./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product47.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 c4da108453cefa034e9e2f20ae1a945f7f6bf5ea54205b9ec625406680c7ecea --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 15:57:09,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:57:09,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:57:09,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:57:09,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:57:09,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:57:09,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:57:09,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:57:09,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:57:09,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:57:09,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:57:09,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:57:09,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:57:09,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:57:09,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:57:09,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:57:09,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:57:09,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:57:09,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:57:09,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:57:09,390 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:57:09,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:57:09,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:57:09,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:57:09,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:57:09,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:57:09,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:57:09,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:57:09,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:57:09,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:57:09,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:57:09,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:57:09,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:57:09,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:57:09,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:57:09,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:57:09,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:57:09,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:57:09,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:57:09,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:57:09,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:57:09,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:57:09,409 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 15:57:09,430 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:57:09,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:57:09,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:57:09,431 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:57:09,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:57:09,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:57:09,433 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:57:09,433 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:57:09,433 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:57:09,434 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:57:09,434 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:57:09,434 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:57:09,434 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:57:09,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:57:09,434 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 15:57:09,434 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:57:09,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:57:09,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 15:57:09,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:57:09,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:57:09,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:57:09,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:57:09,436 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 15:57:09,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:57:09,436 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:57:09,436 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:57:09,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:57:09,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:57:09,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:57:09,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:57:09,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:57:09,438 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:57:09,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4da108453cefa034e9e2f20ae1a945f7f6bf5ea54205b9ec625406680c7ecea [2022-07-14 15:57:09,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:57:09,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:57:09,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:57:09,659 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:57:09,660 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:57:09,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c [2022-07-14 15:57:09,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2de3ccd0/1e526116bf94461ca20d51b90d45a8c1/FLAG0a7c3c745 [2022-07-14 15:57:10,128 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:57:10,129 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c [2022-07-14 15:57:10,142 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2de3ccd0/1e526116bf94461ca20d51b90d45a8c1/FLAG0a7c3c745 [2022-07-14 15:57:10,150 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2de3ccd0/1e526116bf94461ca20d51b90d45a8c1 [2022-07-14 15:57:10,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:57:10,153 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:57:10,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:57:10,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:57:10,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:57:10,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:57:10" (1/1) ... [2022-07-14 15:57:10,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ac340a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:10, skipping insertion in model container [2022-07-14 15:57:10,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:57:10" (1/1) ... [2022-07-14 15:57:10,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:57:10,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:57:10,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c[2044,2057] [2022-07-14 15:57:10,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:57:10,353 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:57:10,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c[2044,2057] [2022-07-14 15:57:10,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:57:10,403 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:57:10,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:10 WrapperNode [2022-07-14 15:57:10,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:57:10,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:57:10,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:57:10,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:57:10,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:10" (1/1) ... [2022-07-14 15:57:10,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:10" (1/1) ... [2022-07-14 15:57:10,443 INFO L137 Inliner]: procedures = 55, calls = 157, calls flagged for inlining = 54, calls inlined = 97, statements flattened = 714 [2022-07-14 15:57:10,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:57:10,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:57:10,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:57:10,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:57:10,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:10" (1/1) ... [2022-07-14 15:57:10,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:10" (1/1) ... [2022-07-14 15:57:10,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:10" (1/1) ... [2022-07-14 15:57:10,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:10" (1/1) ... [2022-07-14 15:57:10,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:10" (1/1) ... [2022-07-14 15:57:10,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:10" (1/1) ... [2022-07-14 15:57:10,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:10" (1/1) ... [2022-07-14 15:57:10,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:57:10,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:57:10,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:57:10,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:57:10,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:10" (1/1) ... [2022-07-14 15:57:10,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:57:10,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:57:10,503 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) [2022-07-14 15:57:10,546 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 [2022-07-14 15:57:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 15:57:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 15:57:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:57:10,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:57:10,616 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:57:10,617 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:57:10,919 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:57:10,925 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:57:10,925 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 15:57:10,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:10 BoogieIcfgContainer [2022-07-14 15:57:10,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:57:10,928 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:57:10,928 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:57:10,930 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:57:10,931 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:10,931 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:57:10" (1/3) ... [2022-07-14 15:57:10,931 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5925b281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:57:10, skipping insertion in model container [2022-07-14 15:57:10,932 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:10,932 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:10" (2/3) ... [2022-07-14 15:57:10,932 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5925b281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:57:10, skipping insertion in model container [2022-07-14 15:57:10,932 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:10,932 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:10" (3/3) ... [2022-07-14 15:57:10,933 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product47.cil.c [2022-07-14 15:57:10,973 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:57:10,973 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:57:10,973 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:57:10,974 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:57:10,974 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:57:10,974 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:57:10,974 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:57:10,974 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:57:10,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 184 states, 183 states have (on average 1.355191256830601) internal successors, (248), 183 states have internal predecessors, (248), 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) [2022-07-14 15:57:10,998 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2022-07-14 15:57:10,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:10,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:11,002 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:11,002 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:11,002 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:57:11,003 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 184 states, 183 states have (on average 1.355191256830601) internal successors, (248), 183 states have internal predecessors, (248), 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) [2022-07-14 15:57:11,009 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2022-07-14 15:57:11,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:11,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:11,010 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:11,010 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:11,013 INFO L752 eck$LassoCheckResult]: Stem: 169#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 59#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 158#L113true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 166#L106true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 40#L121true main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 91#L957true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 133#L934true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 73#L452-2true [2022-07-14 15:57:11,014 INFO L754 eck$LassoCheckResult]: Loop: 73#L452-2true assume !false; 65#L453true assume test_~splverifierCounter~0#1 < 4; 8#L454true test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 113#L462true assume !(0 != test_~tmp~5#1); 18#L462-2true test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 49#L472true assume !(0 != test_~tmp___0~2#1); 60#L472-2true test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 87#L482true assume 0 != test_~tmp___2~0#1; 56#L488-2true assume { :begin_inline_timeShift } true; 38#L238true assume !(0 != ~pumpRunning~0); 134#L238-2true assume !(0 != ~systemActive~0); 45#L245-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 75#L175-3true __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 103#L61true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 156#L61-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 24#L255true assume { :end_inline_timeShift } true; 73#L452-2true [2022-07-14 15:57:11,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:11,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-14 15:57:11,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:11,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884481707] [2022-07-14 15:57:11,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:11,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:11,097 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:11,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:11,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:11,131 INFO L85 PathProgramCache]: Analyzing trace with hash 879808708, now seen corresponding path program 1 times [2022-07-14 15:57:11,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:11,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756871993] [2022-07-14 15:57:11,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:11,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:11,137 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:11,142 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:11,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:11,143 INFO L85 PathProgramCache]: Analyzing trace with hash -2059739512, now seen corresponding path program 1 times [2022-07-14 15:57:11,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:11,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219864064] [2022-07-14 15:57:11,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:11,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:57:11,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:57:11,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:57:11,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219864064] [2022-07-14 15:57:11,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219864064] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:57:11,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:57:11,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 15:57:11,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447495234] [2022-07-14 15:57:11,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:57:11,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:57:11,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 15:57:11,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 15:57:11,432 INFO L87 Difference]: Start difference. First operand has 184 states, 183 states have (on average 1.355191256830601) internal successors, (248), 183 states have internal predecessors, (248), 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) [2022-07-14 15:57:11,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:57:11,520 INFO L93 Difference]: Finished difference Result 419 states and 545 transitions. [2022-07-14 15:57:11,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 15:57:11,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 419 states and 545 transitions. [2022-07-14 15:57:11,531 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 271 [2022-07-14 15:57:11,536 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 419 states to 389 states and 515 transitions. [2022-07-14 15:57:11,536 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 389 [2022-07-14 15:57:11,537 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 389 [2022-07-14 15:57:11,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 389 states and 515 transitions. [2022-07-14 15:57:11,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:57:11,543 INFO L369 hiAutomatonCegarLoop]: Abstraction has 389 states and 515 transitions. [2022-07-14 15:57:11,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states and 515 transitions. [2022-07-14 15:57:11,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 223. [2022-07-14 15:57:11,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 223 states have (on average 1.3228699551569507) internal successors, (295), 222 states have internal predecessors, (295), 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) [2022-07-14 15:57:11,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 295 transitions. [2022-07-14 15:57:11,586 INFO L392 hiAutomatonCegarLoop]: Abstraction has 223 states and 295 transitions. [2022-07-14 15:57:11,586 INFO L374 stractBuchiCegarLoop]: Abstraction has 223 states and 295 transitions. [2022-07-14 15:57:11,586 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:57:11,586 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 223 states and 295 transitions. [2022-07-14 15:57:11,590 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 156 [2022-07-14 15:57:11,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:11,590 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:11,590 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:11,590 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:11,591 INFO L752 eck$LassoCheckResult]: Stem: 792#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 708#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 709#L113 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 790#L106 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 682#L121 main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 683#L957 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 746#L934 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 662#L452-2 [2022-07-14 15:57:11,591 INFO L754 eck$LassoCheckResult]: Loop: 662#L452-2 assume !false; 716#L453 assume test_~splverifierCounter~0#1 < 4; 630#L454 test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 631#L462 assume !(0 != test_~tmp~5#1); 649#L462-2 test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 650#L472 assume !(0 != test_~tmp___0~2#1); 694#L472-2 test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 710#L482 assume 0 != test_~tmp___2~0#1; 704#L488-2 assume { :begin_inline_timeShift } true; 679#L238 assume !(0 != ~pumpRunning~0); 680#L238-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 727#L296 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 728#L270-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 669#L262-3 assume { :end_inline_processEnvironment__wrappee__base } true; 670#L270-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 652#L296-1 assume { :end_inline_processEnvironment } true; 689#L245-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 690#L175-3 __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 729#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 758#L61-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 661#L255 assume { :end_inline_timeShift } true; 662#L452-2 [2022-07-14 15:57:11,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:11,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-14 15:57:11,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:11,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732218701] [2022-07-14 15:57:11,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:11,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:11,603 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:11,616 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:11,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:11,617 INFO L85 PathProgramCache]: Analyzing trace with hash 826115258, now seen corresponding path program 1 times [2022-07-14 15:57:11,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:11,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316370221] [2022-07-14 15:57:11,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:11,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:57:11,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:57:11,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:57:11,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316370221] [2022-07-14 15:57:11,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316370221] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:57:11,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:57:11,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 15:57:11,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964627997] [2022-07-14 15:57:11,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:57:11,642 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 15:57:11,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:57:11,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 15:57:11,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 15:57:11,643 INFO L87 Difference]: Start difference. First operand 223 states and 295 transitions. cyclomatic complexity: 75 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:57:11,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:57:11,715 INFO L93 Difference]: Finished difference Result 279 states and 352 transitions. [2022-07-14 15:57:11,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 15:57:11,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 279 states and 352 transitions. [2022-07-14 15:57:11,718 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 199 [2022-07-14 15:57:11,721 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 279 states to 279 states and 352 transitions. [2022-07-14 15:57:11,721 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 279 [2022-07-14 15:57:11,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 279 [2022-07-14 15:57:11,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 279 states and 352 transitions. [2022-07-14 15:57:11,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:57:11,727 INFO L369 hiAutomatonCegarLoop]: Abstraction has 279 states and 352 transitions. [2022-07-14 15:57:11,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states and 352 transitions. [2022-07-14 15:57:11,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2022-07-14 15:57:11,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 279 states have (on average 1.2616487455197132) internal successors, (352), 278 states have internal predecessors, (352), 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) [2022-07-14 15:57:11,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 352 transitions. [2022-07-14 15:57:11,739 INFO L392 hiAutomatonCegarLoop]: Abstraction has 279 states and 352 transitions. [2022-07-14 15:57:11,739 INFO L374 stractBuchiCegarLoop]: Abstraction has 279 states and 352 transitions. [2022-07-14 15:57:11,739 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 15:57:11,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 352 transitions. [2022-07-14 15:57:11,740 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 199 [2022-07-14 15:57:11,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:11,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:11,741 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:11,741 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:11,741 INFO L752 eck$LassoCheckResult]: Stem: 1307#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1213#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 1214#L113 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1304#L106 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1187#L121 main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 1188#L957 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 1253#L934 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1169#L452-2 [2022-07-14 15:57:11,741 INFO L754 eck$LassoCheckResult]: Loop: 1169#L452-2 assume !false; 1221#L453 assume test_~splverifierCounter~0#1 < 4; 1140#L454 test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 1141#L462 assume !(0 != test_~tmp~5#1); 1159#L462-2 test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 1160#L472 assume !(0 != test_~tmp___0~2#1); 1200#L472-2 test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1212#L482 assume 0 != test_~tmp___2~0#1; 1208#L488-2 assume { :begin_inline_timeShift } true; 1184#L238 assume !(0 != ~pumpRunning~0); 1185#L238-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1232#L296 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 1233#L270-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#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~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 1146#L215-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 1147#L220-1 isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; 1163#L415-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1164#L415-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1291#L421-1 processEnvironment__wrappee__methaneQuery_#t~ret12#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret12#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1; 1242#L274-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1244#L262-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1197#L270-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1158#L296-1 assume { :end_inline_processEnvironment } true; 1194#L245-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1195#L175-3 __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 1234#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 1266#L61-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1168#L255 assume { :end_inline_timeShift } true; 1169#L452-2 [2022-07-14 15:57:11,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:11,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-14 15:57:11,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:11,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557681282] [2022-07-14 15:57:11,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:11,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:11,764 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:11,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:11,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:11,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1851545870, now seen corresponding path program 1 times [2022-07-14 15:57:11,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:11,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076535998] [2022-07-14 15:57:11,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:11,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:11,792 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:11,797 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:11,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:11,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1476258130, now seen corresponding path program 1 times [2022-07-14 15:57:11,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:11,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956282958] [2022-07-14 15:57:11,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:11,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:11,818 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:11,846 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:13,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 03:57:13 BoogieIcfgContainer [2022-07-14 15:57:13,777 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 15:57:13,778 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 15:57:13,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 15:57:13,778 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 15:57:13,779 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:10" (3/4) ... [2022-07-14 15:57:13,780 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 15:57:13,815 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 15:57:13,815 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 15:57:13,816 INFO L158 Benchmark]: Toolchain (without parser) took 3663.17ms. Allocated memory was 98.6MB in the beginning and 151.0MB in the end (delta: 52.4MB). Free memory was 64.2MB in the beginning and 61.0MB in the end (delta: 3.2MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2022-07-14 15:57:13,816 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory was 53.1MB in the beginning and 53.1MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:57:13,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.74ms. Allocated memory is still 98.6MB. Free memory was 64.0MB in the beginning and 64.3MB in the end (delta: -284.0kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-14 15:57:13,817 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.73ms. Allocated memory is still 98.6MB. Free memory was 64.3MB in the beginning and 60.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:57:13,818 INFO L158 Benchmark]: Boogie Preprocessor took 21.98ms. Allocated memory is still 98.6MB. Free memory was 60.7MB in the beginning and 58.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 15:57:13,818 INFO L158 Benchmark]: RCFGBuilder took 460.46ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 58.0MB in the beginning and 81.3MB in the end (delta: -23.3MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2022-07-14 15:57:13,818 INFO L158 Benchmark]: BuchiAutomizer took 2849.88ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 80.7MB in the beginning and 64.5MB in the end (delta: 16.3MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2022-07-14 15:57:13,819 INFO L158 Benchmark]: Witness Printer took 37.48ms. Allocated memory is still 151.0MB. Free memory was 64.5MB in the beginning and 61.0MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:57:13,821 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory was 53.1MB in the beginning and 53.1MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.74ms. Allocated memory is still 98.6MB. Free memory was 64.0MB in the beginning and 64.3MB in the end (delta: -284.0kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.73ms. Allocated memory is still 98.6MB. Free memory was 64.3MB in the beginning and 60.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.98ms. Allocated memory is still 98.6MB. Free memory was 60.7MB in the beginning and 58.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 460.46ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 58.0MB in the beginning and 81.3MB in the end (delta: -23.3MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 2849.88ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 80.7MB in the beginning and 64.5MB in the end (delta: 16.3MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. * Witness Printer took 37.48ms. Allocated memory is still 151.0MB. Free memory was 64.5MB in the beginning and 61.0MB in the end (delta: 3.4MB). 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 279 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 166 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1066 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1066 mSDsluCounter, 1530 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1078 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 452 mSDtfsCounter, 73 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 452]: 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, tmp=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cdc043e=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@552cc345=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d55b07f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2557ff52=0, methaneLevelCritical=0, \result=0, retValue_acc=1, retValue_acc=0, retValue_acc=1, \result=1, \result=1, retValue_acc=0, tmp=1, tmp___2=29, tmp=1, cleanupTimeShifts=4, \result=0, tmp=0, head=0, tmp___1=0, retValue_acc=0, NULL=0, tmp=0, waterLevel=1, systemActive=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14174610=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1628d32e=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@579a72b8=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e305017=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fe5c116=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ad03695=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 452]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L132] int waterLevel = 1; [L133] int methaneLevelCritical = 0; [L231] int pumpRunning = 0; [L232] int systemActive = 1; [L678] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L875] int cleanupTimeShifts = 4; [L948] int retValue_acc ; [L949] int tmp ; [L953] FCALL select_helpers() [L954] FCALL select_features() [L955] CALL, EXPR valid_product() [L117] int retValue_acc ; [L120] retValue_acc = 1 [L121] return (retValue_acc); [L955] RET, EXPR valid_product() [L955] tmp = valid_product() [L957] COND TRUE \read(tmp) [L959] FCALL setup() [L960] CALL runTest() [L942] CALL test() [L443] int splverifierCounter ; [L444] int tmp ; [L445] int tmp___0 ; [L446] int tmp___1 ; [L447] int tmp___2 ; [L450] splverifierCounter = 0 Loop: [L452] COND TRUE 1 [L454] COND TRUE splverifierCounter < 4 [L460] tmp = __VERIFIER_nondet_int() [L462] COND FALSE !(\read(tmp)) [L470] tmp___0 = __VERIFIER_nondet_int() [L472] COND FALSE !(\read(tmp___0)) [L480] tmp___2 = __VERIFIER_nondet_int() [L482] COND TRUE \read(tmp___2) [L497] CALL timeShift() [L238] COND FALSE !(\read(pumpRunning)) [L245] COND TRUE \read(systemActive) [L247] CALL processEnvironment() [L293] int tmp ; [L296] COND FALSE !(\read(pumpRunning)) [L311] CALL processEnvironment__wrappee__methaneQuery() [L267] int tmp ; [L270] COND TRUE ! pumpRunning [L272] CALL, EXPR isHighWaterLevel() [L407] int retValue_acc ; [L408] int tmp ; [L409] int tmp___0 ; [L413] CALL, EXPR isHighWaterSensorDry() [L212] int retValue_acc ; [L215] COND TRUE waterLevel < 2 [L216] retValue_acc = 1 [L217] return (retValue_acc); [L413] RET, EXPR isHighWaterSensorDry() [L413] tmp = isHighWaterSensorDry() [L415] COND TRUE \read(tmp) [L416] tmp___0 = 0 [L420] retValue_acc = tmp___0 [L421] return (retValue_acc); [L272] RET, EXPR isHighWaterLevel() [L272] tmp = isHighWaterLevel() [L274] COND FALSE !(\read(tmp)) [L280] FCALL processEnvironment__wrappee__base() [L311] RET processEnvironment__wrappee__methaneQuery() [L247] RET processEnvironment() [L253] CALL __utac_acc__Specification1_spec__1() [L54] int tmp ; [L55] int tmp___0 ; [L59] CALL, EXPR isMethaneLevelCritical() [L171] int retValue_acc ; [L174] retValue_acc = methaneLevelCritical [L175] return (retValue_acc); [L59] RET, EXPR isMethaneLevelCritical() [L59] tmp = isMethaneLevelCritical() [L61] COND FALSE !(\read(tmp)) [L253] RET __utac_acc__Specification1_spec__1() [L497] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 15:57:13,884 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)