./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product35.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_product35.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 d8d5749cb33f10edd647435755bf2e2192f6038b258c1bda289ea3f61ba8ee50 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:24,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:24,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:24,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:24,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:24,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:24,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:24,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:24,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:24,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:24,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:24,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:24,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:24,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:24,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:24,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:24,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:24,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:24,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:24,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:24,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:24,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:24,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:24,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:24,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:24,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:24,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:24,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:24,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:24,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:24,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:24,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:24,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:24,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:24,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:24,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:24,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:24,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:24,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:24,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:24,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:24,166 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:24,183 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:24,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:24,183 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:24,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:24,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:24,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:24,184 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:24,185 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:24,185 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:24,185 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:24,185 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:24,185 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:24,185 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:24,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:24,186 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:24,186 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:24,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:24,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:24,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:24,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:24,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:24,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:24,187 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:24,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:24,187 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:24,187 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:24,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:24,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:24,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:24,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:24,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:24,188 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:24,188 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8d5749cb33f10edd647435755bf2e2192f6038b258c1bda289ea3f61ba8ee50 [2022-02-21 04:15:24,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:24,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:24,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:24,439 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:24,440 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:24,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2022-02-21 04:15:24,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11fc8d90c/c9b33968eb694c15b46ba51d21683d54/FLAG7179a52bc [2022-02-21 04:15:24,909 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:24,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2022-02-21 04:15:24,923 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11fc8d90c/c9b33968eb694c15b46ba51d21683d54/FLAG7179a52bc [2022-02-21 04:15:24,936 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11fc8d90c/c9b33968eb694c15b46ba51d21683d54 [2022-02-21 04:15:24,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:24,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:24,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:24,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:24,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:24,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:24" (1/1) ... [2022-02-21 04:15:24,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ffb8f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:24, skipping insertion in model container [2022-02-21 04:15:24,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:24" (1/1) ... [2022-02-21 04:15:24,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:24,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:25,127 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_product35.cil.c[3064,3077] [2022-02-21 04:15:25,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:25,240 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:25,268 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_product35.cil.c[3064,3077] [2022-02-21 04:15:25,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:25,329 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:25,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:25 WrapperNode [2022-02-21 04:15:25,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:25,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:25,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:25,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:25,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:25" (1/1) ... [2022-02-21 04:15:25,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:25" (1/1) ... [2022-02-21 04:15:25,392 INFO L137 Inliner]: procedures = 53, calls = 151, calls flagged for inlining = 48, calls inlined = 49, statements flattened = 396 [2022-02-21 04:15:25,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:25,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:25,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:25,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:25,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:25" (1/1) ... [2022-02-21 04:15:25,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:25" (1/1) ... [2022-02-21 04:15:25,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:25" (1/1) ... [2022-02-21 04:15:25,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:25" (1/1) ... [2022-02-21 04:15:25,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:25" (1/1) ... [2022-02-21 04:15:25,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:25" (1/1) ... [2022-02-21 04:15:25,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:25" (1/1) ... [2022-02-21 04:15:25,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:25,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:25,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:25,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:25,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:25" (1/1) ... [2022-02-21 04:15:25,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:25,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:25,498 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 04:15:25,502 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 04:15:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:25,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:25,681 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:25,683 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:26,097 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:26,102 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:26,105 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:26,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:26 BoogieIcfgContainer [2022-02-21 04:15:26,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:26,109 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:26,110 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:26,112 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:26,113 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:26,113 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:24" (1/3) ... [2022-02-21 04:15:26,114 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6086abe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:26, skipping insertion in model container [2022-02-21 04:15:26,115 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:26,115 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:25" (2/3) ... [2022-02-21 04:15:26,115 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6086abe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:26, skipping insertion in model container [2022-02-21 04:15:26,115 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:26,115 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:26" (3/3) ... [2022-02-21 04:15:26,116 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2022-02-21 04:15:26,155 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:26,155 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:26,155 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:26,155 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:26,155 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:26,155 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:26,155 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:26,156 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:26,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.3796296296296295) internal successors, (149), 108 states have internal predecessors, (149), 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 04:15:26,224 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 70 [2022-02-21 04:15:26,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:26,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:26,247 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:26,247 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:26,247 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:26,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.3796296296296295) internal successors, (149), 108 states have internal predecessors, (149), 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 04:15:26,263 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 70 [2022-02-21 04:15:26,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:26,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:26,264 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:26,265 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:26,271 INFO L791 eck$LassoCheckResult]: Stem: 103#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 37#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 73#L452true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 35#L445true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 55#L460true main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 29#L547true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 22#L524true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 78#L200-2true [2022-02-21 04:15:26,272 INFO L793 eck$LassoCheckResult]: Loop: 78#L200-2true assume !false; 64#L201true assume test_~splverifierCounter~0#1 < 4; 81#L202true test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 10#L210true assume !(0 != test_~tmp~1#1); 105#L210-2true test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 66#L220true assume !(0 != test_~tmp___0~1#1); 42#L220-2true test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 74#L230true assume 0 != test_~tmp___2~0#1; 58#L236-2true assume { :begin_inline_timeShift } true; 21#L267true assume !(0 != ~pumpRunning~0); 83#L267-2true assume !(0 != ~systemActive~0); 76#L274-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 53#L100true __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; 57#L169true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 47#L169-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 62#L284true assume { :end_inline_timeShift } true; 78#L200-2true [2022-02-21 04:15:26,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:26,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:26,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:26,293 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698652586] [2022-02-21 04:15:26,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:26,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:26,408 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:26,459 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:26,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:26,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1486867772, now seen corresponding path program 1 times [2022-02-21 04:15:26,462 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:26,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937724862] [2022-02-21 04:15:26,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:26,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:26,482 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:26,487 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:26,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:26,488 INFO L85 PathProgramCache]: Analyzing trace with hash -131448696, now seen corresponding path program 1 times [2022-02-21 04:15:26,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:26,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109674088] [2022-02-21 04:15:26,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:26,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:26,626 INFO L290 TraceCheckUtils]: 0: Hoare triple {117#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {119#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:26,627 INFO L290 TraceCheckUtils]: 1: Hoare triple {119#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; {119#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:26,628 INFO L290 TraceCheckUtils]: 2: Hoare triple {119#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {119#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:26,628 INFO L290 TraceCheckUtils]: 3: Hoare triple {119#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; {120#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:15:26,629 INFO L290 TraceCheckUtils]: 4: Hoare triple {120#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret27#1;havoc main_#t~ret27#1; {121#(= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0)} is VALID [2022-02-21 04:15:26,629 INFO L290 TraceCheckUtils]: 5: Hoare triple {121#(= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0)} assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:26,630 INFO L290 TraceCheckUtils]: 6: Hoare triple {122#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:26,630 INFO L290 TraceCheckUtils]: 7: Hoare triple {122#(not (= 0 ~systemActive~0))} assume !false; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:26,631 INFO L290 TraceCheckUtils]: 8: Hoare triple {122#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:26,632 INFO L290 TraceCheckUtils]: 9: Hoare triple {122#(not (= 0 ~systemActive~0))} test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:26,632 INFO L290 TraceCheckUtils]: 10: Hoare triple {122#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~1#1); {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:26,633 INFO L290 TraceCheckUtils]: 11: Hoare triple {122#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:26,633 INFO L290 TraceCheckUtils]: 12: Hoare triple {122#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:26,634 INFO L290 TraceCheckUtils]: 13: Hoare triple {122#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:26,634 INFO L290 TraceCheckUtils]: 14: Hoare triple {122#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:26,635 INFO L290 TraceCheckUtils]: 15: Hoare triple {122#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:26,635 INFO L290 TraceCheckUtils]: 16: Hoare triple {122#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:26,636 INFO L290 TraceCheckUtils]: 17: Hoare triple {122#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {118#false} is VALID [2022-02-21 04:15:26,636 INFO L290 TraceCheckUtils]: 18: Hoare triple {118#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {118#false} is VALID [2022-02-21 04:15:26,637 INFO L290 TraceCheckUtils]: 19: Hoare triple {118#false} __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; {118#false} is VALID [2022-02-21 04:15:26,637 INFO L290 TraceCheckUtils]: 20: Hoare triple {118#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); {118#false} is VALID [2022-02-21 04:15:26,638 INFO L290 TraceCheckUtils]: 21: Hoare triple {118#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {118#false} is VALID [2022-02-21 04:15:26,638 INFO L290 TraceCheckUtils]: 22: Hoare triple {118#false} assume { :end_inline_timeShift } true; {118#false} is VALID [2022-02-21 04:15:26,639 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 04:15:26,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:26,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109674088] [2022-02-21 04:15:26,640 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109674088] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:26,640 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:26,640 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:26,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228428723] [2022-02-21 04:15:26,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:26,748 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:26,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:15:26,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:15:26,771 INFO L87 Difference]: Start difference. First operand has 109 states, 108 states have (on average 1.3796296296296295) internal successors, (149), 108 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:27,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:27,317 INFO L93 Difference]: Finished difference Result 269 states and 347 transitions. [2022-02-21 04:15:27,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:15:27,318 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:27,337 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:27,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 269 states and 347 transitions. [2022-02-21 04:15:27,350 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 171 [2022-02-21 04:15:27,358 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 269 states to 239 states and 317 transitions. [2022-02-21 04:15:27,359 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 239 [2022-02-21 04:15:27,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 239 [2022-02-21 04:15:27,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 239 states and 317 transitions. [2022-02-21 04:15:27,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:27,361 INFO L681 BuchiCegarLoop]: Abstraction has 239 states and 317 transitions. [2022-02-21 04:15:27,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states and 317 transitions. [2022-02-21 04:15:27,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 148. [2022-02-21 04:15:27,382 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:27,383 INFO L82 GeneralOperation]: Start isEquivalent. First operand 239 states and 317 transitions. Second operand has 148 states, 148 states have (on average 1.3243243243243243) internal successors, (196), 147 states have internal predecessors, (196), 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 04:15:27,384 INFO L74 IsIncluded]: Start isIncluded. First operand 239 states and 317 transitions. Second operand has 148 states, 148 states have (on average 1.3243243243243243) internal successors, (196), 147 states have internal predecessors, (196), 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 04:15:27,385 INFO L87 Difference]: Start difference. First operand 239 states and 317 transitions. Second operand has 148 states, 148 states have (on average 1.3243243243243243) internal successors, (196), 147 states have internal predecessors, (196), 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 04:15:27,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:27,401 INFO L93 Difference]: Finished difference Result 239 states and 317 transitions. [2022-02-21 04:15:27,401 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 317 transitions. [2022-02-21 04:15:27,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:27,403 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:27,403 INFO L74 IsIncluded]: Start isIncluded. First operand has 148 states, 148 states have (on average 1.3243243243243243) internal successors, (196), 147 states have internal predecessors, (196), 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 239 states and 317 transitions. [2022-02-21 04:15:27,404 INFO L87 Difference]: Start difference. First operand has 148 states, 148 states have (on average 1.3243243243243243) internal successors, (196), 147 states have internal predecessors, (196), 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 239 states and 317 transitions. [2022-02-21 04:15:27,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:27,411 INFO L93 Difference]: Finished difference Result 239 states and 317 transitions. [2022-02-21 04:15:27,411 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 317 transitions. [2022-02-21 04:15:27,412 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:27,412 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:27,412 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:27,413 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:27,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 148 states have (on average 1.3243243243243243) internal successors, (196), 147 states have internal predecessors, (196), 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 04:15:27,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2022-02-21 04:15:27,418 INFO L704 BuchiCegarLoop]: Abstraction has 148 states and 196 transitions. [2022-02-21 04:15:27,418 INFO L587 BuchiCegarLoop]: Abstraction has 148 states and 196 transitions. [2022-02-21 04:15:27,418 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:27,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 196 transitions. [2022-02-21 04:15:27,419 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 106 [2022-02-21 04:15:27,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:27,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:27,420 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:27,420 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] [2022-02-21 04:15:27,420 INFO L791 eck$LassoCheckResult]: Stem: 480#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 474#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 406#L452 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 407#L445 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 473#L460 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 464#L547 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 452#L524 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 434#L200-2 [2022-02-21 04:15:27,421 INFO L793 eck$LassoCheckResult]: Loop: 434#L200-2 assume !false; 435#L201 assume test_~splverifierCounter~0#1 < 4; 440#L202 test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 416#L210 assume !(0 != test_~tmp~1#1); 418#L210-2 test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 485#L220 assume !(0 != test_~tmp___0~1#1); 399#L220-2 test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 408#L230 assume 0 != test_~tmp___2~0#1; 410#L236-2 assume { :begin_inline_timeShift } true; 451#L267 assume !(0 != ~pumpRunning~0); 443#L267-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 445#L299 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 469#L291-1 assume { :end_inline_processEnvironment__wrappee__base } true; 424#L299-1 assume { :end_inline_processEnvironment } true; 421#L274-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 422#L100 __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; 489#L169 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 482#L169-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 483#L284 assume { :end_inline_timeShift } true; 434#L200-2 [2022-02-21 04:15:27,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:27,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:27,421 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:27,422 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653418024] [2022-02-21 04:15:27,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:27,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:27,450 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:27,458 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:27,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:27,463 INFO L85 PathProgramCache]: Analyzing trace with hash 101413134, now seen corresponding path program 1 times [2022-02-21 04:15:27,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:27,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105090325] [2022-02-21 04:15:27,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:27,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:27,484 INFO L290 TraceCheckUtils]: 0: Hoare triple {1027#true} assume !false; {1027#true} is VALID [2022-02-21 04:15:27,484 INFO L290 TraceCheckUtils]: 1: Hoare triple {1027#true} assume test_~splverifierCounter~0#1 < 4; {1027#true} is VALID [2022-02-21 04:15:27,485 INFO L290 TraceCheckUtils]: 2: Hoare triple {1027#true} test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; {1027#true} is VALID [2022-02-21 04:15:27,485 INFO L290 TraceCheckUtils]: 3: Hoare triple {1027#true} assume !(0 != test_~tmp~1#1); {1027#true} is VALID [2022-02-21 04:15:27,485 INFO L290 TraceCheckUtils]: 4: Hoare triple {1027#true} test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; {1027#true} is VALID [2022-02-21 04:15:27,485 INFO L290 TraceCheckUtils]: 5: Hoare triple {1027#true} assume !(0 != test_~tmp___0~1#1); {1027#true} is VALID [2022-02-21 04:15:27,485 INFO L290 TraceCheckUtils]: 6: Hoare triple {1027#true} test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; {1027#true} is VALID [2022-02-21 04:15:27,485 INFO L290 TraceCheckUtils]: 7: Hoare triple {1027#true} assume 0 != test_~tmp___2~0#1; {1027#true} is VALID [2022-02-21 04:15:27,486 INFO L290 TraceCheckUtils]: 8: Hoare triple {1027#true} assume { :begin_inline_timeShift } true; {1027#true} is VALID [2022-02-21 04:15:27,486 INFO L290 TraceCheckUtils]: 9: Hoare triple {1027#true} assume !(0 != ~pumpRunning~0); {1029#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:27,486 INFO L290 TraceCheckUtils]: 10: Hoare triple {1029#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {1029#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:27,487 INFO L290 TraceCheckUtils]: 11: Hoare triple {1029#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1028#false} is VALID [2022-02-21 04:15:27,487 INFO L290 TraceCheckUtils]: 12: Hoare triple {1028#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1028#false} is VALID [2022-02-21 04:15:27,487 INFO L290 TraceCheckUtils]: 13: Hoare triple {1028#false} assume { :end_inline_processEnvironment } true; {1028#false} is VALID [2022-02-21 04:15:27,487 INFO L290 TraceCheckUtils]: 14: Hoare triple {1028#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {1028#false} is VALID [2022-02-21 04:15:27,488 INFO L290 TraceCheckUtils]: 15: Hoare triple {1028#false} __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; {1028#false} is VALID [2022-02-21 04:15:27,488 INFO L290 TraceCheckUtils]: 16: Hoare triple {1028#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); {1028#false} is VALID [2022-02-21 04:15:27,488 INFO L290 TraceCheckUtils]: 17: Hoare triple {1028#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {1028#false} is VALID [2022-02-21 04:15:27,488 INFO L290 TraceCheckUtils]: 18: Hoare triple {1028#false} assume { :end_inline_timeShift } true; {1028#false} is VALID [2022-02-21 04:15:27,488 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 04:15:27,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:27,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105090325] [2022-02-21 04:15:27,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105090325] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:27,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:27,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:27,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320471851] [2022-02-21 04:15:27,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:27,490 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:27,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:27,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:27,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:27,491 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. cyclomatic complexity: 51 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 04:15:27,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:27,618 INFO L93 Difference]: Finished difference Result 195 states and 247 transitions. [2022-02-21 04:15:27,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:27,618 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 04:15:27,630 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:27,631 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 247 transitions. [2022-02-21 04:15:27,636 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 143 [2022-02-21 04:15:27,641 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 195 states and 247 transitions. [2022-02-21 04:15:27,641 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2022-02-21 04:15:27,641 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2022-02-21 04:15:27,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 247 transitions. [2022-02-21 04:15:27,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:27,642 INFO L681 BuchiCegarLoop]: Abstraction has 195 states and 247 transitions. [2022-02-21 04:15:27,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 247 transitions. [2022-02-21 04:15:27,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2022-02-21 04:15:27,647 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:27,647 INFO L82 GeneralOperation]: Start isEquivalent. First operand 195 states and 247 transitions. Second operand has 195 states, 195 states have (on average 1.2666666666666666) internal successors, (247), 194 states have internal predecessors, (247), 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 04:15:27,648 INFO L74 IsIncluded]: Start isIncluded. First operand 195 states and 247 transitions. Second operand has 195 states, 195 states have (on average 1.2666666666666666) internal successors, (247), 194 states have internal predecessors, (247), 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 04:15:27,648 INFO L87 Difference]: Start difference. First operand 195 states and 247 transitions. Second operand has 195 states, 195 states have (on average 1.2666666666666666) internal successors, (247), 194 states have internal predecessors, (247), 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 04:15:27,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:27,653 INFO L93 Difference]: Finished difference Result 195 states and 247 transitions. [2022-02-21 04:15:27,653 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 247 transitions. [2022-02-21 04:15:27,654 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:27,654 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:27,654 INFO L74 IsIncluded]: Start isIncluded. First operand has 195 states, 195 states have (on average 1.2666666666666666) internal successors, (247), 194 states have internal predecessors, (247), 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 195 states and 247 transitions. [2022-02-21 04:15:27,655 INFO L87 Difference]: Start difference. First operand has 195 states, 195 states have (on average 1.2666666666666666) internal successors, (247), 194 states have internal predecessors, (247), 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 195 states and 247 transitions. [2022-02-21 04:15:27,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:27,659 INFO L93 Difference]: Finished difference Result 195 states and 247 transitions. [2022-02-21 04:15:27,659 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 247 transitions. [2022-02-21 04:15:27,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:27,660 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:27,660 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:27,660 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:27,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 195 states have (on average 1.2666666666666666) internal successors, (247), 194 states have internal predecessors, (247), 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 04:15:27,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 247 transitions. [2022-02-21 04:15:27,665 INFO L704 BuchiCegarLoop]: Abstraction has 195 states and 247 transitions. [2022-02-21 04:15:27,665 INFO L587 BuchiCegarLoop]: Abstraction has 195 states and 247 transitions. [2022-02-21 04:15:27,665 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:15:27,665 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 195 states and 247 transitions. [2022-02-21 04:15:27,666 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 143 [2022-02-21 04:15:27,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:27,666 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:27,667 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:27,667 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] [2022-02-21 04:15:27,667 INFO L791 eck$LassoCheckResult]: Stem: 1318#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1310#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 1235#L452 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1236#L445 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 1308#L460 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 1298#L547 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1284#L524 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1285#L200-2 [2022-02-21 04:15:27,667 INFO L793 eck$LassoCheckResult]: Loop: 1285#L200-2 assume !false; 1395#L201 assume test_~splverifierCounter~0#1 < 4; 1396#L202 test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 1412#L210 assume !(0 != test_~tmp~1#1); 1410#L210-2 test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 1408#L220 assume !(0 != test_~tmp___0~1#1); 1406#L220-2 test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 1237#L230 assume 0 != test_~tmp___2~0#1; 1239#L236-2 assume { :begin_inline_timeShift } true; 1283#L267 assume !(0 != ~pumpRunning~0); 1274#L267-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1275#L299 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1303#L140 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1326#L145 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 1243#L401 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1244#L401-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 1256#L407 processEnvironment_#t~ret15#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret15#1;havoc processEnvironment_#t~ret15#1; 1257#L303 assume !(0 != processEnvironment_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1252#L291 assume { :end_inline_processEnvironment__wrappee__base } true; 1253#L299-1 assume { :end_inline_processEnvironment } true; 1250#L274-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1251#L100 __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; 1327#L169 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 1320#L169-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1321#L284 assume { :end_inline_timeShift } true; 1285#L200-2 [2022-02-21 04:15:27,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:27,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:15:27,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:27,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890438194] [2022-02-21 04:15:27,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:27,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:27,676 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:27,685 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:27,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:27,686 INFO L85 PathProgramCache]: Analyzing trace with hash 477063094, now seen corresponding path program 1 times [2022-02-21 04:15:27,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:27,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234672043] [2022-02-21 04:15:27,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:27,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:27,691 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:27,696 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:27,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:27,696 INFO L85 PathProgramCache]: Analyzing trace with hash -773941646, now seen corresponding path program 1 times [2022-02-21 04:15:27,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:27,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992418384] [2022-02-21 04:15:27,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:27,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:27,707 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:27,718 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:30,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:30 BoogieIcfgContainer [2022-02-21 04:15:30,130 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:30,130 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:30,130 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:30,130 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:30,131 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:26" (3/4) ... [2022-02-21 04:15:30,133 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:30,162 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:30,162 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:30,163 INFO L158 Benchmark]: Toolchain (without parser) took 5223.48ms. Allocated memory was 102.8MB in the beginning and 213.9MB in the end (delta: 111.1MB). Free memory was 63.1MB in the beginning and 70.7MB in the end (delta: -7.5MB). Peak memory consumption was 101.8MB. Max. memory is 16.1GB. [2022-02-21 04:15:30,164 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:30,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.48ms. Allocated memory is still 102.8MB. Free memory was 63.0MB in the beginning and 67.9MB in the end (delta: -4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:30,164 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.65ms. Allocated memory is still 102.8MB. Free memory was 67.9MB in the beginning and 64.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:30,164 INFO L158 Benchmark]: Boogie Preprocessor took 54.67ms. Allocated memory is still 102.8MB. Free memory was 64.5MB in the beginning and 62.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:30,165 INFO L158 Benchmark]: RCFGBuilder took 655.80ms. Allocated memory is still 102.8MB. Free memory was 62.7MB in the beginning and 42.0MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-02-21 04:15:30,165 INFO L158 Benchmark]: BuchiAutomizer took 4021.19ms. Allocated memory was 102.8MB in the beginning and 213.9MB in the end (delta: 111.1MB). Free memory was 41.7MB in the beginning and 72.8MB in the end (delta: -31.1MB). Peak memory consumption was 93.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:30,165 INFO L158 Benchmark]: Witness Printer took 32.16ms. Allocated memory is still 213.9MB. Free memory was 72.8MB in the beginning and 70.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:30,167 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 0.22ms. Allocated memory is still 102.8MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.48ms. Allocated memory is still 102.8MB. Free memory was 63.0MB in the beginning and 67.9MB in the end (delta: -4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.65ms. Allocated memory is still 102.8MB. Free memory was 67.9MB in the beginning and 64.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.67ms. Allocated memory is still 102.8MB. Free memory was 64.5MB in the beginning and 62.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 655.80ms. Allocated memory is still 102.8MB. Free memory was 62.7MB in the beginning and 42.0MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 4021.19ms. Allocated memory was 102.8MB in the beginning and 213.9MB in the end (delta: 111.1MB). Free memory was 41.7MB in the beginning and 72.8MB in the end (delta: -31.1MB). Peak memory consumption was 93.3MB. Max. memory is 16.1GB. * Witness Printer took 32.16ms. Allocated memory is still 213.9MB. Free memory was 72.8MB in the beginning and 70.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 195 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 91 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 195 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 720 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 720 mSDsluCounter, 939 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 678 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 261 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 200]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53e7f468=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f9dbf45=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6979bfba=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ce39008=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23eadbd7=0, retValue_acc=1, methaneLevelCritical=0, \result=0, retValue_acc=1, retValue_acc=0, \result=1, retValue_acc=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4cae7a5a=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38641a2c=0, tmp=1, tmp___2=29, tmp=0, tmp=1, cleanupTimeShifts=4, \result=0, tmp=0, head=0, retValue_acc=0, tmp___1=0, NULL=0, tmp=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@422ad583=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44e01585=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 200]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L260] int pumpRunning = 0; [L261] int systemActive = 1; [L465] int cleanupTimeShifts = 4; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L538] int retValue_acc ; [L539] int tmp ; [L543] FCALL select_helpers() [L544] FCALL select_features() [L545] CALL, EXPR valid_product() [L456] int retValue_acc ; [L459] retValue_acc = 1 [L460] return (retValue_acc); [L545] RET, EXPR valid_product() [L545] tmp = valid_product() [L547] COND TRUE \read(tmp) [L549] FCALL setup() [L550] CALL runTest() [L532] CALL test() [L191] int splverifierCounter ; [L192] int tmp ; [L193] int tmp___0 ; [L194] int tmp___1 ; [L195] int tmp___2 ; [L198] splverifierCounter = 0 Loop: [L200] COND TRUE 1 [L202] COND TRUE splverifierCounter < 4 [L208] tmp = __VERIFIER_nondet_int() [L210] COND FALSE !(\read(tmp)) [L218] tmp___0 = __VERIFIER_nondet_int() [L220] COND FALSE !(\read(tmp___0)) [L228] tmp___2 = __VERIFIER_nondet_int() [L230] COND TRUE \read(tmp___2) [L245] CALL timeShift() [L267] COND FALSE !(\read(pumpRunning)) [L274] COND TRUE \read(systemActive) [L276] CALL processEnvironment() [L296] int tmp ; [L299] COND TRUE ! pumpRunning [L301] CALL, EXPR isHighWaterLevel() [L393] int retValue_acc ; [L394] int tmp ; [L395] int tmp___0 ; [L399] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L399] RET, EXPR isHighWaterSensorDry() [L399] tmp = isHighWaterSensorDry() [L401] COND TRUE \read(tmp) [L402] tmp___0 = 0 [L406] retValue_acc = tmp___0 [L407] return (retValue_acc); [L301] RET, EXPR isHighWaterLevel() [L301] tmp = isHighWaterLevel() [L303] COND FALSE !(\read(tmp)) [L309] FCALL processEnvironment__wrappee__base() [L276] RET processEnvironment() [L282] CALL __utac_acc__Specification1_spec__1() [L162] int tmp ; [L163] int tmp___0 ; [L167] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L167] RET, EXPR isMethaneLevelCritical() [L167] tmp = isMethaneLevelCritical() [L169] COND FALSE !(\read(tmp)) [L282] RET __utac_acc__Specification1_spec__1() [L245] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:30,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)