./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product08.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_product08.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 f2656148601f1263a8e24b75d9059e08eab7a1ff3676ef4340768cc6aab19236 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:40,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:40,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:40,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:40,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:40,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:40,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:40,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:40,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:40,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:40,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:40,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:40,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:40,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:40,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:40,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:40,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:40,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:40,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:40,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:40,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:40,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:40,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:40,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:40,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:40,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:40,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:40,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:40,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:40,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:40,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:40,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:40,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:40,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:40,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:40,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:40,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:40,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:40,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:40,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:40,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:40,250 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:40,285 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:40,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:40,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:40,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:40,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:40,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:40,287 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:40,288 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:40,288 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:40,288 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:40,289 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:40,289 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:40,289 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:40,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:40,289 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:40,290 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:40,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:40,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:40,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:40,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:40,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:40,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:40,291 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:40,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:40,291 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:40,292 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:40,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:40,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:40,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:40,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:40,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:40,294 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:40,294 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2656148601f1263a8e24b75d9059e08eab7a1ff3676ef4340768cc6aab19236 [2022-02-21 04:16:40,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:40,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:40,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:40,551 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:40,555 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:40,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2022-02-21 04:16:40,616 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bd30d946/02b0246bcaa141df84364264d91593f4/FLAG88e3b0b02 [2022-02-21 04:16:41,039 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:41,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2022-02-21 04:16:41,051 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bd30d946/02b0246bcaa141df84364264d91593f4/FLAG88e3b0b02 [2022-02-21 04:16:41,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bd30d946/02b0246bcaa141df84364264d91593f4 [2022-02-21 04:16:41,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:41,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:41,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:41,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:41,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:41,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:41" (1/1) ... [2022-02-21 04:16:41,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fb8f6f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:41, skipping insertion in model container [2022-02-21 04:16:41,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:41" (1/1) ... [2022-02-21 04:16:41,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:41,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:41,677 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_product08.cil.c[13019,13032] [2022-02-21 04:16:41,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:41,713 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:41,801 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_product08.cil.c[13019,13032] [2022-02-21 04:16:41,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:41,858 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:41,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:41 WrapperNode [2022-02-21 04:16:41,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:41,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:41,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:41,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:41,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:41" (1/1) ... [2022-02-21 04:16:41,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:41" (1/1) ... [2022-02-21 04:16:41,929 INFO L137 Inliner]: procedures = 52, calls = 152, calls flagged for inlining = 49, calls inlined = 53, statements flattened = 402 [2022-02-21 04:16:41,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:41,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:41,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:41,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:41,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:41" (1/1) ... [2022-02-21 04:16:41,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:41" (1/1) ... [2022-02-21 04:16:41,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:41" (1/1) ... [2022-02-21 04:16:41,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:41" (1/1) ... [2022-02-21 04:16:41,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:41" (1/1) ... [2022-02-21 04:16:41,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:41" (1/1) ... [2022-02-21 04:16:41,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:41" (1/1) ... [2022-02-21 04:16:41,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:41,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:41,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:41,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:41,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:41" (1/1) ... [2022-02-21 04:16:41,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:42,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:42,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:16:42,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:16:42,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:42,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:42,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:42,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:42,123 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:42,124 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:42,526 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:42,532 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:42,533 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:42,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:42 BoogieIcfgContainer [2022-02-21 04:16:42,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:42,535 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:42,535 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:42,538 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:42,539 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:42,539 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:41" (1/3) ... [2022-02-21 04:16:42,540 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2451ecc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:42, skipping insertion in model container [2022-02-21 04:16:42,540 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:42,540 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:41" (2/3) ... [2022-02-21 04:16:42,541 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2451ecc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:42, skipping insertion in model container [2022-02-21 04:16:42,541 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:42,541 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:42" (3/3) ... [2022-02-21 04:16:42,542 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2022-02-21 04:16:42,580 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:42,580 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:42,580 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:42,581 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:42,581 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:42,581 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:42,581 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:42,581 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:42,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:42,635 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-02-21 04:16:42,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:42,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:42,641 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:42,641 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:42,641 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:42,643 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:42,658 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-02-21 04:16:42,658 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:42,659 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:42,659 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:42,660 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:42,664 INFO L791 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 31#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 9#L804true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 71#L797true 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; 65#L812true main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 33#L899true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 76#L876true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 27#L561-2true [2022-02-21 04:16:42,665 INFO L793 eck$LassoCheckResult]: Loop: 27#L561-2true assume !false; 68#L562true assume test_~splverifierCounter~0#1 < 4; 53#L563true test_~tmp~4#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 97#L571true assume !(0 != test_~tmp~4#1); 25#L571-2true test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 109#L581true assume !(0 != test_~tmp___0~1#1); 93#L581-2true test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 92#L591true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 51#L599true assume !(0 != test_~tmp___1~1#1); 64#L599-2true assume { :begin_inline_timeShift } true; 69#L630true assume !(0 != ~pumpRunning~0); 42#L630-2true assume !(0 != ~systemActive~0); 55#L637-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 81#L501-1true __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 6#L63true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 102#L69-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 99#L647true assume { :end_inline_timeShift } true; 27#L561-2true [2022-02-21 04:16:42,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:42,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:16:42,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:42,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417310922] [2022-02-21 04:16:42,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:42,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:42,792 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:42,854 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:42,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:42,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1173736865, now seen corresponding path program 1 times [2022-02-21 04:16:42,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:42,860 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323810162] [2022-02-21 04:16:42,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:42,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:42,880 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:42,888 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:42,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:42,890 INFO L85 PathProgramCache]: Analyzing trace with hash 242055261, now seen corresponding path program 1 times [2022-02-21 04:16:42,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:42,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325017555] [2022-02-21 04:16:42,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:42,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:43,076 INFO L290 TraceCheckUtils]: 0: Hoare triple {115#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; {117#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:43,085 INFO L290 TraceCheckUtils]: 1: Hoare triple {117#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; {117#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:43,086 INFO L290 TraceCheckUtils]: 2: Hoare triple {117#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {117#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:43,086 INFO L290 TraceCheckUtils]: 3: Hoare triple {117#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; {118#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:43,087 INFO L290 TraceCheckUtils]: 4: Hoare triple {118#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; {119#(= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)} is VALID [2022-02-21 04:16:43,088 INFO L290 TraceCheckUtils]: 5: Hoare triple {119#(= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)} assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:43,089 INFO L290 TraceCheckUtils]: 6: Hoare triple {120#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:43,090 INFO L290 TraceCheckUtils]: 7: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !false; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:43,090 INFO L290 TraceCheckUtils]: 8: Hoare triple {120#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:43,093 INFO L290 TraceCheckUtils]: 9: Hoare triple {120#(not (= 0 ~systemActive~0))} test_~tmp~4#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:43,094 INFO L290 TraceCheckUtils]: 10: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~4#1); {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:43,095 INFO L290 TraceCheckUtils]: 11: Hoare triple {120#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:43,095 INFO L290 TraceCheckUtils]: 12: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:43,096 INFO L290 TraceCheckUtils]: 13: Hoare triple {120#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:43,097 INFO L290 TraceCheckUtils]: 14: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:43,097 INFO L290 TraceCheckUtils]: 15: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___1~1#1); {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:43,098 INFO L290 TraceCheckUtils]: 16: Hoare triple {120#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:43,098 INFO L290 TraceCheckUtils]: 17: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:43,099 INFO L290 TraceCheckUtils]: 18: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {116#false} is VALID [2022-02-21 04:16:43,099 INFO L290 TraceCheckUtils]: 19: Hoare triple {116#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {116#false} is VALID [2022-02-21 04:16:43,100 INFO L290 TraceCheckUtils]: 20: Hoare triple {116#false} __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; {116#false} is VALID [2022-02-21 04:16:43,100 INFO L290 TraceCheckUtils]: 21: Hoare triple {116#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; {116#false} is VALID [2022-02-21 04:16:43,100 INFO L290 TraceCheckUtils]: 22: Hoare triple {116#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {116#false} is VALID [2022-02-21 04:16:43,101 INFO L290 TraceCheckUtils]: 23: Hoare triple {116#false} assume { :end_inline_timeShift } true; {116#false} is VALID [2022-02-21 04:16:43,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:43,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:43,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325017555] [2022-02-21 04:16:43,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325017555] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:43,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:43,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:43,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074449227] [2022-02-21 04:16:43,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:43,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:43,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:43,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:43,301 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:44,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:44,174 INFO L93 Difference]: Finished difference Result 366 states and 467 transitions. [2022-02-21 04:16:44,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:16:44,175 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:44,199 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:44,203 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 366 states and 467 transitions. [2022-02-21 04:16:44,224 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 236 [2022-02-21 04:16:44,240 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 366 states to 326 states and 427 transitions. [2022-02-21 04:16:44,241 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 326 [2022-02-21 04:16:44,241 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 326 [2022-02-21 04:16:44,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 326 states and 427 transitions. [2022-02-21 04:16:44,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:44,243 INFO L681 BuchiCegarLoop]: Abstraction has 326 states and 427 transitions. [2022-02-21 04:16:44,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states and 427 transitions. [2022-02-21 04:16:44,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 152. [2022-02-21 04:16:44,281 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:44,282 INFO L82 GeneralOperation]: Start isEquivalent. First operand 326 states and 427 transitions. Second operand has 152 states, 152 states have (on average 1.3157894736842106) internal successors, (200), 151 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:44,284 INFO L74 IsIncluded]: Start isIncluded. First operand 326 states and 427 transitions. Second operand has 152 states, 152 states have (on average 1.3157894736842106) internal successors, (200), 151 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:44,286 INFO L87 Difference]: Start difference. First operand 326 states and 427 transitions. Second operand has 152 states, 152 states have (on average 1.3157894736842106) internal successors, (200), 151 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:44,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:44,301 INFO L93 Difference]: Finished difference Result 326 states and 427 transitions. [2022-02-21 04:16:44,303 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 427 transitions. [2022-02-21 04:16:44,310 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:44,310 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:44,311 INFO L74 IsIncluded]: Start isIncluded. First operand has 152 states, 152 states have (on average 1.3157894736842106) internal successors, (200), 151 states have internal predecessors, (200), 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 326 states and 427 transitions. [2022-02-21 04:16:44,311 INFO L87 Difference]: Start difference. First operand has 152 states, 152 states have (on average 1.3157894736842106) internal successors, (200), 151 states have internal predecessors, (200), 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 326 states and 427 transitions. [2022-02-21 04:16:44,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:44,322 INFO L93 Difference]: Finished difference Result 326 states and 427 transitions. [2022-02-21 04:16:44,322 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 427 transitions. [2022-02-21 04:16:44,322 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:44,323 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:44,323 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:44,323 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:44,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 152 states have (on average 1.3157894736842106) internal successors, (200), 151 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:44,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 200 transitions. [2022-02-21 04:16:44,328 INFO L704 BuchiCegarLoop]: Abstraction has 152 states and 200 transitions. [2022-02-21 04:16:44,328 INFO L587 BuchiCegarLoop]: Abstraction has 152 states and 200 transitions. [2022-02-21 04:16:44,329 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:44,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 200 transitions. [2022-02-21 04:16:44,330 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 109 [2022-02-21 04:16:44,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:44,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:44,331 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:44,331 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:44,331 INFO L791 eck$LassoCheckResult]: Stem: 578#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 564#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 503#L804 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 504#L797 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; 507#L812 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 508#L899 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 541#L876 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 542#L561-2 [2022-02-21 04:16:44,332 INFO L793 eck$LassoCheckResult]: Loop: 542#L561-2 assume !false; 519#L562 assume test_~splverifierCounter~0#1 < 4; 520#L563 test_~tmp~4#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 580#L571 assume !(0 != test_~tmp~4#1); 553#L571-2 test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 554#L581 assume !(0 != test_~tmp___0~1#1); 563#L581-2 test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 571#L591 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 528#L775 assume { :end_inline_startSystem } true; 505#L599-2 assume { :begin_inline_timeShift } true; 506#L630 assume !(0 != ~pumpRunning~0); 522#L630-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 575#L662 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 567#L654-1 assume { :end_inline_processEnvironment__wrappee__base } true; 524#L662-1 assume { :end_inline_processEnvironment } true; 525#L637-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 552#L501-1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 499#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 500#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 582#L647 assume { :end_inline_timeShift } true; 542#L561-2 [2022-02-21 04:16:44,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:44,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:16:44,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:44,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919338073] [2022-02-21 04:16:44,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:44,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:44,364 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:44,392 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:44,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:44,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1877291397, now seen corresponding path program 1 times [2022-02-21 04:16:44,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:44,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647635870] [2022-02-21 04:16:44,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:44,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:44,404 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:44,408 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:44,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:44,409 INFO L85 PathProgramCache]: Analyzing trace with hash 229293385, now seen corresponding path program 1 times [2022-02-21 04:16:44,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:44,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540257280] [2022-02-21 04:16:44,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:44,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:44,469 INFO L290 TraceCheckUtils]: 0: Hoare triple {1302#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,469 INFO L290 TraceCheckUtils]: 1: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,470 INFO L290 TraceCheckUtils]: 2: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,470 INFO L290 TraceCheckUtils]: 3: Hoare triple {1304#(= ~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; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,472 INFO L290 TraceCheckUtils]: 4: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,472 INFO L290 TraceCheckUtils]: 5: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,473 INFO L290 TraceCheckUtils]: 6: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,474 INFO L290 TraceCheckUtils]: 7: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} assume !false; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,474 INFO L290 TraceCheckUtils]: 8: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,475 INFO L290 TraceCheckUtils]: 9: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} test_~tmp~4#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,475 INFO L290 TraceCheckUtils]: 10: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~4#1); {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,476 INFO L290 TraceCheckUtils]: 11: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,476 INFO L290 TraceCheckUtils]: 12: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~1#1); {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,476 INFO L290 TraceCheckUtils]: 13: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,477 INFO L290 TraceCheckUtils]: 14: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,477 INFO L290 TraceCheckUtils]: 15: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} assume { :end_inline_startSystem } true; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,477 INFO L290 TraceCheckUtils]: 16: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,478 INFO L290 TraceCheckUtils]: 17: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,478 INFO L290 TraceCheckUtils]: 18: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,479 INFO L290 TraceCheckUtils]: 19: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,479 INFO L290 TraceCheckUtils]: 20: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,479 INFO L290 TraceCheckUtils]: 21: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {1304#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:44,480 INFO L290 TraceCheckUtils]: 22: Hoare triple {1304#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {1305#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:16:44,480 INFO L290 TraceCheckUtils]: 23: Hoare triple {1305#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; {1306#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~0#1| 0)} is VALID [2022-02-21 04:16:44,481 INFO L290 TraceCheckUtils]: 24: Hoare triple {1306#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~0#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; {1303#false} is VALID [2022-02-21 04:16:44,481 INFO L290 TraceCheckUtils]: 25: Hoare triple {1303#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {1303#false} is VALID [2022-02-21 04:16:44,481 INFO L290 TraceCheckUtils]: 26: Hoare triple {1303#false} assume { :end_inline_timeShift } true; {1303#false} is VALID [2022-02-21 04:16:44,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:44,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:44,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540257280] [2022-02-21 04:16:44,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540257280] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:44,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:44,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:16:44,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227939512] [2022-02-21 04:16:44,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:44,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:44,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:16:44,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:16:44,594 INFO L87 Difference]: Start difference. First operand 152 states and 200 transitions. cyclomatic complexity: 51 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:45,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:45,136 INFO L93 Difference]: Finished difference Result 520 states and 686 transitions. [2022-02-21 04:16:45,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:16:45,136 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:45,161 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:45,162 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 520 states and 686 transitions. [2022-02-21 04:16:45,181 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 392 [2022-02-21 04:16:45,199 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 520 states to 520 states and 686 transitions. [2022-02-21 04:16:45,199 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 520 [2022-02-21 04:16:45,200 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 520 [2022-02-21 04:16:45,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 520 states and 686 transitions. [2022-02-21 04:16:45,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:45,202 INFO L681 BuchiCegarLoop]: Abstraction has 520 states and 686 transitions. [2022-02-21 04:16:45,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states and 686 transitions. [2022-02-21 04:16:45,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 297. [2022-02-21 04:16:45,212 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:45,213 INFO L82 GeneralOperation]: Start isEquivalent. First operand 520 states and 686 transitions. Second operand has 297 states, 297 states have (on average 1.2962962962962963) internal successors, (385), 296 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:45,214 INFO L74 IsIncluded]: Start isIncluded. First operand 520 states and 686 transitions. Second operand has 297 states, 297 states have (on average 1.2962962962962963) internal successors, (385), 296 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:45,215 INFO L87 Difference]: Start difference. First operand 520 states and 686 transitions. Second operand has 297 states, 297 states have (on average 1.2962962962962963) internal successors, (385), 296 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:45,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:45,232 INFO L93 Difference]: Finished difference Result 520 states and 686 transitions. [2022-02-21 04:16:45,232 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 686 transitions. [2022-02-21 04:16:45,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:45,233 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:45,234 INFO L74 IsIncluded]: Start isIncluded. First operand has 297 states, 297 states have (on average 1.2962962962962963) internal successors, (385), 296 states have internal predecessors, (385), 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 520 states and 686 transitions. [2022-02-21 04:16:45,235 INFO L87 Difference]: Start difference. First operand has 297 states, 297 states have (on average 1.2962962962962963) internal successors, (385), 296 states have internal predecessors, (385), 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 520 states and 686 transitions. [2022-02-21 04:16:45,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:45,253 INFO L93 Difference]: Finished difference Result 520 states and 686 transitions. [2022-02-21 04:16:45,253 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 686 transitions. [2022-02-21 04:16:45,254 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:45,254 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:45,255 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:45,255 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:45,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 297 states have (on average 1.2962962962962963) internal successors, (385), 296 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:45,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 385 transitions. [2022-02-21 04:16:45,264 INFO L704 BuchiCegarLoop]: Abstraction has 297 states and 385 transitions. [2022-02-21 04:16:45,264 INFO L587 BuchiCegarLoop]: Abstraction has 297 states and 385 transitions. [2022-02-21 04:16:45,264 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:45,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 297 states and 385 transitions. [2022-02-21 04:16:45,266 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 218 [2022-02-21 04:16:45,266 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:45,266 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:45,266 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:45,267 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:45,267 INFO L791 eck$LassoCheckResult]: Stem: 1942#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1923#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 1847#L804 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1848#L797 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; 1851#L812 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 1852#L899 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 1893#L876 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1894#L561-2 [2022-02-21 04:16:45,267 INFO L793 eck$LassoCheckResult]: Loop: 1894#L561-2 assume !false; 1865#L562 assume test_~splverifierCounter~0#1 < 4; 1866#L563 test_~tmp~4#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 1946#L571 assume !(0 != test_~tmp~4#1); 1910#L571-2 test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 1911#L581 assume !(0 != test_~tmp___0~1#1); 1921#L581-2 test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1932#L591 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1880#L775 assume { :end_inline_startSystem } true; 1849#L599-2 assume { :begin_inline_timeShift } true; 1850#L630 assume !(0 != ~pumpRunning~0); 1868#L630-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1936#L662 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1926#L654-1 assume { :end_inline_processEnvironment__wrappee__base } true; 1870#L662-1 assume { :end_inline_processEnvironment } true; 1871#L637-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1966#L501-1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 1967#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 1948#L533 __utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 1949#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 1953#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1950#L647 assume { :end_inline_timeShift } true; 1894#L561-2 [2022-02-21 04:16:45,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:45,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:16:45,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:45,268 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909707189] [2022-02-21 04:16:45,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:45,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:45,279 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:45,289 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:45,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:45,289 INFO L85 PathProgramCache]: Analyzing trace with hash 192019704, now seen corresponding path program 1 times [2022-02-21 04:16:45,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:45,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541590140] [2022-02-21 04:16:45,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:45,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:45,296 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:45,300 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:45,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:45,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1308862396, now seen corresponding path program 1 times [2022-02-21 04:16:45,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:45,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177571525] [2022-02-21 04:16:45,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:45,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:45,316 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:45,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:45,335 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:47,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:47 BoogieIcfgContainer [2022-02-21 04:16:47,928 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:47,928 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:47,928 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:47,929 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:47,929 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:42" (3/4) ... [2022-02-21 04:16:47,931 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:47,971 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:47,971 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:47,973 INFO L158 Benchmark]: Toolchain (without parser) took 6556.54ms. Allocated memory was 104.9MB in the beginning and 153.1MB in the end (delta: 48.2MB). Free memory was 76.0MB in the beginning and 84.1MB in the end (delta: -8.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-02-21 04:16:47,973 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 104.9MB. Free memory was 59.1MB in the beginning and 59.0MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:47,973 INFO L158 Benchmark]: CACSL2BoogieTranslator took 442.77ms. Allocated memory is still 104.9MB. Free memory was 75.8MB in the beginning and 68.6MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:16:47,974 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.32ms. Allocated memory is still 104.9MB. Free memory was 68.4MB in the beginning and 65.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:47,974 INFO L158 Benchmark]: Boogie Preprocessor took 50.95ms. Allocated memory is still 104.9MB. Free memory was 65.1MB in the beginning and 63.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:47,975 INFO L158 Benchmark]: RCFGBuilder took 552.28ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 63.2MB in the beginning and 98.8MB in the end (delta: -35.6MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:47,976 INFO L158 Benchmark]: BuchiAutomizer took 5392.41ms. Allocated memory was 125.8MB in the beginning and 153.1MB in the end (delta: 27.3MB). Free memory was 98.8MB in the beginning and 86.1MB in the end (delta: 12.7MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. [2022-02-21 04:16:47,976 INFO L158 Benchmark]: Witness Printer took 43.11ms. Allocated memory is still 153.1MB. Free memory was 86.1MB in the beginning and 84.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:47,979 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 0.11ms. Allocated memory is still 104.9MB. Free memory was 59.1MB in the beginning and 59.0MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 442.77ms. Allocated memory is still 104.9MB. Free memory was 75.8MB in the beginning and 68.6MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.32ms. Allocated memory is still 104.9MB. Free memory was 68.4MB in the beginning and 65.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.95ms. Allocated memory is still 104.9MB. Free memory was 65.1MB in the beginning and 63.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 552.28ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 63.2MB in the beginning and 98.8MB in the end (delta: -35.6MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 5392.41ms. Allocated memory was 125.8MB in the beginning and 153.1MB in the end (delta: 27.3MB). Free memory was 98.8MB in the beginning and 86.1MB in the end (delta: 12.7MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. * Witness Printer took 43.11ms. Allocated memory is still 153.1MB. Free memory was 86.1MB in the beginning and 84.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 297 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.1s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 397 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 297 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1139 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1139 mSDsluCounter, 1659 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1359 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 300 mSDtfsCounter, 131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 561]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32aa2bdd=0, methaneLevelCritical=0, tmp___0=1, \result=0, tmp=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c014a18=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cc4651c=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7542b9ab=0, \result=1, retValue_acc=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57d8d263=0, tmp___1=0, tmp___2=29, tmp=1, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@543a6a55=0, tmp___1=0, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e100491=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76d6353a=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3803798b=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 561]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L458] int waterLevel = 1; [L459] int methaneLevelCritical = 0; [L623] int pumpRunning = 0; [L624] int systemActive = 1; [L817] int cleanupTimeShifts = 4; [L890] int retValue_acc ; [L891] int tmp ; [L895] FCALL select_helpers() [L896] FCALL select_features() [L897] CALL, EXPR valid_product() [L808] int retValue_acc ; [L811] retValue_acc = 1 [L812] return (retValue_acc); [L897] RET, EXPR valid_product() [L897] tmp = valid_product() [L899] COND TRUE \read(tmp) [L901] FCALL setup() [L902] CALL runTest() [L884] CALL test() [L552] int splverifierCounter ; [L553] int tmp ; [L554] int tmp___0 ; [L555] int tmp___1 ; [L556] int tmp___2 ; [L559] splverifierCounter = 0 Loop: [L561] COND TRUE 1 [L563] COND TRUE splverifierCounter < 4 [L569] tmp = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp)) [L579] tmp___0 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___0)) [L589] tmp___2 = __VERIFIER_nondet_int() [L591] COND TRUE \read(tmp___2) [L593] CALL startSystem() [L774] systemActive = 1 [L593] RET startSystem() [L608] CALL timeShift() [L630] COND FALSE !(\read(pumpRunning)) [L637] COND TRUE \read(systemActive) [L639] CALL processEnvironment() [L659] int tmp ; [L662] COND FALSE !(\read(pumpRunning)) [L677] FCALL processEnvironment__wrappee__base() [L639] RET processEnvironment() [L645] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L497] int retValue_acc ; [L500] retValue_acc = methaneLevelCritical [L501] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L529] int retValue_acc ; [L532] retValue_acc = waterLevel [L533] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L645] RET __utac_acc__Specification3_spec__1() [L608] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:48,028 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)