./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product46.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_spec1_product46.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 5780768f89256c506186805750dd5ec09f07e7c3b9baffd6ca5edbcb4a88d3de --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:33,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:33,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:33,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:33,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:33,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:33,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:33,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:33,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:33,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:33,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:33,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:33,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:33,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:33,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:33,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:33,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:33,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:33,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:33,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:33,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:33,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:33,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:33,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:33,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:33,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:33,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:33,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:33,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:33,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:33,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:33,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:33,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:33,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:33,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:33,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:33,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:33,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:33,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:33,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:33,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:33,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:33,408 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:33,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:33,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:33,409 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:33,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:33,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:33,410 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:33,410 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:33,410 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:33,411 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:33,411 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:33,411 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:33,411 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:33,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:33,412 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:33,412 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:33,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:33,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:33,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:33,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:33,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:33,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:33,413 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:33,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:33,414 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:33,414 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:33,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:33,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:33,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:33,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:33,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:33,416 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:33,416 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5780768f89256c506186805750dd5ec09f07e7c3b9baffd6ca5edbcb4a88d3de [2022-02-21 04:15:33,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:33,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:33,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:33,661 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:33,661 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:33,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c [2022-02-21 04:15:33,715 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83b8959b9/0181340d03a4434db3fb84aa55796b39/FLAGff072769d [2022-02-21 04:15:34,142 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:34,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c [2022-02-21 04:15:34,161 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83b8959b9/0181340d03a4434db3fb84aa55796b39/FLAGff072769d [2022-02-21 04:15:34,478 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83b8959b9/0181340d03a4434db3fb84aa55796b39 [2022-02-21 04:15:34,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:34,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:34,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:34,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:34,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:34,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:34" (1/1) ... [2022-02-21 04:15:34,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ecbac5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:34, skipping insertion in model container [2022-02-21 04:15:34,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:34" (1/1) ... [2022-02-21 04:15:34,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:34,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:34,747 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_product46.cil.c[7019,7032] [2022-02-21 04:15:34,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:34,847 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:34,893 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_product46.cil.c[7019,7032] [2022-02-21 04:15:34,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:34,964 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:34,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:34 WrapperNode [2022-02-21 04:15:34,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:34,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:34,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:34,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:34,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:34" (1/1) ... [2022-02-21 04:15:34,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:34" (1/1) ... [2022-02-21 04:15:35,041 INFO L137 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 53, calls inlined = 96, statements flattened = 710 [2022-02-21 04:15:35,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:35,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:35,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:35,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:35,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:34" (1/1) ... [2022-02-21 04:15:35,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:34" (1/1) ... [2022-02-21 04:15:35,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:34" (1/1) ... [2022-02-21 04:15:35,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:34" (1/1) ... [2022-02-21 04:15:35,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:34" (1/1) ... [2022-02-21 04:15:35,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:34" (1/1) ... [2022-02-21 04:15:35,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:34" (1/1) ... [2022-02-21 04:15:35,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:35,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:35,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:35,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:35,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:34" (1/1) ... [2022-02-21 04:15:35,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:35,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:35,138 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 04:15:35,141 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 04:15:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:35,226 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:35,227 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:35,762 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:35,769 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:35,769 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:35,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:35 BoogieIcfgContainer [2022-02-21 04:15:35,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:35,772 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:35,772 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:35,779 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:35,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:35,781 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:34" (1/3) ... [2022-02-21 04:15:35,782 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e687602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:35, skipping insertion in model container [2022-02-21 04:15:35,782 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:35,783 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:34" (2/3) ... [2022-02-21 04:15:35,783 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e687602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:35, skipping insertion in model container [2022-02-21 04:15:35,783 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:35,783 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:35" (3/3) ... [2022-02-21 04:15:35,784 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product46.cil.c [2022-02-21 04:15:35,819 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:35,820 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:35,820 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:35,820 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:35,820 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:35,820 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:35,820 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:35,821 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:35,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 181 states, 180 states have (on average 1.3555555555555556) internal successors, (244), 180 states have internal predecessors, (244), 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 04:15:35,894 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2022-02-21 04:15:35,895 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:35,895 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:35,900 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:35,903 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:35,903 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:35,905 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 181 states, 180 states have (on average 1.3555555555555556) internal successors, (244), 180 states have internal predecessors, (244), 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 04:15:35,919 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2022-02-21 04:15:35,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:35,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:35,920 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:35,920 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:35,927 INFO L791 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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 57#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 7#L455true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 175#L448true 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; 58#L463true main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 8#L419true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 32#L393true 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; 55#L65-2true [2022-02-21 04:15:35,927 INFO L793 eck$LassoCheckResult]: Loop: 55#L65-2true assume !false; 49#L66true assume test_~splverifierCounter~0#1 < 4; 168#L67true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 85#L75true assume !(0 != test_~tmp~0#1); 165#L75-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 52#L85true assume !(0 != test_~tmp___0~0#1); 9#L85-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 129#L95true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 72#L330true assume { :end_inline_startSystem } true; 135#L103-2true assume { :begin_inline_timeShift } true; 88#L138true assume !(0 != ~pumpRunning~0); 131#L138-2true assume !(0 != ~systemActive~0); 95#L145-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret23#1, __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 90#L547-3true __utac_acc__Specification1_spec__1_#t~ret23#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret23#1;havoc __utac_acc__Specification1_spec__1_#t~ret23#1; 134#L485true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 111#L485-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 70#L155true assume { :end_inline_timeShift } true; 55#L65-2true [2022-02-21 04:15:35,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:35,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:35,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:35,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4533919] [2022-02-21 04:15:35,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:35,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:36,088 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:36,161 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:36,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:36,164 INFO L85 PathProgramCache]: Analyzing trace with hash -633144383, now seen corresponding path program 1 times [2022-02-21 04:15:36,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:36,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521648355] [2022-02-21 04:15:36,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:36,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:36,255 INFO L290 TraceCheckUtils]: 0: Hoare triple {187#true} assume !false; {187#true} is VALID [2022-02-21 04:15:36,255 INFO L290 TraceCheckUtils]: 1: Hoare triple {187#true} assume test_~splverifierCounter~0#1 < 4; {187#true} is VALID [2022-02-21 04:15:36,255 INFO L290 TraceCheckUtils]: 2: Hoare triple {187#true} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {187#true} is VALID [2022-02-21 04:15:36,256 INFO L290 TraceCheckUtils]: 3: Hoare triple {187#true} assume !(0 != test_~tmp~0#1); {187#true} is VALID [2022-02-21 04:15:36,256 INFO L290 TraceCheckUtils]: 4: Hoare triple {187#true} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {187#true} is VALID [2022-02-21 04:15:36,256 INFO L290 TraceCheckUtils]: 5: Hoare triple {187#true} assume !(0 != test_~tmp___0~0#1); {187#true} is VALID [2022-02-21 04:15:36,256 INFO L290 TraceCheckUtils]: 6: Hoare triple {187#true} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {187#true} is VALID [2022-02-21 04:15:36,257 INFO L290 TraceCheckUtils]: 7: Hoare triple {187#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {189#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:36,258 INFO L290 TraceCheckUtils]: 8: Hoare triple {189#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {189#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:36,258 INFO L290 TraceCheckUtils]: 9: Hoare triple {189#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {189#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:36,259 INFO L290 TraceCheckUtils]: 10: Hoare triple {189#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {189#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:36,259 INFO L290 TraceCheckUtils]: 11: Hoare triple {189#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {188#false} is VALID [2022-02-21 04:15:36,259 INFO L290 TraceCheckUtils]: 12: Hoare triple {188#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret23#1, __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {188#false} is VALID [2022-02-21 04:15:36,260 INFO L290 TraceCheckUtils]: 13: Hoare triple {188#false} __utac_acc__Specification1_spec__1_#t~ret23#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret23#1;havoc __utac_acc__Specification1_spec__1_#t~ret23#1; {188#false} is VALID [2022-02-21 04:15:36,260 INFO L290 TraceCheckUtils]: 14: Hoare triple {188#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); {188#false} is VALID [2022-02-21 04:15:36,260 INFO L290 TraceCheckUtils]: 15: Hoare triple {188#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {188#false} is VALID [2022-02-21 04:15:36,260 INFO L290 TraceCheckUtils]: 16: Hoare triple {188#false} assume { :end_inline_timeShift } true; {188#false} is VALID [2022-02-21 04:15:36,262 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 04:15:36,262 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:36,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521648355] [2022-02-21 04:15:36,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521648355] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:36,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:36,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:36,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510138021] [2022-02-21 04:15:36,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:36,268 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:36,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:36,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:36,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:36,302 INFO L87 Difference]: Start difference. First operand has 181 states, 180 states have (on average 1.3555555555555556) internal successors, (244), 180 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:36,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:36,540 INFO L93 Difference]: Finished difference Result 178 states and 231 transitions. [2022-02-21 04:15:36,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:36,542 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:36,563 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:36,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 178 states and 231 transitions. [2022-02-21 04:15:36,576 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2022-02-21 04:15:36,583 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 178 states to 168 states and 220 transitions. [2022-02-21 04:15:36,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 168 [2022-02-21 04:15:36,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 168 [2022-02-21 04:15:36,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 168 states and 220 transitions. [2022-02-21 04:15:36,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:36,586 INFO L681 BuchiCegarLoop]: Abstraction has 168 states and 220 transitions. [2022-02-21 04:15:36,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states and 220 transitions. [2022-02-21 04:15:36,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-02-21 04:15:36,613 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:36,614 INFO L82 GeneralOperation]: Start isEquivalent. First operand 168 states and 220 transitions. Second operand has 168 states, 168 states have (on average 1.3095238095238095) internal successors, (220), 167 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:36,615 INFO L74 IsIncluded]: Start isIncluded. First operand 168 states and 220 transitions. Second operand has 168 states, 168 states have (on average 1.3095238095238095) internal successors, (220), 167 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:36,617 INFO L87 Difference]: Start difference. First operand 168 states and 220 transitions. Second operand has 168 states, 168 states have (on average 1.3095238095238095) internal successors, (220), 167 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:36,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:36,623 INFO L93 Difference]: Finished difference Result 168 states and 220 transitions. [2022-02-21 04:15:36,623 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 220 transitions. [2022-02-21 04:15:36,625 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:36,625 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:36,626 INFO L74 IsIncluded]: Start isIncluded. First operand has 168 states, 168 states have (on average 1.3095238095238095) internal successors, (220), 167 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 168 states and 220 transitions. [2022-02-21 04:15:36,626 INFO L87 Difference]: Start difference. First operand has 168 states, 168 states have (on average 1.3095238095238095) internal successors, (220), 167 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 168 states and 220 transitions. [2022-02-21 04:15:36,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:36,632 INFO L93 Difference]: Finished difference Result 168 states and 220 transitions. [2022-02-21 04:15:36,632 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 220 transitions. [2022-02-21 04:15:36,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:36,633 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:36,633 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:36,633 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:36,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 168 states have (on average 1.3095238095238095) internal successors, (220), 167 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:36,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 220 transitions. [2022-02-21 04:15:36,640 INFO L704 BuchiCegarLoop]: Abstraction has 168 states and 220 transitions. [2022-02-21 04:15:36,640 INFO L587 BuchiCegarLoop]: Abstraction has 168 states and 220 transitions. [2022-02-21 04:15:36,640 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:36,640 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 220 transitions. [2022-02-21 04:15:36,643 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2022-02-21 04:15:36,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:36,643 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:36,644 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:36,645 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 04:15:36,645 INFO L791 eck$LassoCheckResult]: Stem: 535#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 455#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 374#L455 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 375#L448 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; 456#L463 main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 376#L419 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 377#L393 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; 421#L65-2 [2022-02-21 04:15:36,645 INFO L793 eck$LassoCheckResult]: Loop: 421#L65-2 assume !false; 441#L66 assume test_~splverifierCounter~0#1 < 4; 442#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 482#L75 assume !(0 != test_~tmp~0#1); 460#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 449#L85 assume !(0 != test_~tmp___0~0#1); 378#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 379#L95 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 470#L330 assume { :end_inline_startSystem } true; 471#L103-2 assume { :begin_inline_timeShift } true; 486#L138 assume !(0 != ~pumpRunning~0); 396#L138-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 488#L196 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 467#L170-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 383#L162-3 assume { :end_inline_processEnvironment__wrappee__base } true; 384#L170-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 472#L196-1 assume { :end_inline_processEnvironment } true; 495#L145-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret23#1, __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 489#L547-3 __utac_acc__Specification1_spec__1_#t~ret23#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret23#1;havoc __utac_acc__Specification1_spec__1_#t~ret23#1; 490#L485 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 509#L485-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 466#L155 assume { :end_inline_timeShift } true; 421#L65-2 [2022-02-21 04:15:36,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:36,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:36,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:36,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452933766] [2022-02-21 04:15:36,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:36,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:36,691 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:36,710 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:36,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:36,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1184062956, now seen corresponding path program 1 times [2022-02-21 04:15:36,711 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:36,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279610447] [2022-02-21 04:15:36,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:36,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:36,735 INFO L290 TraceCheckUtils]: 0: Hoare triple {877#true} assume !false; {877#true} is VALID [2022-02-21 04:15:36,735 INFO L290 TraceCheckUtils]: 1: Hoare triple {877#true} assume test_~splverifierCounter~0#1 < 4; {877#true} is VALID [2022-02-21 04:15:36,735 INFO L290 TraceCheckUtils]: 2: Hoare triple {877#true} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {877#true} is VALID [2022-02-21 04:15:36,736 INFO L290 TraceCheckUtils]: 3: Hoare triple {877#true} assume !(0 != test_~tmp~0#1); {877#true} is VALID [2022-02-21 04:15:36,736 INFO L290 TraceCheckUtils]: 4: Hoare triple {877#true} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {877#true} is VALID [2022-02-21 04:15:36,736 INFO L290 TraceCheckUtils]: 5: Hoare triple {877#true} assume !(0 != test_~tmp___0~0#1); {877#true} is VALID [2022-02-21 04:15:36,736 INFO L290 TraceCheckUtils]: 6: Hoare triple {877#true} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {877#true} is VALID [2022-02-21 04:15:36,736 INFO L290 TraceCheckUtils]: 7: Hoare triple {877#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {877#true} is VALID [2022-02-21 04:15:36,737 INFO L290 TraceCheckUtils]: 8: Hoare triple {877#true} assume { :end_inline_startSystem } true; {877#true} is VALID [2022-02-21 04:15:36,737 INFO L290 TraceCheckUtils]: 9: Hoare triple {877#true} assume { :begin_inline_timeShift } true; {877#true} is VALID [2022-02-21 04:15:36,737 INFO L290 TraceCheckUtils]: 10: Hoare triple {877#true} assume !(0 != ~pumpRunning~0); {879#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:36,738 INFO L290 TraceCheckUtils]: 11: Hoare triple {879#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {879#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:36,738 INFO L290 TraceCheckUtils]: 12: Hoare triple {879#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; {879#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:36,739 INFO L290 TraceCheckUtils]: 13: Hoare triple {879#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {878#false} is VALID [2022-02-21 04:15:36,739 INFO L290 TraceCheckUtils]: 14: Hoare triple {878#false} assume { :end_inline_processEnvironment__wrappee__base } true; {878#false} is VALID [2022-02-21 04:15:36,739 INFO L290 TraceCheckUtils]: 15: Hoare triple {878#false} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {878#false} is VALID [2022-02-21 04:15:36,740 INFO L290 TraceCheckUtils]: 16: Hoare triple {878#false} assume { :end_inline_processEnvironment } true; {878#false} is VALID [2022-02-21 04:15:36,740 INFO L290 TraceCheckUtils]: 17: Hoare triple {878#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret23#1, __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {878#false} is VALID [2022-02-21 04:15:36,740 INFO L290 TraceCheckUtils]: 18: Hoare triple {878#false} __utac_acc__Specification1_spec__1_#t~ret23#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret23#1;havoc __utac_acc__Specification1_spec__1_#t~ret23#1; {878#false} is VALID [2022-02-21 04:15:36,740 INFO L290 TraceCheckUtils]: 19: Hoare triple {878#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); {878#false} is VALID [2022-02-21 04:15:36,741 INFO L290 TraceCheckUtils]: 20: Hoare triple {878#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {878#false} is VALID [2022-02-21 04:15:36,741 INFO L290 TraceCheckUtils]: 21: Hoare triple {878#false} assume { :end_inline_timeShift } true; {878#false} is VALID [2022-02-21 04:15:36,741 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 04:15:36,741 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:36,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279610447] [2022-02-21 04:15:36,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279610447] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:36,742 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:36,742 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:36,742 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516662464] [2022-02-21 04:15:36,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:36,743 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:36,743 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:36,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:36,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:36,744 INFO L87 Difference]: Start difference. First operand 168 states and 220 transitions. cyclomatic complexity: 54 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 04:15:36,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:36,997 INFO L93 Difference]: Finished difference Result 230 states and 289 transitions. [2022-02-21 04:15:36,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:36,997 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 04:15:37,016 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 04:15:37,017 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 230 states and 289 transitions. [2022-02-21 04:15:37,029 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 160 [2022-02-21 04:15:37,038 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 230 states to 230 states and 289 transitions. [2022-02-21 04:15:37,038 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 230 [2022-02-21 04:15:37,039 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 230 [2022-02-21 04:15:37,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 230 states and 289 transitions. [2022-02-21 04:15:37,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:37,042 INFO L681 BuchiCegarLoop]: Abstraction has 230 states and 289 transitions. [2022-02-21 04:15:37,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states and 289 transitions. [2022-02-21 04:15:37,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2022-02-21 04:15:37,058 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:37,059 INFO L82 GeneralOperation]: Start isEquivalent. First operand 230 states and 289 transitions. Second operand has 230 states, 230 states have (on average 1.2565217391304349) internal successors, (289), 229 states have internal predecessors, (289), 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 04:15:37,060 INFO L74 IsIncluded]: Start isIncluded. First operand 230 states and 289 transitions. Second operand has 230 states, 230 states have (on average 1.2565217391304349) internal successors, (289), 229 states have internal predecessors, (289), 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 04:15:37,060 INFO L87 Difference]: Start difference. First operand 230 states and 289 transitions. Second operand has 230 states, 230 states have (on average 1.2565217391304349) internal successors, (289), 229 states have internal predecessors, (289), 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 04:15:37,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:37,069 INFO L93 Difference]: Finished difference Result 230 states and 289 transitions. [2022-02-21 04:15:37,069 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 289 transitions. [2022-02-21 04:15:37,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:37,073 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:37,074 INFO L74 IsIncluded]: Start isIncluded. First operand has 230 states, 230 states have (on average 1.2565217391304349) internal successors, (289), 229 states have internal predecessors, (289), 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 230 states and 289 transitions. [2022-02-21 04:15:37,074 INFO L87 Difference]: Start difference. First operand has 230 states, 230 states have (on average 1.2565217391304349) internal successors, (289), 229 states have internal predecessors, (289), 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 230 states and 289 transitions. [2022-02-21 04:15:37,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:37,081 INFO L93 Difference]: Finished difference Result 230 states and 289 transitions. [2022-02-21 04:15:37,081 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 289 transitions. [2022-02-21 04:15:37,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:37,082 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:37,082 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:37,082 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:37,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 230 states have (on average 1.2565217391304349) internal successors, (289), 229 states have internal predecessors, (289), 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 04:15:37,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 289 transitions. [2022-02-21 04:15:37,088 INFO L704 BuchiCegarLoop]: Abstraction has 230 states and 289 transitions. [2022-02-21 04:15:37,088 INFO L587 BuchiCegarLoop]: Abstraction has 230 states and 289 transitions. [2022-02-21 04:15:37,088 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:15:37,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 230 states and 289 transitions. [2022-02-21 04:15:37,090 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 160 [2022-02-21 04:15:37,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:37,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:37,092 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:37,092 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:37,093 INFO L791 eck$LassoCheckResult]: Stem: 1286#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1196#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1116#L455 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1117#L448 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; 1197#L463 main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 1118#L419 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1119#L393 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; 1158#L65-2 [2022-02-21 04:15:37,093 INFO L793 eck$LassoCheckResult]: Loop: 1158#L65-2 assume !false; 1183#L66 assume test_~splverifierCounter~0#1 < 4; 1184#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1226#L75 assume !(0 != test_~tmp~0#1); 1202#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1189#L85 assume !(0 != test_~tmp___0~0#1); 1120#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1121#L95 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1270#L103 assume 0 != test_~tmp___1~0#1; 1213#L103-2 assume { :begin_inline_timeShift } true; 1230#L138 assume !(0 != ~pumpRunning~0); 1231#L138-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1232#L196 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 1211#L170-2 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~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1191#L587-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1192#L592-1 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; 1214#L315-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1215#L315-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1269#L321-1 processEnvironment__wrappee__methaneQuery_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret8#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1; 1128#L174-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1130#L162-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1161#L170-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1216#L196-1 assume { :end_inline_processEnvironment } true; 1240#L145-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret23#1, __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1233#L547-3 __utac_acc__Specification1_spec__1_#t~ret23#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret23#1;havoc __utac_acc__Specification1_spec__1_#t~ret23#1; 1234#L485 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 1256#L485-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1210#L155 assume { :end_inline_timeShift } true; 1158#L65-2 [2022-02-21 04:15:37,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:37,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:15:37,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:37,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068658405] [2022-02-21 04:15:37,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:37,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:37,120 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:37,141 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:37,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:37,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1357394763, now seen corresponding path program 1 times [2022-02-21 04:15:37,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:37,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065278185] [2022-02-21 04:15:37,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:37,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:37,150 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:37,157 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:37,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:37,158 INFO L85 PathProgramCache]: Analyzing trace with hash 106412815, now seen corresponding path program 1 times [2022-02-21 04:15:37,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:37,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305463403] [2022-02-21 04:15:37,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:37,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:37,173 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:37,189 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:40,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:40 BoogieIcfgContainer [2022-02-21 04:15:40,112 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:40,113 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:40,113 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:40,113 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:40,113 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:35" (3/4) ... [2022-02-21 04:15:40,115 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:40,159 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:40,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:40,160 INFO L158 Benchmark]: Toolchain (without parser) took 5678.01ms. Allocated memory was 107.0MB in the beginning and 192.9MB in the end (delta: 86.0MB). Free memory was 75.5MB in the beginning and 113.2MB in the end (delta: -37.7MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2022-02-21 04:15:40,162 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 107.0MB. Free memory was 62.5MB in the beginning and 62.4MB in the end (delta: 41.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:40,162 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.48ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 75.3MB in the beginning and 97.1MB in the end (delta: -21.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-21 04:15:40,163 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.52ms. Allocated memory is still 132.1MB. Free memory was 96.7MB in the beginning and 92.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:40,163 INFO L158 Benchmark]: Boogie Preprocessor took 61.71ms. Allocated memory is still 132.1MB. Free memory was 92.5MB in the beginning and 89.8MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:40,163 INFO L158 Benchmark]: RCFGBuilder took 666.61ms. Allocated memory is still 132.1MB. Free memory was 89.3MB in the beginning and 105.7MB in the end (delta: -16.4MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:40,164 INFO L158 Benchmark]: BuchiAutomizer took 4340.15ms. Allocated memory was 132.1MB in the beginning and 192.9MB in the end (delta: 60.8MB). Free memory was 105.7MB in the beginning and 115.3MB in the end (delta: -9.6MB). Peak memory consumption was 83.0MB. Max. memory is 16.1GB. [2022-02-21 04:15:40,164 INFO L158 Benchmark]: Witness Printer took 46.42ms. Allocated memory is still 192.9MB. Free memory was 115.3MB in the beginning and 113.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:40,166 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 107.0MB. Free memory was 62.5MB in the beginning and 62.4MB in the end (delta: 41.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 479.48ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 75.3MB in the beginning and 97.1MB in the end (delta: -21.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.52ms. Allocated memory is still 132.1MB. Free memory was 96.7MB in the beginning and 92.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.71ms. Allocated memory is still 132.1MB. Free memory was 92.5MB in the beginning and 89.8MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 666.61ms. Allocated memory is still 132.1MB. Free memory was 89.3MB in the beginning and 105.7MB in the end (delta: -16.4MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 4340.15ms. Allocated memory was 132.1MB in the beginning and 192.9MB in the end (delta: 60.8MB). Free memory was 105.7MB in the beginning and 115.3MB in the end (delta: -9.6MB). Peak memory consumption was 83.0MB. Max. memory is 16.1GB. * Witness Printer took 46.42ms. Allocated memory is still 192.9MB. Free memory was 115.3MB in the beginning and 113.2MB 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 3 locations. The remainder module has 230 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 230 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 388 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 388 mSDsluCounter, 526 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 93 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 433 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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, tmp=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b86f92b=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2807801f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e83c077=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@115adc9a=0, methaneLevelCritical=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a8aab3f=0, \result=0, retValue_acc=1, \result=1, \result=1, retValue_acc=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e1593ac=0, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12eb2c0c=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@605c6d56=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6dae518b=0, cleanupTimeShifts=4, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b69d48d=0, tmp=0, head=0, tmp___1=29, NULL=0, waterLevel=1, systemActive=1, tmp=0, \result=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 65]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L130] int pumpRunning = 0; [L131] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L504] int waterLevel = 1; [L505] int methaneLevelCritical = 0; [L767] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L410] int retValue_acc ; [L411] int tmp ; [L415] FCALL select_helpers() [L416] FCALL select_features() [L417] CALL, EXPR valid_product() [L459] int retValue_acc ; [L462] retValue_acc = 1 [L463] return (retValue_acc); [L417] RET, EXPR valid_product() [L417] tmp = valid_product() [L419] COND TRUE \read(tmp) [L421] FCALL setup() [L422] CALL runTest() [L401] 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 FALSE !(\read(tmp___2)) [L101] tmp___1 = __VERIFIER_nondet_int() [L103] COND TRUE \read(tmp___1) [L110] CALL timeShift() [L138] COND FALSE !(\read(pumpRunning)) [L145] COND TRUE \read(systemActive) [L147] CALL processEnvironment() [L193] int tmp ; [L196] COND FALSE !(\read(pumpRunning)) [L211] CALL processEnvironment__wrappee__methaneQuery() [L167] int tmp ; [L170] COND TRUE ! pumpRunning [L172] CALL, EXPR isHighWaterLevel() [L307] int retValue_acc ; [L308] int tmp ; [L309] int tmp___0 ; [L313] CALL, EXPR isHighWaterSensorDry() [L584] int retValue_acc ; [L587] COND TRUE waterLevel < 2 [L588] retValue_acc = 1 [L589] return (retValue_acc); [L313] RET, EXPR isHighWaterSensorDry() [L313] tmp = isHighWaterSensorDry() [L315] COND TRUE \read(tmp) [L316] tmp___0 = 0 [L320] retValue_acc = tmp___0 [L321] return (retValue_acc); [L172] RET, EXPR isHighWaterLevel() [L172] tmp = isHighWaterLevel() [L174] COND FALSE !(\read(tmp)) [L180] FCALL processEnvironment__wrappee__base() [L211] RET processEnvironment__wrappee__methaneQuery() [L147] RET processEnvironment() [L153] CALL __utac_acc__Specification1_spec__1() [L478] int tmp ; [L479] int tmp___0 ; [L483] CALL, EXPR isMethaneLevelCritical() [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); [L483] RET, EXPR isMethaneLevelCritical() [L483] tmp = isMethaneLevelCritical() [L485] COND FALSE !(\read(tmp)) [L153] RET __utac_acc__Specification1_spec__1() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:40,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)