./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product55.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 1741a5d4e19b6faba6ff51056891b76c8b4c0acd4f550f71706571820842dcfa --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:05,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:05,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:05,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:05,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:05,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:05,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:05,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:05,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:05,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:05,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:05,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:05,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:05,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:05,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:05,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:05,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:05,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:05,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:05,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:05,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:05,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:05,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:05,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:05,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:05,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:05,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:05,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:05,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:05,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:05,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:05,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:05,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:05,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:05,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:05,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:05,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:05,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:05,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:05,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:05,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:05,246 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:05,269 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:05,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:05,269 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:05,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:05,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:05,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:05,276 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:05,277 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:05,277 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:05,277 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:05,277 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:05,277 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:05,277 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:05,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:05,278 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:05,278 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:05,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:05,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:05,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:05,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:05,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:05,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:05,279 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:05,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:05,279 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:05,280 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:05,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:05,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:05,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:05,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:05,281 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:05,282 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:05,282 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1741a5d4e19b6faba6ff51056891b76c8b4c0acd4f550f71706571820842dcfa [2022-02-21 04:18:05,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:05,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:05,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:05,487 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:05,488 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:05,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c [2022-02-21 04:18:05,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deaf2765d/84fdccce085c425ead188f8862822a9f/FLAG19c331fca [2022-02-21 04:18:05,914 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:05,915 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c [2022-02-21 04:18:05,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deaf2765d/84fdccce085c425ead188f8862822a9f/FLAG19c331fca [2022-02-21 04:18:06,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deaf2765d/84fdccce085c425ead188f8862822a9f [2022-02-21 04:18:06,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:06,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:06,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:06,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:06,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:06,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27548fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06, skipping insertion in model container [2022-02-21 04:18:06,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:06,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:06,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c[6887,6900] [2022-02-21 04:18:06,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:06,630 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:06,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c[6887,6900] [2022-02-21 04:18:06,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:06,750 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:06,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06 WrapperNode [2022-02-21 04:18:06,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:06,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:06,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:06,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:06,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,856 INFO L137 Inliner]: procedures = 57, calls = 160, calls flagged for inlining = 57, calls inlined = 139, statements flattened = 1008 [2022-02-21 04:18:06,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:06,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:06,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:06,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:06,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:06,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:06,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:06,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:06,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:06,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:07,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:18:07,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:18:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:07,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:07,176 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:07,177 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:07,911 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:07,939 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:07,940 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:07,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:07 BoogieIcfgContainer [2022-02-21 04:18:07,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:07,943 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:07,943 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:07,945 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:07,946 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:07,946 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:06" (1/3) ... [2022-02-21 04:18:07,947 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@596a8844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:07, skipping insertion in model container [2022-02-21 04:18:07,947 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:07,947 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06" (2/3) ... [2022-02-21 04:18:07,948 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@596a8844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:07, skipping insertion in model container [2022-02-21 04:18:07,948 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:07,948 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:07" (3/3) ... [2022-02-21 04:18:07,949 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product55.cil.c [2022-02-21 04:18:08,003 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:08,006 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:08,006 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:08,007 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:08,007 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:08,007 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:08,007 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:08,007 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:08,065 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 274 states, 273 states have (on average 1.36996336996337) internal successors, (374), 273 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:08,181 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 180 [2022-02-21 04:18:08,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:08,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:08,186 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:08,190 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:08,190 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:08,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 274 states, 273 states have (on average 1.36996336996337) internal successors, (374), 273 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:08,225 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 180 [2022-02-21 04:18:08,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:08,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:08,243 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:08,243 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:08,258 INFO L791 eck$LassoCheckResult]: Stem: 269#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 177#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret25#1, main_~retValue_acc~6#1, main_~tmp~7#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 25#L423true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 24#L416true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 275#L431true main_#t~ret25#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 235#L527true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 217#L504true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 176#L65-2true [2022-02-21 04:18:08,258 INFO L793 eck$LassoCheckResult]: Loop: 176#L65-2true assume !false; 41#L66true assume test_~splverifierCounter~0#1 < 4; 268#L67true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 198#L75true assume !(0 != test_~tmp~0#1); 116#L75-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 44#L85true assume !(0 != test_~tmp___0~0#1); 140#L85-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 228#L95true assume 0 != test_~tmp___2~0#1; 87#L101-2true assume { :begin_inline_timeShift } true; 37#L139true assume !(0 != ~pumpRunning~0); 157#L139-2true assume !(0 != ~systemActive~0); 159#L146-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 143#L982true __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 213#L380true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 144#L380-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 128#L156true assume { :end_inline_timeShift } true; 176#L65-2true [2022-02-21 04:18:08,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:08,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:18:08,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:08,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572498751] [2022-02-21 04:18:08,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:08,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:08,470 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:08,590 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:08,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:08,593 INFO L85 PathProgramCache]: Analyzing trace with hash -397646076, now seen corresponding path program 1 times [2022-02-21 04:18:08,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:08,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981699744] [2022-02-21 04:18:08,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:08,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:08,616 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:08,624 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:08,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:08,625 INFO L85 PathProgramCache]: Analyzing trace with hash 957773000, now seen corresponding path program 1 times [2022-02-21 04:18:08,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:08,626 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490026755] [2022-02-21 04:18:08,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:08,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:08,784 INFO L290 TraceCheckUtils]: 0: Hoare triple {282#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {284#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:08,785 INFO L290 TraceCheckUtils]: 1: Hoare triple {284#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret25#1, main_~retValue_acc~6#1, main_~tmp~7#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; {284#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:08,786 INFO L290 TraceCheckUtils]: 2: Hoare triple {284#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {284#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:08,786 INFO L290 TraceCheckUtils]: 3: Hoare triple {284#(= 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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; {285#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:08,787 INFO L290 TraceCheckUtils]: 4: Hoare triple {285#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret25#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret25#1;havoc main_#t~ret25#1; {286#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} is VALID [2022-02-21 04:18:08,787 INFO L290 TraceCheckUtils]: 5: Hoare triple {286#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,788 INFO L290 TraceCheckUtils]: 6: Hoare triple {287#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,789 INFO L290 TraceCheckUtils]: 7: Hoare triple {287#(not (= 0 ~systemActive~0))} assume !false; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,789 INFO L290 TraceCheckUtils]: 8: Hoare triple {287#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,789 INFO L290 TraceCheckUtils]: 9: Hoare triple {287#(not (= 0 ~systemActive~0))} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,790 INFO L290 TraceCheckUtils]: 10: Hoare triple {287#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0#1); {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,790 INFO L290 TraceCheckUtils]: 11: Hoare triple {287#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,791 INFO L290 TraceCheckUtils]: 12: Hoare triple {287#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,791 INFO L290 TraceCheckUtils]: 13: Hoare triple {287#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,792 INFO L290 TraceCheckUtils]: 14: Hoare triple {287#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,792 INFO L290 TraceCheckUtils]: 15: Hoare triple {287#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,793 INFO L290 TraceCheckUtils]: 16: Hoare triple {287#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,793 INFO L290 TraceCheckUtils]: 17: Hoare triple {287#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {283#false} is VALID [2022-02-21 04:18:08,793 INFO L290 TraceCheckUtils]: 18: Hoare triple {283#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; {283#false} is VALID [2022-02-21 04:18:08,793 INFO L290 TraceCheckUtils]: 19: Hoare triple {283#false} __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; {283#false} is VALID [2022-02-21 04:18:08,794 INFO L290 TraceCheckUtils]: 20: Hoare triple {283#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); {283#false} is VALID [2022-02-21 04:18:08,794 INFO L290 TraceCheckUtils]: 21: Hoare triple {283#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {283#false} is VALID [2022-02-21 04:18:08,794 INFO L290 TraceCheckUtils]: 22: Hoare triple {283#false} assume { :end_inline_timeShift } true; {283#false} is VALID [2022-02-21 04:18:08,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:08,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:08,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490026755] [2022-02-21 04:18:08,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490026755] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:08,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:08,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:08,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425403585] [2022-02-21 04:18:08,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:08,935 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:08,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:08,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:08,975 INFO L87 Difference]: Start difference. First operand has 274 states, 273 states have (on average 1.36996336996337) internal successors, (374), 273 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:10,316 INFO L93 Difference]: Finished difference Result 599 states and 797 transitions. [2022-02-21 04:18:10,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:10,317 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,340 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:10,349 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 599 states and 797 transitions. [2022-02-21 04:18:10,373 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 391 [2022-02-21 04:18:10,393 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 599 states to 569 states and 767 transitions. [2022-02-21 04:18:10,393 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 569 [2022-02-21 04:18:10,394 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 569 [2022-02-21 04:18:10,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 569 states and 767 transitions. [2022-02-21 04:18:10,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:10,396 INFO L681 BuchiCegarLoop]: Abstraction has 569 states and 767 transitions. [2022-02-21 04:18:10,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states and 767 transitions. [2022-02-21 04:18:10,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 313. [2022-02-21 04:18:10,462 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:10,463 INFO L82 GeneralOperation]: Start isEquivalent. First operand 569 states and 767 transitions. Second operand has 313 states, 313 states have (on average 1.3450479233226837) internal successors, (421), 312 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,464 INFO L74 IsIncluded]: Start isIncluded. First operand 569 states and 767 transitions. Second operand has 313 states, 313 states have (on average 1.3450479233226837) internal successors, (421), 312 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,466 INFO L87 Difference]: Start difference. First operand 569 states and 767 transitions. Second operand has 313 states, 313 states have (on average 1.3450479233226837) internal successors, (421), 312 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:10,511 INFO L93 Difference]: Finished difference Result 569 states and 767 transitions. [2022-02-21 04:18:10,512 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 767 transitions. [2022-02-21 04:18:10,515 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:10,515 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:10,516 INFO L74 IsIncluded]: Start isIncluded. First operand has 313 states, 313 states have (on average 1.3450479233226837) internal successors, (421), 312 states have internal predecessors, (421), 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 569 states and 767 transitions. [2022-02-21 04:18:10,517 INFO L87 Difference]: Start difference. First operand has 313 states, 313 states have (on average 1.3450479233226837) internal successors, (421), 312 states have internal predecessors, (421), 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 569 states and 767 transitions. [2022-02-21 04:18:10,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:10,545 INFO L93 Difference]: Finished difference Result 569 states and 767 transitions. [2022-02-21 04:18:10,545 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 767 transitions. [2022-02-21 04:18:10,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:10,547 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:10,547 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:10,548 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:10,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 313 states have (on average 1.3450479233226837) internal successors, (421), 312 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 421 transitions. [2022-02-21 04:18:10,561 INFO L704 BuchiCegarLoop]: Abstraction has 313 states and 421 transitions. [2022-02-21 04:18:10,575 INFO L587 BuchiCegarLoop]: Abstraction has 313 states and 421 transitions. [2022-02-21 04:18:10,575 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:10,575 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 313 states and 421 transitions. [2022-02-21 04:18:10,577 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 216 [2022-02-21 04:18:10,577 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:10,577 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:10,578 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:10,578 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:10,578 INFO L791 eck$LassoCheckResult]: Stem: 1151#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1115#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret25#1, main_~retValue_acc~6#1, main_~tmp~7#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 935#L423 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 933#L416 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 934#L431 main_#t~ret25#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 1148#L527 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1138#L504 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1075#L65-2 [2022-02-21 04:18:10,578 INFO L793 eck$LassoCheckResult]: Loop: 1075#L65-2 assume !false; 961#L66 assume test_~splverifierCounter~0#1 < 4; 962#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1128#L75 assume !(0 != test_~tmp~0#1); 1035#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 967#L85 assume !(0 != test_~tmp___0~0#1); 969#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1086#L95 assume 0 != test_~tmp___2~0#1; 1027#L101-2 assume { :begin_inline_timeShift } true; 951#L139 assume !(0 != ~pumpRunning~0); 952#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1006#L223 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret11#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 978#L950 isMethaneAlarm_#t~ret11#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret11#1;havoc isMethaneAlarm_#t~ret11#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; 979#L267 processEnvironment_#t~ret10#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret10#1;havoc processEnvironment_#t~ret10#1; 1042#L227 assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 993#L257-1 assume { :end_inline_deactivatePump } true; 920#L223-1 assume { :end_inline_processEnvironment } true; 1089#L146-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 1090#L982 __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 1091#L380 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 1079#L380-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1074#L156 assume { :end_inline_timeShift } true; 1075#L65-2 [2022-02-21 04:18:10,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:10,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:18:10,579 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:10,579 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752834368] [2022-02-21 04:18:10,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:10,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:10,593 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:10,621 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:10,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:10,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1505606317, now seen corresponding path program 1 times [2022-02-21 04:18:10,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:10,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217518853] [2022-02-21 04:18:10,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:10,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:10,651 INFO L290 TraceCheckUtils]: 0: Hoare triple {2347#true} assume !false; {2347#true} is VALID [2022-02-21 04:18:10,651 INFO L290 TraceCheckUtils]: 1: Hoare triple {2347#true} assume test_~splverifierCounter~0#1 < 4; {2347#true} is VALID [2022-02-21 04:18:10,652 INFO L290 TraceCheckUtils]: 2: Hoare triple {2347#true} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {2347#true} is VALID [2022-02-21 04:18:10,652 INFO L290 TraceCheckUtils]: 3: Hoare triple {2347#true} assume !(0 != test_~tmp~0#1); {2347#true} is VALID [2022-02-21 04:18:10,652 INFO L290 TraceCheckUtils]: 4: Hoare triple {2347#true} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {2347#true} is VALID [2022-02-21 04:18:10,653 INFO L290 TraceCheckUtils]: 5: Hoare triple {2347#true} assume !(0 != test_~tmp___0~0#1); {2347#true} is VALID [2022-02-21 04:18:10,654 INFO L290 TraceCheckUtils]: 6: Hoare triple {2347#true} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {2347#true} is VALID [2022-02-21 04:18:10,654 INFO L290 TraceCheckUtils]: 7: Hoare triple {2347#true} assume 0 != test_~tmp___2~0#1; {2347#true} is VALID [2022-02-21 04:18:10,655 INFO L290 TraceCheckUtils]: 8: Hoare triple {2347#true} assume { :begin_inline_timeShift } true; {2347#true} is VALID [2022-02-21 04:18:10,655 INFO L290 TraceCheckUtils]: 9: Hoare triple {2347#true} assume !(0 != ~pumpRunning~0); {2349#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:10,655 INFO L290 TraceCheckUtils]: 10: Hoare triple {2349#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {2349#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:10,656 INFO L290 TraceCheckUtils]: 11: Hoare triple {2349#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret11#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; {2348#false} is VALID [2022-02-21 04:18:10,656 INFO L290 TraceCheckUtils]: 12: Hoare triple {2348#false} isMethaneAlarm_#t~ret11#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret11#1;havoc isMethaneAlarm_#t~ret11#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; {2348#false} is VALID [2022-02-21 04:18:10,656 INFO L290 TraceCheckUtils]: 13: Hoare triple {2348#false} processEnvironment_#t~ret10#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret10#1;havoc processEnvironment_#t~ret10#1; {2348#false} is VALID [2022-02-21 04:18:10,656 INFO L290 TraceCheckUtils]: 14: Hoare triple {2348#false} assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {2348#false} is VALID [2022-02-21 04:18:10,657 INFO L290 TraceCheckUtils]: 15: Hoare triple {2348#false} assume { :end_inline_deactivatePump } true; {2348#false} is VALID [2022-02-21 04:18:10,657 INFO L290 TraceCheckUtils]: 16: Hoare triple {2348#false} assume { :end_inline_processEnvironment } true; {2348#false} is VALID [2022-02-21 04:18:10,657 INFO L290 TraceCheckUtils]: 17: Hoare triple {2348#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; {2348#false} is VALID [2022-02-21 04:18:10,658 INFO L290 TraceCheckUtils]: 18: Hoare triple {2348#false} __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; {2348#false} is VALID [2022-02-21 04:18:10,658 INFO L290 TraceCheckUtils]: 19: Hoare triple {2348#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); {2348#false} is VALID [2022-02-21 04:18:10,658 INFO L290 TraceCheckUtils]: 20: Hoare triple {2348#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {2348#false} is VALID [2022-02-21 04:18:10,658 INFO L290 TraceCheckUtils]: 21: Hoare triple {2348#false} assume { :end_inline_timeShift } true; {2348#false} is VALID [2022-02-21 04:18:10,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:10,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:10,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217518853] [2022-02-21 04:18:10,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217518853] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:10,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:10,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:10,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732395295] [2022-02-21 04:18:10,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:10,660 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:10,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:10,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:10,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:10,672 INFO L87 Difference]: Start difference. First operand 313 states and 421 transitions. cyclomatic complexity: 111 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:11,035 INFO L93 Difference]: Finished difference Result 318 states and 403 transitions. [2022-02-21 04:18:11,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:11,036 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,052 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:11,053 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 318 states and 403 transitions. [2022-02-21 04:18:11,060 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 225 [2022-02-21 04:18:11,066 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 318 states to 318 states and 403 transitions. [2022-02-21 04:18:11,067 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 318 [2022-02-21 04:18:11,067 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 318 [2022-02-21 04:18:11,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 318 states and 403 transitions. [2022-02-21 04:18:11,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:11,068 INFO L681 BuchiCegarLoop]: Abstraction has 318 states and 403 transitions. [2022-02-21 04:18:11,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states and 403 transitions. [2022-02-21 04:18:11,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2022-02-21 04:18:11,087 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:11,088 INFO L82 GeneralOperation]: Start isEquivalent. First operand 318 states and 403 transitions. Second operand has 318 states, 318 states have (on average 1.2672955974842768) internal successors, (403), 317 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,088 INFO L74 IsIncluded]: Start isIncluded. First operand 318 states and 403 transitions. Second operand has 318 states, 318 states have (on average 1.2672955974842768) internal successors, (403), 317 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,089 INFO L87 Difference]: Start difference. First operand 318 states and 403 transitions. Second operand has 318 states, 318 states have (on average 1.2672955974842768) internal successors, (403), 317 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:11,105 INFO L93 Difference]: Finished difference Result 318 states and 403 transitions. [2022-02-21 04:18:11,105 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 403 transitions. [2022-02-21 04:18:11,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:11,106 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:11,106 INFO L74 IsIncluded]: Start isIncluded. First operand has 318 states, 318 states have (on average 1.2672955974842768) internal successors, (403), 317 states have internal predecessors, (403), 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 318 states and 403 transitions. [2022-02-21 04:18:11,107 INFO L87 Difference]: Start difference. First operand has 318 states, 318 states have (on average 1.2672955974842768) internal successors, (403), 317 states have internal predecessors, (403), 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 318 states and 403 transitions. [2022-02-21 04:18:11,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:11,112 INFO L93 Difference]: Finished difference Result 318 states and 403 transitions. [2022-02-21 04:18:11,112 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 403 transitions. [2022-02-21 04:18:11,112 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:11,113 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:11,113 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:11,113 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:11,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 318 states have (on average 1.2672955974842768) internal successors, (403), 317 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 403 transitions. [2022-02-21 04:18:11,118 INFO L704 BuchiCegarLoop]: Abstraction has 318 states and 403 transitions. [2022-02-21 04:18:11,118 INFO L587 BuchiCegarLoop]: Abstraction has 318 states and 403 transitions. [2022-02-21 04:18:11,124 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:11,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 318 states and 403 transitions. [2022-02-21 04:18:11,125 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 225 [2022-02-21 04:18:11,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:11,128 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:11,128 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:11,128 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:11,129 INFO L791 eck$LassoCheckResult]: Stem: 2899#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2858#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret25#1, main_~retValue_acc~6#1, main_~tmp~7#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 2704#L423 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2701#L416 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 2702#L431 main_#t~ret25#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 2893#L527 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 2884#L504 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2885#L65-2 [2022-02-21 04:18:11,130 INFO L793 eck$LassoCheckResult]: Loop: 2885#L65-2 assume !false; 2959#L66 assume test_~splverifierCounter~0#1 < 4; 2898#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 2873#L75 assume !(0 != test_~tmp~0#1); 2776#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 2806#L85 assume !(0 != test_~tmp___0~0#1); 2967#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 2890#L95 assume 0 != test_~tmp___2~0#1; 2773#L101-2 assume { :begin_inline_timeShift } true; 2711#L139 assume !(0 != ~pumpRunning~0); 2712#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 2757#L223 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret9#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; 2758#L197-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 2889#L171-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 2724#L990-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 2725#L995-3 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 2856#L325-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2828#L325-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2743#L331-3 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 2744#L175-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2831#L163-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2676#L171-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2677#L197-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2692#L223-1 assume { :end_inline_processEnvironment } true; 2825#L146-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 2963#L982 __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 2962#L380 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 2961#L380-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 2960#L156 assume { :end_inline_timeShift } true; 2885#L65-2 [2022-02-21 04:18:11,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:11,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:18:11,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:11,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964718444] [2022-02-21 04:18:11,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:11,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,166 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,176 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:11,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:11,179 INFO L85 PathProgramCache]: Analyzing trace with hash -435637515, now seen corresponding path program 1 times [2022-02-21 04:18:11,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:11,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275111537] [2022-02-21 04:18:11,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:11,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,188 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,199 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:11,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:11,201 INFO L85 PathProgramCache]: Analyzing trace with hash -561372239, now seen corresponding path program 1 times [2022-02-21 04:18:11,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:11,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319874541] [2022-02-21 04:18:11,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:11,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,215 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,225 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:13,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:13 BoogieIcfgContainer [2022-02-21 04:18:13,892 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:13,893 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:13,893 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:13,893 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:13,893 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:07" (3/4) ... [2022-02-21 04:18:13,897 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:13,949 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:13,949 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:13,950 INFO L158 Benchmark]: Toolchain (without parser) took 7687.03ms. Allocated memory was 83.9MB in the beginning and 165.7MB in the end (delta: 81.8MB). Free memory was 61.4MB in the beginning and 73.0MB in the end (delta: -11.7MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:13,950 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory is still 59.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:13,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 489.33ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 61.2MB in the beginning and 83.6MB in the end (delta: -22.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-21 04:18:13,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.42ms. Allocated memory is still 117.4MB. Free memory was 83.6MB in the beginning and 77.8MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:13,951 INFO L158 Benchmark]: Boogie Preprocessor took 89.81ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 74.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:13,952 INFO L158 Benchmark]: RCFGBuilder took 986.38ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 71.0MB in the end (delta: 3.3MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2022-02-21 04:18:13,952 INFO L158 Benchmark]: BuchiAutomizer took 5949.46ms. Allocated memory was 117.4MB in the beginning and 165.7MB in the end (delta: 48.2MB). Free memory was 70.8MB in the beginning and 75.1MB in the end (delta: -4.3MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2022-02-21 04:18:13,952 INFO L158 Benchmark]: Witness Printer took 56.66ms. Allocated memory is still 165.7MB. Free memory was 75.1MB in the beginning and 73.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:13,953 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 0.17ms. Allocated memory is still 83.9MB. Free memory is still 59.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 489.33ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 61.2MB in the beginning and 83.6MB in the end (delta: -22.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.42ms. Allocated memory is still 117.4MB. Free memory was 83.6MB in the beginning and 77.8MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.81ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 74.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 986.38ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 71.0MB in the end (delta: 3.3MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 5949.46ms. Allocated memory was 117.4MB in the beginning and 165.7MB in the end (delta: 48.2MB). Free memory was 70.8MB in the beginning and 75.1MB in the end (delta: -4.3MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. * Witness Printer took 56.66ms. Allocated memory is still 165.7MB. Free memory was 75.1MB in the beginning and 73.0MB 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 318 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.1s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 256 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 318 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1585 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1585 mSDsluCounter, 2121 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1480 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 641 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f5bd50c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6aa21394=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@703d1a7f=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e6ea481=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@726349d0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73e65d14=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fe2eb7b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5906c1eb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67569651=29, methaneLevelCritical=0, retValue_acc=1, retValue_acc=1, retValue_acc=1, tmp=1, \result=1, \result=1, retValue_acc=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a35d34f=0, tmp=1, tmp___2=29, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c32dad7=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, \result=0, tmp=0, retValue_acc=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 65]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L445] int cleanupTimeShifts = 4; [L710] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L907] int waterLevel = 1; [L908] int methaneLevelCritical = 0; [L518] int retValue_acc ; [L519] int tmp ; [L523] FCALL select_helpers() [L524] FCALL select_features() [L525] CALL, EXPR valid_product() [L427] int retValue_acc ; [L430] retValue_acc = 1 [L431] return (retValue_acc); [L525] RET, EXPR valid_product() [L525] tmp = valid_product() [L527] COND TRUE \read(tmp) [L529] FCALL setup() [L530] CALL runTest() [L512] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L110] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L220] int tmp ; [L223] COND FALSE !(\read(pumpRunning)) [L238] CALL processEnvironment__wrappee__lowWaterSensor() [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L212] CALL processEnvironment__wrappee__highWaterSensor() [L168] int tmp ; [L171] COND TRUE ! pumpRunning [L173] CALL, EXPR isHighWaterLevel() [L317] int retValue_acc ; [L318] int tmp ; [L319] int tmp___0 ; [L323] CALL, EXPR isHighWaterSensorDry() [L987] int retValue_acc ; [L990] COND TRUE waterLevel < 2 [L991] retValue_acc = 1 [L992] return (retValue_acc); [L323] RET, EXPR isHighWaterSensorDry() [L323] tmp = isHighWaterSensorDry() [L325] COND TRUE \read(tmp) [L326] tmp___0 = 0 [L330] retValue_acc = tmp___0 [L331] return (retValue_acc); [L173] RET, EXPR isHighWaterLevel() [L173] tmp = isHighWaterLevel() [L175] COND FALSE !(\read(tmp)) [L181] FCALL processEnvironment__wrappee__base() [L212] RET processEnvironment__wrappee__highWaterSensor() [L238] RET processEnvironment__wrappee__lowWaterSensor() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification4_spec__1() [L373] int tmp ; [L374] int tmp___0 ; [L378] CALL, EXPR getWaterLevel() [L978] int retValue_acc ; [L981] retValue_acc = waterLevel [L982] return (retValue_acc); [L378] RET, EXPR getWaterLevel() [L378] tmp = getWaterLevel() [L380] COND FALSE !(tmp == 0) [L154] RET __utac_acc__Specification4_spec__1() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:14,018 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)