0; [L624] int systemActive = 1; [L791] int cleanupTimeShifts = 4; [L864] int retValue_acc ; [L865] int tmp ; [L869] FCALL select_helpers() [L870] FCALL select_features() [L871] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L871] RET, EXPR valid_product() [L871] tmp = valid_product() [L873] COND TRUE \read(tmp) [L875] FCALL setup() [L876] CALL runTest() [L858] CALL test() [L553] int splverifierCounter ; [L554] int tmp ; [L555] int tmp___0 ; [L556] int tmp___1 ; [L557] int tmp___2 ; [L560] splverifierCounter = 0 Loop: [L562] COND TRUE 1 [L564] COND TRUE splverifierCounter < 4 [L570] tmp = __VERIFIER_nondet_int() [L572] COND FALSE !(\read(tmp)) [L580] tmp___0 = __VERIFIER_nondet_int() [L582] COND FALSE !(\read(tmp___0)) [L590] tmp___2 = __VERIFIER_nondet_int() [L592] COND TRUE \read(tmp___2) [L594] CALL startSystem() [L752] systemActive = 1 [L594] RET startSystem() [L607] CALL timeShift() [L631] COND FALSE !(\read(pumpRunning)) [L638] COND TRUE \read(systemActive) [L640] FCALL processEnvironment() [L646] CALL __utac_acc__Specification3_spec__1() [L758] int tmp ; [L759] int tmp___0 ; [L760] int tmp___1 ; [L764] CALL, EXPR isMethaneLevelCritical() [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); [L764] RET, EXPR isMethaneLevelCritical() [L764] tmp = isMethaneLevelCritical() [L766] COND FALSE !(\read(tmp)) [L770] CALL, EXPR getWaterLevel() [L165] int retValue_acc ; [L168] retValue_acc = waterLevel [L169] return (retValue_acc); [L770] RET, EXPR getWaterLevel() [L770] tmp___0 = getWaterLevel() [L772] COND FALSE !(tmp___0 == 2) [L646] RET __utac_acc__Specification3_spec__1() [L607] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:48,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)