./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product42.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_product42.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 449370313253a0d5d7b509b2cd15e912fe8e85dcb7140575e7078385cf7fc6cf --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:06,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:06,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:06,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:06,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:06,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:06,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:06,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:06,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:06,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:06,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:06,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:06,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:06,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:06,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:06,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:06,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:06,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:06,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:06,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:06,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:06,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:06,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:06,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:06,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:06,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:06,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:06,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:06,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:06,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:06,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:06,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:06,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:06,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:06,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:06,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:06,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:06,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:06,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:06,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:07,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:07,001 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:07,030 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:07,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:07,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:07,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:07,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:07,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:07,033 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:07,033 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:07,033 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:07,034 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:07,034 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:07,035 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:07,035 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:07,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:07,035 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:07,035 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:07,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:07,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:07,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:07,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:07,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:07,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:07,037 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:07,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:07,037 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:07,038 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:07,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:07,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:07,038 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:07,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:07,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:07,040 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:07,040 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 449370313253a0d5d7b509b2cd15e912fe8e85dcb7140575e7078385cf7fc6cf [2022-02-21 04:17:07,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:07,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:07,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:07,315 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:07,315 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:07,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c [2022-02-21 04:17:07,391 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a75bbd108/d2320c7ded244beab52fd4fc98a55532/FLAGc5f186f88 [2022-02-21 04:17:07,881 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:07,885 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c [2022-02-21 04:17:07,904 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a75bbd108/d2320c7ded244beab52fd4fc98a55532/FLAGc5f186f88 [2022-02-21 04:17:08,368 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a75bbd108/d2320c7ded244beab52fd4fc98a55532 [2022-02-21 04:17:08,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:08,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:08,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:08,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:08,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:08,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:08" (1/1) ... [2022-02-21 04:17:08,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e5e1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:08, skipping insertion in model container [2022-02-21 04:17:08,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:08" (1/1) ... [2022-02-21 04:17:08,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:08,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:08,714 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_product42.cil.c[7477,7490] [2022-02-21 04:17:08,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:08,823 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:08,880 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_product42.cil.c[7477,7490] [2022-02-21 04:17:08,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:08,950 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:08,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:08 WrapperNode [2022-02-21 04:17:08,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:08,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:08,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:08,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:08,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:08" (1/1) ... [2022-02-21 04:17:08,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:08" (1/1) ... [2022-02-21 04:17:09,034 INFO L137 Inliner]: procedures = 54, calls = 153, calls flagged for inlining = 50, calls inlined = 60, statements flattened = 488 [2022-02-21 04:17:09,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:09,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:09,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:09,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:09,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:08" (1/1) ... [2022-02-21 04:17:09,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:08" (1/1) ... [2022-02-21 04:17:09,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:08" (1/1) ... [2022-02-21 04:17:09,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:08" (1/1) ... [2022-02-21 04:17:09,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:08" (1/1) ... [2022-02-21 04:17:09,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:08" (1/1) ... [2022-02-21 04:17:09,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:08" (1/1) ... [2022-02-21 04:17:09,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:09,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:09,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:09,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:09,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:08" (1/1) ... [2022-02-21 04:17:09,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:09,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:09,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:17:09,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:17:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:09,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:09,269 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:09,270 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:09,653 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:09,660 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:09,660 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:09,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:09 BoogieIcfgContainer [2022-02-21 04:17:09,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:09,663 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:09,664 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:09,667 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:09,667 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:09,668 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:08" (1/3) ... [2022-02-21 04:17:09,669 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@340575a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:09, skipping insertion in model container [2022-02-21 04:17:09,669 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:09,669 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:08" (2/3) ... [2022-02-21 04:17:09,669 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@340575a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:09, skipping insertion in model container [2022-02-21 04:17:09,669 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:09,670 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:09" (3/3) ... [2022-02-21 04:17:09,671 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product42.cil.c [2022-02-21 04:17:09,708 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:09,708 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:09,708 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:09,712 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:09,712 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:09,712 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:09,712 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:09,712 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:09,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 124 states, 123 states have (on average 1.3739837398373984) internal successors, (169), 123 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:09,800 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2022-02-21 04:17:09,800 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:09,800 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:09,805 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:09,805 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 04:17:09,805 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:09,809 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 124 states, 123 states have (on average 1.3739837398373984) internal successors, (169), 123 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:09,828 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2022-02-21 04:17:09,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:09,829 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:09,830 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:09,830 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 04:17:09,842 INFO L791 eck$LassoCheckResult]: Stem: 113#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 44#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 84#L534true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 91#L527true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 9#L542true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 58#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 107#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 27#L165-2true [2022-02-21 04:17:09,845 INFO L793 eck$LassoCheckResult]: Loop: 27#L165-2true assume !false; 88#L166true assume test_~splverifierCounter~0#1 < 4; 23#L167true test_~tmp~1#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 4#L175true assume !(0 != test_~tmp~1#1); 71#L175-2true test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 95#L185true assume !(0 != test_~tmp___0~0#1); 51#L185-2true test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 105#L195true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 111#L404true assume { :end_inline_startSystem } true; 69#L203-2true assume { :begin_inline_timeShift } true; 99#L237true assume !(0 != ~pumpRunning~0); 47#L237-2true assume !(0 != ~systemActive~0); 30#L244-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 41#L452-1true __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 114#L922true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 103#L928-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 57#L254true assume { :end_inline_timeShift } true; 27#L165-2true [2022-02-21 04:17:09,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:09,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:09,860 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:09,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810958879] [2022-02-21 04:17:09,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:09,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:09,998 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:10,082 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:10,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:10,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1650134675, now seen corresponding path program 1 times [2022-02-21 04:17:10,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:10,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653024307] [2022-02-21 04:17:10,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:10,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:10,209 INFO L290 TraceCheckUtils]: 0: Hoare triple {130#true} assume !false; {130#true} is VALID [2022-02-21 04:17:10,209 INFO L290 TraceCheckUtils]: 1: Hoare triple {130#true} assume test_~splverifierCounter~0#1 < 4; {130#true} is VALID [2022-02-21 04:17:10,210 INFO L290 TraceCheckUtils]: 2: Hoare triple {130#true} test_~tmp~1#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {130#true} is VALID [2022-02-21 04:17:10,210 INFO L290 TraceCheckUtils]: 3: Hoare triple {130#true} assume !(0 != test_~tmp~1#1); {130#true} is VALID [2022-02-21 04:17:10,210 INFO L290 TraceCheckUtils]: 4: Hoare triple {130#true} test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {130#true} is VALID [2022-02-21 04:17:10,211 INFO L290 TraceCheckUtils]: 5: Hoare triple {130#true} assume !(0 != test_~tmp___0~0#1); {130#true} is VALID [2022-02-21 04:17:10,211 INFO L290 TraceCheckUtils]: 6: Hoare triple {130#true} test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {130#true} is VALID [2022-02-21 04:17:10,212 INFO L290 TraceCheckUtils]: 7: Hoare triple {130#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {132#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:10,213 INFO L290 TraceCheckUtils]: 8: Hoare triple {132#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {132#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:10,213 INFO L290 TraceCheckUtils]: 9: Hoare triple {132#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {132#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:10,215 INFO L290 TraceCheckUtils]: 10: Hoare triple {132#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {132#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:10,220 INFO L290 TraceCheckUtils]: 11: Hoare triple {132#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {131#false} is VALID [2022-02-21 04:17:10,221 INFO L290 TraceCheckUtils]: 12: Hoare triple {131#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; {131#false} is VALID [2022-02-21 04:17:10,221 INFO L290 TraceCheckUtils]: 13: Hoare triple {131#false} __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; {131#false} is VALID [2022-02-21 04:17:10,221 INFO L290 TraceCheckUtils]: 14: Hoare triple {131#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {131#false} is VALID [2022-02-21 04:17:10,222 INFO L290 TraceCheckUtils]: 15: Hoare triple {131#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {131#false} is VALID [2022-02-21 04:17:10,222 INFO L290 TraceCheckUtils]: 16: Hoare triple {131#false} assume { :end_inline_timeShift } true; {131#false} is VALID [2022-02-21 04:17:10,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:17:10,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:10,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653024307] [2022-02-21 04:17:10,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653024307] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:10,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:10,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:10,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963253744] [2022-02-21 04:17:10,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:10,230 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:10,231 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:10,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:10,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:10,268 INFO L87 Difference]: Start difference. First operand has 124 states, 123 states have (on average 1.3739837398373984) internal successors, (169), 123 states have internal predecessors, (169), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:10,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:10,485 INFO L93 Difference]: Finished difference Result 121 states and 156 transitions. [2022-02-21 04:17:10,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:10,486 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:10,508 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:10,512 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 121 states and 156 transitions. [2022-02-21 04:17:10,527 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2022-02-21 04:17:10,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 121 states to 111 states and 145 transitions. [2022-02-21 04:17:10,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 111 [2022-02-21 04:17:10,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 111 [2022-02-21 04:17:10,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 145 transitions. [2022-02-21 04:17:10,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:10,537 INFO L681 BuchiCegarLoop]: Abstraction has 111 states and 145 transitions. [2022-02-21 04:17:10,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 145 transitions. [2022-02-21 04:17:10,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2022-02-21 04:17:10,572 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:10,573 INFO L82 GeneralOperation]: Start isEquivalent. First operand 111 states and 145 transitions. Second operand has 111 states, 111 states have (on average 1.3063063063063063) internal successors, (145), 110 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:10,575 INFO L74 IsIncluded]: Start isIncluded. First operand 111 states and 145 transitions. Second operand has 111 states, 111 states have (on average 1.3063063063063063) internal successors, (145), 110 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:10,576 INFO L87 Difference]: Start difference. First operand 111 states and 145 transitions. Second operand has 111 states, 111 states have (on average 1.3063063063063063) internal successors, (145), 110 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:10,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:10,580 INFO L93 Difference]: Finished difference Result 111 states and 145 transitions. [2022-02-21 04:17:10,580 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 145 transitions. [2022-02-21 04:17:10,581 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:10,582 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:10,582 INFO L74 IsIncluded]: Start isIncluded. First operand has 111 states, 111 states have (on average 1.3063063063063063) internal successors, (145), 110 states have internal predecessors, (145), 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 111 states and 145 transitions. [2022-02-21 04:17:10,583 INFO L87 Difference]: Start difference. First operand has 111 states, 111 states have (on average 1.3063063063063063) internal successors, (145), 110 states have internal predecessors, (145), 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 111 states and 145 transitions. [2022-02-21 04:17:10,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:10,586 INFO L93 Difference]: Finished difference Result 111 states and 145 transitions. [2022-02-21 04:17:10,587 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 145 transitions. [2022-02-21 04:17:10,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:10,588 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:10,588 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:10,588 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:10,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 111 states have (on average 1.3063063063063063) internal successors, (145), 110 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:10,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 145 transitions. [2022-02-21 04:17:10,592 INFO L704 BuchiCegarLoop]: Abstraction has 111 states and 145 transitions. [2022-02-21 04:17:10,593 INFO L587 BuchiCegarLoop]: Abstraction has 111 states and 145 transitions. [2022-02-21 04:17:10,593 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:10,593 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 145 transitions. [2022-02-21 04:17:10,594 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2022-02-21 04:17:10,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:10,594 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:10,595 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:10,595 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 04:17:10,595 INFO L791 eck$LassoCheckResult]: Stem: 362#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 313#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 314#L534 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 352#L527 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 266#L542 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 267#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 327#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 297#L165-2 [2022-02-21 04:17:10,596 INFO L793 eck$LassoCheckResult]: Loop: 297#L165-2 assume !false; 298#L166 assume test_~splverifierCounter~0#1 < 4; 294#L167 test_~tmp~1#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 254#L175 assume !(0 != test_~tmp~1#1); 256#L175-2 test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 344#L185 assume !(0 != test_~tmp___0~0#1); 321#L185-2 test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 322#L195 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 360#L404 assume { :end_inline_startSystem } true; 300#L203-2 assume { :begin_inline_timeShift } true; 343#L237 assume !(0 != ~pumpRunning~0); 260#L237-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 315#L269 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 335#L261-1 assume { :end_inline_processEnvironment__wrappee__base } true; 318#L269-1 assume { :end_inline_processEnvironment } true; 302#L244-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 303#L452-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 310#L922 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 338#L928-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 326#L254 assume { :end_inline_timeShift } true; 297#L165-2 [2022-02-21 04:17:10,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:10,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:10,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:10,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881052831] [2022-02-21 04:17:10,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:10,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:10,617 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:10,635 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:10,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:10,636 INFO L85 PathProgramCache]: Analyzing trace with hash 956659802, now seen corresponding path program 1 times [2022-02-21 04:17:10,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:10,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793482318] [2022-02-21 04:17:10,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:10,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:10,660 INFO L290 TraceCheckUtils]: 0: Hoare triple {592#true} assume !false; {592#true} is VALID [2022-02-21 04:17:10,660 INFO L290 TraceCheckUtils]: 1: Hoare triple {592#true} assume test_~splverifierCounter~0#1 < 4; {592#true} is VALID [2022-02-21 04:17:10,661 INFO L290 TraceCheckUtils]: 2: Hoare triple {592#true} test_~tmp~1#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {592#true} is VALID [2022-02-21 04:17:10,661 INFO L290 TraceCheckUtils]: 3: Hoare triple {592#true} assume !(0 != test_~tmp~1#1); {592#true} is VALID [2022-02-21 04:17:10,663 INFO L290 TraceCheckUtils]: 4: Hoare triple {592#true} test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {592#true} is VALID [2022-02-21 04:17:10,663 INFO L290 TraceCheckUtils]: 5: Hoare triple {592#true} assume !(0 != test_~tmp___0~0#1); {592#true} is VALID [2022-02-21 04:17:10,663 INFO L290 TraceCheckUtils]: 6: Hoare triple {592#true} test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {592#true} is VALID [2022-02-21 04:17:10,663 INFO L290 TraceCheckUtils]: 7: Hoare triple {592#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {592#true} is VALID [2022-02-21 04:17:10,663 INFO L290 TraceCheckUtils]: 8: Hoare triple {592#true} assume { :end_inline_startSystem } true; {592#true} is VALID [2022-02-21 04:17:10,664 INFO L290 TraceCheckUtils]: 9: Hoare triple {592#true} assume { :begin_inline_timeShift } true; {592#true} is VALID [2022-02-21 04:17:10,664 INFO L290 TraceCheckUtils]: 10: Hoare triple {592#true} assume !(0 != ~pumpRunning~0); {594#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:10,665 INFO L290 TraceCheckUtils]: 11: Hoare triple {594#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {594#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:10,665 INFO L290 TraceCheckUtils]: 12: Hoare triple {594#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {593#false} is VALID [2022-02-21 04:17:10,665 INFO L290 TraceCheckUtils]: 13: Hoare triple {593#false} assume { :end_inline_processEnvironment__wrappee__base } true; {593#false} is VALID [2022-02-21 04:17:10,665 INFO L290 TraceCheckUtils]: 14: Hoare triple {593#false} assume { :end_inline_processEnvironment } true; {593#false} is VALID [2022-02-21 04:17:10,666 INFO L290 TraceCheckUtils]: 15: Hoare triple {593#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; {593#false} is VALID [2022-02-21 04:17:10,666 INFO L290 TraceCheckUtils]: 16: Hoare triple {593#false} __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; {593#false} is VALID [2022-02-21 04:17:10,666 INFO L290 TraceCheckUtils]: 17: Hoare triple {593#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {593#false} is VALID [2022-02-21 04:17:10,666 INFO L290 TraceCheckUtils]: 18: Hoare triple {593#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {593#false} is VALID [2022-02-21 04:17:10,666 INFO L290 TraceCheckUtils]: 19: Hoare triple {593#false} assume { :end_inline_timeShift } true; {593#false} is VALID [2022-02-21 04:17:10,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:17:10,667 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:10,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793482318] [2022-02-21 04:17:10,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793482318] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:10,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:10,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:10,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937734135] [2022-02-21 04:17:10,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:10,668 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:10,668 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:10,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:10,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:10,670 INFO L87 Difference]: Start difference. First operand 111 states and 145 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:10,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:10,883 INFO L93 Difference]: Finished difference Result 173 states and 220 transitions. [2022-02-21 04:17:10,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:10,883 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:10,898 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:10,899 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 173 states and 220 transitions. [2022-02-21 04:17:10,904 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2022-02-21 04:17:10,909 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 173 states to 173 states and 220 transitions. [2022-02-21 04:17:10,909 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 173 [2022-02-21 04:17:10,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 173 [2022-02-21 04:17:10,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 173 states and 220 transitions. [2022-02-21 04:17:10,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:10,914 INFO L681 BuchiCegarLoop]: Abstraction has 173 states and 220 transitions. [2022-02-21 04:17:10,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states and 220 transitions. [2022-02-21 04:17:10,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-02-21 04:17:10,922 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:10,923 INFO L82 GeneralOperation]: Start isEquivalent. First operand 173 states and 220 transitions. Second operand has 173 states, 173 states have (on average 1.2716763005780347) internal successors, (220), 172 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:10,923 INFO L74 IsIncluded]: Start isIncluded. First operand 173 states and 220 transitions. Second operand has 173 states, 173 states have (on average 1.2716763005780347) internal successors, (220), 172 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:10,924 INFO L87 Difference]: Start difference. First operand 173 states and 220 transitions. Second operand has 173 states, 173 states have (on average 1.2716763005780347) internal successors, (220), 172 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:10,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:10,928 INFO L93 Difference]: Finished difference Result 173 states and 220 transitions. [2022-02-21 04:17:10,931 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 220 transitions. [2022-02-21 04:17:10,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:10,938 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:10,939 INFO L74 IsIncluded]: Start isIncluded. First operand has 173 states, 173 states have (on average 1.2716763005780347) internal successors, (220), 172 states have internal predecessors, (220), 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 173 states and 220 transitions. [2022-02-21 04:17:10,940 INFO L87 Difference]: Start difference. First operand has 173 states, 173 states have (on average 1.2716763005780347) internal successors, (220), 172 states have internal predecessors, (220), 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 173 states and 220 transitions. [2022-02-21 04:17:10,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:10,945 INFO L93 Difference]: Finished difference Result 173 states and 220 transitions. [2022-02-21 04:17:10,945 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 220 transitions. [2022-02-21 04:17:10,945 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:10,946 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:10,946 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:10,946 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:10,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 173 states have (on average 1.2716763005780347) internal successors, (220), 172 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:10,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 220 transitions. [2022-02-21 04:17:10,952 INFO L704 BuchiCegarLoop]: Abstraction has 173 states and 220 transitions. [2022-02-21 04:17:10,952 INFO L587 BuchiCegarLoop]: Abstraction has 173 states and 220 transitions. [2022-02-21 04:17:10,952 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:10,953 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173 states and 220 transitions. [2022-02-21 04:17:10,954 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2022-02-21 04:17:10,954 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:10,955 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:10,955 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:10,955 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:10,956 INFO L791 eck$LassoCheckResult]: Stem: 887#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 828#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 829#L534 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 874#L527 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 779#L542 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 780#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 847#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 811#L165-2 [2022-02-21 04:17:10,956 INFO L793 eck$LassoCheckResult]: Loop: 811#L165-2 assume !false; 812#L166 assume test_~splverifierCounter~0#1 < 4; 808#L167 test_~tmp~1#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 768#L175 assume !(0 != test_~tmp~1#1); 770#L175-2 test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 863#L185 assume !(0 != test_~tmp___0~0#1); 838#L185-2 test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 839#L195 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 883#L404 assume { :end_inline_startSystem } true; 814#L203-2 assume { :begin_inline_timeShift } true; 862#L237 assume !(0 != ~pumpRunning~0); 830#L237-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 831#L269 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~3#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 855#L492 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 886#L497 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 800#L389 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 801#L389-2 isHighWaterLevel_~retValue_acc~3#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~3#1; 824#L395 processEnvironment_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret9#1;havoc processEnvironment_#t~ret9#1; 851#L273 assume !(0 != processEnvironment_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 853#L261 assume { :end_inline_processEnvironment__wrappee__base } true; 835#L269-1 assume { :end_inline_processEnvironment } true; 816#L244-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 817#L452-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 825#L922 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 857#L928-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 846#L254 assume { :end_inline_timeShift } true; 811#L165-2 [2022-02-21 04:17:10,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:10,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:10,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:10,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004879978] [2022-02-21 04:17:10,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:10,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:10,973 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:10,988 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:10,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:10,989 INFO L85 PathProgramCache]: Analyzing trace with hash 20553762, now seen corresponding path program 1 times [2022-02-21 04:17:10,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:10,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912431775] [2022-02-21 04:17:10,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:10,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:11,000 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:11,008 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:11,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:11,009 INFO L85 PathProgramCache]: Analyzing trace with hash -105887514, now seen corresponding path program 1 times [2022-02-21 04:17:11,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:11,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013816452] [2022-02-21 04:17:11,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:11,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:11,070 INFO L290 TraceCheckUtils]: 0: Hoare triple {1294#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,071 INFO L290 TraceCheckUtils]: 1: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,072 INFO L290 TraceCheckUtils]: 2: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,072 INFO L290 TraceCheckUtils]: 3: Hoare triple {1296#(= ~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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,072 INFO L290 TraceCheckUtils]: 4: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,073 INFO L290 TraceCheckUtils]: 5: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,073 INFO L290 TraceCheckUtils]: 6: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,074 INFO L290 TraceCheckUtils]: 7: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume !false; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,074 INFO L290 TraceCheckUtils]: 8: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,075 INFO L290 TraceCheckUtils]: 9: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} test_~tmp~1#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,075 INFO L290 TraceCheckUtils]: 10: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~1#1); {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,076 INFO L290 TraceCheckUtils]: 11: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,076 INFO L290 TraceCheckUtils]: 12: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~0#1); {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,077 INFO L290 TraceCheckUtils]: 13: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,077 INFO L290 TraceCheckUtils]: 14: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,077 INFO L290 TraceCheckUtils]: 15: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume { :end_inline_startSystem } true; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,078 INFO L290 TraceCheckUtils]: 16: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,078 INFO L290 TraceCheckUtils]: 17: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,079 INFO L290 TraceCheckUtils]: 18: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,079 INFO L290 TraceCheckUtils]: 19: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~3#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,080 INFO L290 TraceCheckUtils]: 20: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,080 INFO L290 TraceCheckUtils]: 21: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,081 INFO L290 TraceCheckUtils]: 22: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,081 INFO L290 TraceCheckUtils]: 23: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_~retValue_acc~3#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~3#1; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,082 INFO L290 TraceCheckUtils]: 24: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} processEnvironment_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret9#1;havoc processEnvironment_#t~ret9#1; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,082 INFO L290 TraceCheckUtils]: 25: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume !(0 != processEnvironment_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,082 INFO L290 TraceCheckUtils]: 26: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,083 INFO L290 TraceCheckUtils]: 27: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {1296#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:11,083 INFO L290 TraceCheckUtils]: 28: Hoare triple {1296#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; {1297#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:17:11,084 INFO L290 TraceCheckUtils]: 29: Hoare triple {1297#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; {1298#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8#1| 0)} is VALID [2022-02-21 04:17:11,084 INFO L290 TraceCheckUtils]: 30: Hoare triple {1298#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {1295#false} is VALID [2022-02-21 04:17:11,085 INFO L290 TraceCheckUtils]: 31: Hoare triple {1295#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {1295#false} is VALID [2022-02-21 04:17:11,085 INFO L290 TraceCheckUtils]: 32: Hoare triple {1295#false} assume { :end_inline_timeShift } true; {1295#false} is VALID [2022-02-21 04:17:11,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:17:11,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:11,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013816452] [2022-02-21 04:17:11,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013816452] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:11,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:11,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:11,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880263146] [2022-02-21 04:17:11,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:11,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:11,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:11,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:11,382 INFO L87 Difference]: Start difference. First operand 173 states and 220 transitions. cyclomatic complexity: 49 Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:12,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:12,054 INFO L93 Difference]: Finished difference Result 605 states and 765 transitions. [2022-02-21 04:17:12,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:12,054 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:12,082 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:12,083 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 605 states and 765 transitions. [2022-02-21 04:17:12,106 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 446 [2022-02-21 04:17:12,128 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 605 states to 605 states and 765 transitions. [2022-02-21 04:17:12,129 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 605 [2022-02-21 04:17:12,129 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 605 [2022-02-21 04:17:12,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 605 states and 765 transitions. [2022-02-21 04:17:12,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:12,131 INFO L681 BuchiCegarLoop]: Abstraction has 605 states and 765 transitions. [2022-02-21 04:17:12,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states and 765 transitions. [2022-02-21 04:17:12,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 339. [2022-02-21 04:17:12,143 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:12,144 INFO L82 GeneralOperation]: Start isEquivalent. First operand 605 states and 765 transitions. Second operand has 339 states, 339 states have (on average 1.2536873156342183) internal successors, (425), 338 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:12,145 INFO L74 IsIncluded]: Start isIncluded. First operand 605 states and 765 transitions. Second operand has 339 states, 339 states have (on average 1.2536873156342183) internal successors, (425), 338 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:12,146 INFO L87 Difference]: Start difference. First operand 605 states and 765 transitions. Second operand has 339 states, 339 states have (on average 1.2536873156342183) internal successors, (425), 338 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:12,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:12,168 INFO L93 Difference]: Finished difference Result 605 states and 765 transitions. [2022-02-21 04:17:12,168 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 765 transitions. [2022-02-21 04:17:12,169 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:12,170 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:12,171 INFO L74 IsIncluded]: Start isIncluded. First operand has 339 states, 339 states have (on average 1.2536873156342183) internal successors, (425), 338 states have internal predecessors, (425), 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 605 states and 765 transitions. [2022-02-21 04:17:12,172 INFO L87 Difference]: Start difference. First operand has 339 states, 339 states have (on average 1.2536873156342183) internal successors, (425), 338 states have internal predecessors, (425), 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 605 states and 765 transitions. [2022-02-21 04:17:12,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:12,195 INFO L93 Difference]: Finished difference Result 605 states and 765 transitions. [2022-02-21 04:17:12,195 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 765 transitions. [2022-02-21 04:17:12,196 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:12,196 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:12,196 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:12,196 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:12,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 339 states have (on average 1.2536873156342183) internal successors, (425), 338 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:12,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 425 transitions. [2022-02-21 04:17:12,207 INFO L704 BuchiCegarLoop]: Abstraction has 339 states and 425 transitions. [2022-02-21 04:17:12,207 INFO L587 BuchiCegarLoop]: Abstraction has 339 states and 425 transitions. [2022-02-21 04:17:12,207 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:17:12,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 339 states and 425 transitions. [2022-02-21 04:17:12,209 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 244 [2022-02-21 04:17:12,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:12,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:12,210 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:12,210 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:12,210 INFO L791 eck$LassoCheckResult]: Stem: 2042#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1972#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1973#L534 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2019#L527 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1923#L542 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1924#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1990#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2040#L165-2 [2022-02-21 04:17:12,211 INFO L793 eck$LassoCheckResult]: Loop: 2040#L165-2 assume !false; 2188#L166 assume test_~splverifierCounter~0#1 < 4; 2189#L167 test_~tmp~1#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 2248#L175 assume !(0 != test_~tmp~1#1); 2246#L175-2 test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 2245#L185 assume !(0 != test_~tmp___0~0#1); 2241#L185-2 test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 2239#L195 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2237#L404 assume { :end_inline_startSystem } true; 2222#L203-2 assume { :begin_inline_timeShift } true; 2220#L237 assume !(0 != ~pumpRunning~0); 2214#L237-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2216#L269 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~3#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 2208#L492 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 2212#L497 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 2210#L389 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2209#L389-2 isHighWaterLevel_~retValue_acc~3#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~3#1; 2015#L395 processEnvironment_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret9#1;havoc processEnvironment_#t~ret9#1; 1995#L273 assume !(0 != processEnvironment_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1997#L261 assume { :end_inline_processEnvironment__wrappee__base } true; 1979#L269-1 assume { :end_inline_processEnvironment } true; 2026#L244-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 1968#L452-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 1969#L922 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 2045#L484 __utac_acc__Specification3_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1; 2046#L928 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 2191#L928-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2190#L254 assume { :end_inline_timeShift } true; 2040#L165-2 [2022-02-21 04:17:12,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:12,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:17:12,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:12,212 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141169920] [2022-02-21 04:17:12,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:12,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:12,223 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:12,235 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:12,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:12,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1721419275, now seen corresponding path program 1 times [2022-02-21 04:17:12,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:12,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110809235] [2022-02-21 04:17:12,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:12,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:12,243 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:12,250 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:12,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:12,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1322566073, now seen corresponding path program 1 times [2022-02-21 04:17:12,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:12,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907790869] [2022-02-21 04:17:12,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:12,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:12,264 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:12,278 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:15,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:15 BoogieIcfgContainer [2022-02-21 04:17:15,303 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:15,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:15,304 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:15,304 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:15,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:09" (3/4) ... [2022-02-21 04:17:15,307 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:15,349 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:15,349 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:15,350 INFO L158 Benchmark]: Toolchain (without parser) took 6979.54ms. Allocated memory was 92.3MB in the beginning and 182.5MB in the end (delta: 90.2MB). Free memory was 59.0MB in the beginning and 128.6MB in the end (delta: -69.6MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2022-02-21 04:17:15,351 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 92.3MB. Free memory was 47.3MB in the beginning and 47.3MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:15,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 580.35ms. Allocated memory is still 92.3MB. Free memory was 58.8MB in the beginning and 56.7MB in the end (delta: 2.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:17:15,351 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.03ms. Allocated memory is still 92.3MB. Free memory was 56.7MB in the beginning and 53.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:15,352 INFO L158 Benchmark]: Boogie Preprocessor took 56.05ms. Allocated memory is still 92.3MB. Free memory was 53.1MB in the beginning and 51.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:15,355 INFO L158 Benchmark]: RCFGBuilder took 570.48ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 50.7MB in the beginning and 78.5MB in the end (delta: -27.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-02-21 04:17:15,356 INFO L158 Benchmark]: BuchiAutomizer took 5639.55ms. Allocated memory was 119.5MB in the beginning and 182.5MB in the end (delta: 62.9MB). Free memory was 78.5MB in the beginning and 131.7MB in the end (delta: -53.2MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2022-02-21 04:17:15,356 INFO L158 Benchmark]: Witness Printer took 46.03ms. Allocated memory is still 182.5MB. Free memory was 131.7MB in the beginning and 128.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:15,357 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 0.20ms. Allocated memory is still 92.3MB. Free memory was 47.3MB in the beginning and 47.3MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 580.35ms. Allocated memory is still 92.3MB. Free memory was 58.8MB in the beginning and 56.7MB in the end (delta: 2.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.03ms. Allocated memory is still 92.3MB. Free memory was 56.7MB in the beginning and 53.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.05ms. Allocated memory is still 92.3MB. Free memory was 53.1MB in the beginning and 51.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 570.48ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 50.7MB in the beginning and 78.5MB in the end (delta: -27.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 5639.55ms. Allocated memory was 119.5MB in the beginning and 182.5MB in the end (delta: 62.9MB). Free memory was 78.5MB in the beginning and 131.7MB in the end (delta: -53.2MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. * Witness Printer took 46.03ms. Allocated memory is still 182.5MB. Free memory was 131.7MB in the beginning and 128.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 339 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.9s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 266 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 339 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 789 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 789 mSDsluCounter, 1241 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 735 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 107 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 506 mSDtfsCounter, 107 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 165]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, retValue_acc=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@84854b0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@230d098b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ddf0b5=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cd6da45=0, methaneLevelCritical=0, retValue_acc=0, tmp___0=1, retValue_acc=1, \result=0, retValue_acc=1, \result=1, \result=1, tmp=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45c1f38e=0, tmp___2=29, tmp___1=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64ff41a1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fd7e676=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b45a34e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b2b0b6d=0, tmp=1, \result=0, tmp=0, head=0, \result=1, tmp___1=0, retValue_acc=1, NULL=0, waterLevel=1, systemActive=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ace92a1=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 165]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L409] int waterLevel = 1; [L410] int methaneLevelCritical = 0; [L716] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L156] int splverifierCounter ; [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L160] int tmp___2 ; [L163] splverifierCounter = 0 Loop: [L165] COND TRUE 1 [L167] COND TRUE splverifierCounter < 4 [L173] tmp = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp)) [L183] tmp___0 = __VERIFIER_nondet_int() [L185] COND FALSE !(\read(tmp___0)) [L193] tmp___2 = __VERIFIER_nondet_int() [L195] COND TRUE \read(tmp___2) [L197] CALL startSystem() [L403] systemActive = 1 [L197] RET startSystem() [L210] CALL timeShift() [L237] COND FALSE !(\read(pumpRunning)) [L244] COND TRUE \read(systemActive) [L246] CALL processEnvironment() [L266] int tmp ; [L269] COND TRUE ! pumpRunning [L271] CALL, EXPR isHighWaterLevel() [L381] int retValue_acc ; [L382] int tmp ; [L383] int tmp___0 ; [L387] CALL, EXPR isHighWaterSensorDry() [L489] int retValue_acc ; [L492] COND TRUE waterLevel < 2 [L493] retValue_acc = 1 [L494] return (retValue_acc); [L387] RET, EXPR isHighWaterSensorDry() [L387] tmp = isHighWaterSensorDry() [L389] COND TRUE \read(tmp) [L390] tmp___0 = 0 [L394] retValue_acc = tmp___0 [L395] return (retValue_acc); [L271] RET, EXPR isHighWaterLevel() [L271] tmp = isHighWaterLevel() [L273] COND FALSE !(\read(tmp)) [L279] FCALL processEnvironment__wrappee__base() [L246] RET processEnvironment() [L252] CALL __utac_acc__Specification3_spec__1() [L914] int tmp ; [L915] int tmp___0 ; [L916] int tmp___1 ; [L920] CALL, EXPR isMethaneLevelCritical() [L448] int retValue_acc ; [L451] retValue_acc = methaneLevelCritical [L452] return (retValue_acc); [L920] RET, EXPR isMethaneLevelCritical() [L920] tmp = isMethaneLevelCritical() [L922] COND FALSE !(\read(tmp)) [L926] CALL, EXPR getWaterLevel() [L480] int retValue_acc ; [L483] retValue_acc = waterLevel [L484] return (retValue_acc); [L926] RET, EXPR getWaterLevel() [L926] tmp___0 = getWaterLevel() [L928] COND FALSE !(tmp___0 == 2) [L252] RET __utac_acc__Specification3_spec__1() [L210] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:15,411 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)