./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product44.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_spec5_product44.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 f18c518732faf536b365bed3360055c2f4eb753a861011ef1bbe74f5b721db8d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:46,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:46,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:47,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:47,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:47,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:47,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:47,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:47,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:47,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:47,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:47,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:47,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:47,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:47,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:47,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:47,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:47,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:47,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:47,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:47,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:47,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:47,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:47,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:47,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:47,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:47,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:47,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:47,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:47,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:47,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:47,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:47,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:47,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:47,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:47,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:47,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:47,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:47,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:47,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:47,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:47,040 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:47,061 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:47,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:47,061 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:47,061 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:47,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:47,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:47,063 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:47,063 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:47,063 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:47,063 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:47,064 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:47,064 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:47,064 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:47,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:47,064 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:47,065 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:47,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:47,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:47,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:47,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:47,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:47,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:47,066 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:47,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:47,066 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:47,067 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:47,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:47,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:47,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:47,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:47,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:47,074 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:47,075 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f18c518732faf536b365bed3360055c2f4eb753a861011ef1bbe74f5b721db8d [2022-02-21 04:18:47,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:47,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:47,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:47,324 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:47,324 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:47,325 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c [2022-02-21 04:18:47,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85570a638/caf2ec668b5641f38fbe4bffc448a0e0/FLAGc86179e2f [2022-02-21 04:18:47,826 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:47,830 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c [2022-02-21 04:18:47,847 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85570a638/caf2ec668b5641f38fbe4bffc448a0e0/FLAGc86179e2f [2022-02-21 04:18:48,179 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85570a638/caf2ec668b5641f38fbe4bffc448a0e0 [2022-02-21 04:18:48,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:48,183 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:48,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:48,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:48,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:48,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:48" (1/1) ... [2022-02-21 04:18:48,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d54e884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:48, skipping insertion in model container [2022-02-21 04:18:48,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:48" (1/1) ... [2022-02-21 04:18:48,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:48,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:48,483 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_spec5_product44.cil.c[18005,18018] [2022-02-21 04:18:48,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:48,494 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:48,558 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_spec5_product44.cil.c[18005,18018] [2022-02-21 04:18:48,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:48,576 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:48,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:48 WrapperNode [2022-02-21 04:18:48,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:48,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:48,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:48,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:48,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:48" (1/1) ... [2022-02-21 04:18:48,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:48" (1/1) ... [2022-02-21 04:18:48,641 INFO L137 Inliner]: procedures = 57, calls = 157, calls flagged for inlining = 54, calls inlined = 66, statements flattened = 502 [2022-02-21 04:18:48,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:48,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:48,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:48,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:48,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:48" (1/1) ... [2022-02-21 04:18:48,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:48" (1/1) ... [2022-02-21 04:18:48,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:48" (1/1) ... [2022-02-21 04:18:48,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:48" (1/1) ... [2022-02-21 04:18:48,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:48" (1/1) ... [2022-02-21 04:18:48,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:48" (1/1) ... [2022-02-21 04:18:48,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:48" (1/1) ... [2022-02-21 04:18:48,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:48,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:48,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:48,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:48,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:48" (1/1) ... [2022-02-21 04:18:48,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:48,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:48,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:18:48,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:18:48,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:48,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:48,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:48,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:48,803 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:48,804 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:49,212 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:49,218 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:49,222 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:49,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:49 BoogieIcfgContainer [2022-02-21 04:18:49,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:49,227 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:49,227 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:49,229 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:49,230 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:49,230 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:48" (1/3) ... [2022-02-21 04:18:49,231 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46b1ce45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:49, skipping insertion in model container [2022-02-21 04:18:49,231 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:49,231 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:48" (2/3) ... [2022-02-21 04:18:49,231 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46b1ce45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:49, skipping insertion in model container [2022-02-21 04:18:49,231 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:49,231 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:49" (3/3) ... [2022-02-21 04:18:49,232 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product44.cil.c [2022-02-21 04:18:49,267 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:49,267 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:49,267 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:49,267 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:49,267 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:49,267 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:49,267 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:49,267 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:49,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 132 states, 131 states have (on average 1.3587786259541985) internal successors, (178), 131 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:49,320 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2022-02-21 04:18:49,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:49,321 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:49,327 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:49,327 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 04:18:49,327 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:49,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 132 states, 131 states have (on average 1.3587786259541985) internal successors, (178), 131 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:49,347 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2022-02-21 04:18:49,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:49,347 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:49,348 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:49,348 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 04:18:49,352 INFO L791 eck$LassoCheckResult]: Stem: 118#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 31#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 49#L817true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4#L810true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 122#L825true main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 76#L914true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 10#L889true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 106#L943true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 132#L733-2true [2022-02-21 04:18:49,353 INFO L793 eck$LassoCheckResult]: Loop: 132#L733-2true assume !false; 93#L734true assume test_~splverifierCounter~0#1 < 4; 124#L735true test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 48#L743true assume !(0 != test_~tmp~6#1); 64#L743-2true test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 129#L753true assume !(0 != test_~tmp___0~1#1); 81#L753-2true test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 65#L763true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 88#L718true assume { :end_inline_startSystem } true; 55#L771-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; 26#L639true __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 133#L953true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 58#L536true assume !(0 != ~pumpRunning~0); 66#L536-2true assume !(0 != ~systemActive~0); 91#L543-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 125#L132true __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 70#L964true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 32#L964-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 74#L553true assume { :end_inline_timeShift } true; 132#L733-2true [2022-02-21 04:18:49,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:49,361 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:49,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:49,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325743568] [2022-02-21 04:18:49,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:49,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:49,491 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:49,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:49,544 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:49,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:49,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1670349909, now seen corresponding path program 1 times [2022-02-21 04:18:49,547 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:49,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934742782] [2022-02-21 04:18:49,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:49,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:49,653 INFO L290 TraceCheckUtils]: 0: Hoare triple {138#true} assume !false; {138#true} is VALID [2022-02-21 04:18:49,653 INFO L290 TraceCheckUtils]: 1: Hoare triple {138#true} assume test_~splverifierCounter~0#1 < 4; {138#true} is VALID [2022-02-21 04:18:49,653 INFO L290 TraceCheckUtils]: 2: Hoare triple {138#true} test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; {138#true} is VALID [2022-02-21 04:18:49,654 INFO L290 TraceCheckUtils]: 3: Hoare triple {138#true} assume !(0 != test_~tmp~6#1); {138#true} is VALID [2022-02-21 04:18:49,654 INFO L290 TraceCheckUtils]: 4: Hoare triple {138#true} test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; {138#true} is VALID [2022-02-21 04:18:49,659 INFO L290 TraceCheckUtils]: 5: Hoare triple {138#true} assume !(0 != test_~tmp___0~1#1); {138#true} is VALID [2022-02-21 04:18:49,659 INFO L290 TraceCheckUtils]: 6: Hoare triple {138#true} test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; {138#true} is VALID [2022-02-21 04:18:49,660 INFO L290 TraceCheckUtils]: 7: Hoare triple {138#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {140#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:49,660 INFO L290 TraceCheckUtils]: 8: Hoare triple {140#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {140#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:49,661 INFO L290 TraceCheckUtils]: 9: Hoare triple {140#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; {140#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:49,661 INFO L290 TraceCheckUtils]: 10: Hoare triple {140#(<= 1 ~systemActive~0)} __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; {140#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:49,662 INFO L290 TraceCheckUtils]: 11: Hoare triple {140#(<= 1 ~systemActive~0)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {140#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:49,662 INFO L290 TraceCheckUtils]: 12: Hoare triple {140#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {140#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:49,666 INFO L290 TraceCheckUtils]: 13: Hoare triple {140#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {139#false} is VALID [2022-02-21 04:18:49,666 INFO L290 TraceCheckUtils]: 14: Hoare triple {139#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {139#false} is VALID [2022-02-21 04:18:49,667 INFO L290 TraceCheckUtils]: 15: Hoare triple {139#false} __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; {139#false} is VALID [2022-02-21 04:18:49,667 INFO L290 TraceCheckUtils]: 16: Hoare triple {139#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); {139#false} is VALID [2022-02-21 04:18:49,667 INFO L290 TraceCheckUtils]: 17: Hoare triple {139#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {139#false} is VALID [2022-02-21 04:18:49,667 INFO L290 TraceCheckUtils]: 18: Hoare triple {139#false} assume { :end_inline_timeShift } true; {139#false} is VALID [2022-02-21 04:18:49,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:49,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:49,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934742782] [2022-02-21 04:18:49,670 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934742782] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:49,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:49,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:49,684 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087687420] [2022-02-21 04:18:49,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:49,688 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:49,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:49,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:49,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:49,733 INFO L87 Difference]: Start difference. First operand has 132 states, 131 states have (on average 1.3587786259541985) internal successors, (178), 131 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 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 04:18:50,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:50,032 INFO L93 Difference]: Finished difference Result 248 states and 322 transitions. [2022-02-21 04:18:50,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:50,033 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 04:18:50,049 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 04:18:50,057 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 248 states and 322 transitions. [2022-02-21 04:18:50,076 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 160 [2022-02-21 04:18:50,089 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 248 states to 228 states and 301 transitions. [2022-02-21 04:18:50,090 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 228 [2022-02-21 04:18:50,090 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 228 [2022-02-21 04:18:50,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 228 states and 301 transitions. [2022-02-21 04:18:50,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:50,098 INFO L681 BuchiCegarLoop]: Abstraction has 228 states and 301 transitions. [2022-02-21 04:18:50,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states and 301 transitions. [2022-02-21 04:18:50,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 225. [2022-02-21 04:18:50,144 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:50,150 INFO L82 GeneralOperation]: Start isEquivalent. First operand 228 states and 301 transitions. Second operand has 225 states, 225 states have (on average 1.32) internal successors, (297), 224 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:50,153 INFO L74 IsIncluded]: Start isIncluded. First operand 228 states and 301 transitions. Second operand has 225 states, 225 states have (on average 1.32) internal successors, (297), 224 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:50,156 INFO L87 Difference]: Start difference. First operand 228 states and 301 transitions. Second operand has 225 states, 225 states have (on average 1.32) internal successors, (297), 224 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:50,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:50,169 INFO L93 Difference]: Finished difference Result 228 states and 301 transitions. [2022-02-21 04:18:50,170 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 301 transitions. [2022-02-21 04:18:50,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:50,179 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:50,180 INFO L74 IsIncluded]: Start isIncluded. First operand has 225 states, 225 states have (on average 1.32) internal successors, (297), 224 states have internal predecessors, (297), 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 228 states and 301 transitions. [2022-02-21 04:18:50,181 INFO L87 Difference]: Start difference. First operand has 225 states, 225 states have (on average 1.32) internal successors, (297), 224 states have internal predecessors, (297), 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 228 states and 301 transitions. [2022-02-21 04:18:50,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:50,189 INFO L93 Difference]: Finished difference Result 228 states and 301 transitions. [2022-02-21 04:18:50,189 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 301 transitions. [2022-02-21 04:18:50,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:50,195 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:50,195 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:50,201 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:50,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 225 states have (on average 1.32) internal successors, (297), 224 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 297 transitions. [2022-02-21 04:18:50,215 INFO L704 BuchiCegarLoop]: Abstraction has 225 states and 297 transitions. [2022-02-21 04:18:50,215 INFO L587 BuchiCegarLoop]: Abstraction has 225 states and 297 transitions. [2022-02-21 04:18:50,216 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:50,216 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 225 states and 297 transitions. [2022-02-21 04:18:50,218 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 157 [2022-02-21 04:18:50,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:50,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:50,219 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:50,219 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:50,219 INFO L791 eck$LassoCheckResult]: Stem: 514#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 439#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 440#L817 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 389#L810 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 390#L825 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 493#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 401#L889 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 402#L943 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 507#L733-2 [2022-02-21 04:18:50,220 INFO L793 eck$LassoCheckResult]: Loop: 507#L733-2 assume !false; 526#L734 assume test_~splverifierCounter~0#1 < 4; 516#L735 test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 463#L743 assume !(0 != test_~tmp~6#1); 465#L743-2 test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 479#L753 assume !(0 != test_~tmp___0~1#1); 394#L753-2 test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 480#L763 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 481#L718 assume { :end_inline_startSystem } true; 472#L771-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; 429#L639 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 430#L953 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 475#L536 assume !(0 != ~pumpRunning~0); 414#L536-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 483#L568 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 517#L560-1 assume { :end_inline_processEnvironment__wrappee__base } true; 495#L568-1 assume { :end_inline_processEnvironment } true; 496#L543-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 533#L132 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 531#L964 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 528#L964-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 527#L553 assume { :end_inline_timeShift } true; 507#L733-2 [2022-02-21 04:18:50,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:50,221 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:50,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:50,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439367841] [2022-02-21 04:18:50,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:50,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:50,243 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:50,266 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:50,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:50,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1515585691, now seen corresponding path program 1 times [2022-02-21 04:18:50,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:50,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882806396] [2022-02-21 04:18:50,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:50,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:50,286 INFO L290 TraceCheckUtils]: 0: Hoare triple {1075#true} assume !false; {1075#true} is VALID [2022-02-21 04:18:50,287 INFO L290 TraceCheckUtils]: 1: Hoare triple {1075#true} assume test_~splverifierCounter~0#1 < 4; {1075#true} is VALID [2022-02-21 04:18:50,287 INFO L290 TraceCheckUtils]: 2: Hoare triple {1075#true} test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; {1075#true} is VALID [2022-02-21 04:18:50,287 INFO L290 TraceCheckUtils]: 3: Hoare triple {1075#true} assume !(0 != test_~tmp~6#1); {1075#true} is VALID [2022-02-21 04:18:50,287 INFO L290 TraceCheckUtils]: 4: Hoare triple {1075#true} test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; {1075#true} is VALID [2022-02-21 04:18:50,288 INFO L290 TraceCheckUtils]: 5: Hoare triple {1075#true} assume !(0 != test_~tmp___0~1#1); {1075#true} is VALID [2022-02-21 04:18:50,288 INFO L290 TraceCheckUtils]: 6: Hoare triple {1075#true} test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; {1075#true} is VALID [2022-02-21 04:18:50,288 INFO L290 TraceCheckUtils]: 7: Hoare triple {1075#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {1075#true} is VALID [2022-02-21 04:18:50,288 INFO L290 TraceCheckUtils]: 8: Hoare triple {1075#true} assume { :end_inline_startSystem } true; {1075#true} is VALID [2022-02-21 04:18:50,288 INFO L290 TraceCheckUtils]: 9: Hoare triple {1075#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; {1075#true} is VALID [2022-02-21 04:18:50,289 INFO L290 TraceCheckUtils]: 10: Hoare triple {1075#true} __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; {1075#true} is VALID [2022-02-21 04:18:50,289 INFO L290 TraceCheckUtils]: 11: Hoare triple {1075#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {1075#true} is VALID [2022-02-21 04:18:50,289 INFO L290 TraceCheckUtils]: 12: Hoare triple {1075#true} assume !(0 != ~pumpRunning~0); {1077#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:50,290 INFO L290 TraceCheckUtils]: 13: Hoare triple {1077#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {1077#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:50,290 INFO L290 TraceCheckUtils]: 14: Hoare triple {1077#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1076#false} is VALID [2022-02-21 04:18:50,291 INFO L290 TraceCheckUtils]: 15: Hoare triple {1076#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1076#false} is VALID [2022-02-21 04:18:50,291 INFO L290 TraceCheckUtils]: 16: Hoare triple {1076#false} assume { :end_inline_processEnvironment } true; {1076#false} is VALID [2022-02-21 04:18:50,291 INFO L290 TraceCheckUtils]: 17: Hoare triple {1076#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {1076#false} is VALID [2022-02-21 04:18:50,291 INFO L290 TraceCheckUtils]: 18: Hoare triple {1076#false} __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; {1076#false} is VALID [2022-02-21 04:18:50,292 INFO L290 TraceCheckUtils]: 19: Hoare triple {1076#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); {1076#false} is VALID [2022-02-21 04:18:50,292 INFO L290 TraceCheckUtils]: 20: Hoare triple {1076#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {1076#false} is VALID [2022-02-21 04:18:50,292 INFO L290 TraceCheckUtils]: 21: Hoare triple {1076#false} assume { :end_inline_timeShift } true; {1076#false} is VALID [2022-02-21 04:18:50,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:50,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:50,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882806396] [2022-02-21 04:18:50,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882806396] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:50,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:50,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:50,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047785641] [2022-02-21 04:18:50,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:50,294 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:50,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:50,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:50,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:50,295 INFO L87 Difference]: Start difference. First operand 225 states and 297 transitions. cyclomatic complexity: 75 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:50,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:50,528 INFO L93 Difference]: Finished difference Result 355 states and 456 transitions. [2022-02-21 04:18:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:50,528 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:50,549 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:50,550 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 355 states and 456 transitions. [2022-02-21 04:18:50,560 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2022-02-21 04:18:50,571 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 355 states to 355 states and 456 transitions. [2022-02-21 04:18:50,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 355 [2022-02-21 04:18:50,572 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 355 [2022-02-21 04:18:50,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 355 states and 456 transitions. [2022-02-21 04:18:50,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:50,576 INFO L681 BuchiCegarLoop]: Abstraction has 355 states and 456 transitions. [2022-02-21 04:18:50,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states and 456 transitions. [2022-02-21 04:18:50,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2022-02-21 04:18:50,598 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:50,599 INFO L82 GeneralOperation]: Start isEquivalent. First operand 355 states and 456 transitions. Second operand has 355 states, 355 states have (on average 1.2845070422535212) internal successors, (456), 354 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:50,600 INFO L74 IsIncluded]: Start isIncluded. First operand 355 states and 456 transitions. Second operand has 355 states, 355 states have (on average 1.2845070422535212) internal successors, (456), 354 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:50,601 INFO L87 Difference]: Start difference. First operand 355 states and 456 transitions. Second operand has 355 states, 355 states have (on average 1.2845070422535212) internal successors, (456), 354 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:50,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:50,610 INFO L93 Difference]: Finished difference Result 355 states and 456 transitions. [2022-02-21 04:18:50,611 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 456 transitions. [2022-02-21 04:18:50,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:50,611 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:50,612 INFO L74 IsIncluded]: Start isIncluded. First operand has 355 states, 355 states have (on average 1.2845070422535212) internal successors, (456), 354 states have internal predecessors, (456), 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 355 states and 456 transitions. [2022-02-21 04:18:50,614 INFO L87 Difference]: Start difference. First operand has 355 states, 355 states have (on average 1.2845070422535212) internal successors, (456), 354 states have internal predecessors, (456), 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 355 states and 456 transitions. [2022-02-21 04:18:50,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:50,624 INFO L93 Difference]: Finished difference Result 355 states and 456 transitions. [2022-02-21 04:18:50,624 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 456 transitions. [2022-02-21 04:18:50,625 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:50,625 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:50,625 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:50,625 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:50,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 355 states have (on average 1.2845070422535212) internal successors, (456), 354 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:50,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 456 transitions. [2022-02-21 04:18:50,635 INFO L704 BuchiCegarLoop]: Abstraction has 355 states and 456 transitions. [2022-02-21 04:18:50,635 INFO L587 BuchiCegarLoop]: Abstraction has 355 states and 456 transitions. [2022-02-21 04:18:50,636 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:50,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 355 states and 456 transitions. [2022-02-21 04:18:50,638 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2022-02-21 04:18:50,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:50,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:50,640 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:50,640 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:50,640 INFO L791 eck$LassoCheckResult]: Stem: 1590#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 1483#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1484#L817 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1433#L810 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 1434#L825 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 1552#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1445#L889 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1446#L943 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1580#L733-2 [2022-02-21 04:18:50,641 INFO L793 eck$LassoCheckResult]: Loop: 1580#L733-2 assume !false; 1596#L734 assume test_~splverifierCounter~0#1 < 4; 1594#L735 test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 1511#L743 assume !(0 != test_~tmp~6#1); 1513#L743-2 test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 1533#L753 assume !(0 != test_~tmp___0~1#1); 1438#L753-2 test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 1534#L763 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 1536#L771 assume !(0 != test_~tmp___1~0#1); 1573#L771-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; 1472#L639 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 1473#L953 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1597#L536 assume !(0 != ~pumpRunning~0); 1656#L536-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1674#L568 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1505#L140 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1506#L145 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 1514#L688 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1461#L688-2 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 1462#L694 processEnvironment_#t~ret32#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret32#1;havoc processEnvironment_#t~ret32#1; 1669#L572 assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1670#L560 assume { :end_inline_processEnvironment__wrappee__base } true; 1694#L568-1 assume { :end_inline_processEnvironment } true; 1693#L543-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1692#L132 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 1691#L964 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 1485#L964-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1486#L553 assume { :end_inline_timeShift } true; 1580#L733-2 [2022-02-21 04:18:50,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:50,642 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:50,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:50,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328854228] [2022-02-21 04:18:50,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:50,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:50,686 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:50,703 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:50,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:50,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1168576949, now seen corresponding path program 1 times [2022-02-21 04:18:50,704 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:50,704 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624953625] [2022-02-21 04:18:50,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:50,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:50,765 INFO L290 TraceCheckUtils]: 0: Hoare triple {2503#true} assume !false; {2503#true} is VALID [2022-02-21 04:18:50,766 INFO L290 TraceCheckUtils]: 1: Hoare triple {2503#true} assume test_~splverifierCounter~0#1 < 4; {2503#true} is VALID [2022-02-21 04:18:50,766 INFO L290 TraceCheckUtils]: 2: Hoare triple {2503#true} test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; {2503#true} is VALID [2022-02-21 04:18:50,766 INFO L290 TraceCheckUtils]: 3: Hoare triple {2503#true} assume !(0 != test_~tmp~6#1); {2503#true} is VALID [2022-02-21 04:18:50,766 INFO L290 TraceCheckUtils]: 4: Hoare triple {2503#true} test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; {2503#true} is VALID [2022-02-21 04:18:50,767 INFO L290 TraceCheckUtils]: 5: Hoare triple {2503#true} assume !(0 != test_~tmp___0~1#1); {2503#true} is VALID [2022-02-21 04:18:50,767 INFO L290 TraceCheckUtils]: 6: Hoare triple {2503#true} test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; {2503#true} is VALID [2022-02-21 04:18:50,767 INFO L290 TraceCheckUtils]: 7: Hoare triple {2503#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; {2503#true} is VALID [2022-02-21 04:18:50,770 INFO L290 TraceCheckUtils]: 8: Hoare triple {2503#true} assume !(0 != test_~tmp___1~0#1); {2503#true} is VALID [2022-02-21 04:18:50,771 INFO L290 TraceCheckUtils]: 9: Hoare triple {2503#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; {2503#true} is VALID [2022-02-21 04:18:50,771 INFO L290 TraceCheckUtils]: 10: Hoare triple {2503#true} __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; {2503#true} is VALID [2022-02-21 04:18:50,771 INFO L290 TraceCheckUtils]: 11: Hoare triple {2503#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {2503#true} is VALID [2022-02-21 04:18:50,771 INFO L290 TraceCheckUtils]: 12: Hoare triple {2503#true} assume !(0 != ~pumpRunning~0); {2503#true} is VALID [2022-02-21 04:18:50,771 INFO L290 TraceCheckUtils]: 13: Hoare triple {2503#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {2503#true} is VALID [2022-02-21 04:18:50,771 INFO L290 TraceCheckUtils]: 14: Hoare triple {2503#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; {2503#true} is VALID [2022-02-21 04:18:50,772 INFO L290 TraceCheckUtils]: 15: Hoare triple {2503#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; {2505#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:50,773 INFO L290 TraceCheckUtils]: 16: Hoare triple {2505#(<= ~waterLevel~0 1)} isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; {2505#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:50,773 INFO L290 TraceCheckUtils]: 17: Hoare triple {2505#(<= ~waterLevel~0 1)} assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~0#1 := 0; {2505#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:50,774 INFO L290 TraceCheckUtils]: 18: Hoare triple {2505#(<= ~waterLevel~0 1)} isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; {2505#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:50,775 INFO L290 TraceCheckUtils]: 19: Hoare triple {2505#(<= ~waterLevel~0 1)} processEnvironment_#t~ret32#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret32#1;havoc processEnvironment_#t~ret32#1; {2505#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:50,775 INFO L290 TraceCheckUtils]: 20: Hoare triple {2505#(<= ~waterLevel~0 1)} assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2505#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:50,775 INFO L290 TraceCheckUtils]: 21: Hoare triple {2505#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__base } true; {2505#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:50,776 INFO L290 TraceCheckUtils]: 22: Hoare triple {2505#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {2505#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:50,776 INFO L290 TraceCheckUtils]: 23: Hoare triple {2505#(<= ~waterLevel~0 1)} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {2506#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:18:50,777 INFO L290 TraceCheckUtils]: 24: Hoare triple {2506#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; {2507#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~8#1| 1)} is VALID [2022-02-21 04:18:50,778 INFO L290 TraceCheckUtils]: 25: Hoare triple {2507#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~8#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); {2504#false} is VALID [2022-02-21 04:18:50,778 INFO L290 TraceCheckUtils]: 26: Hoare triple {2504#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {2504#false} is VALID [2022-02-21 04:18:50,778 INFO L290 TraceCheckUtils]: 27: Hoare triple {2504#false} assume { :end_inline_timeShift } true; {2504#false} is VALID [2022-02-21 04:18:50,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:50,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:50,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624953625] [2022-02-21 04:18:50,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624953625] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:50,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:50,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:50,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097773598] [2022-02-21 04:18:50,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:50,781 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:50,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:50,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:50,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:50,783 INFO L87 Difference]: Start difference. First operand 355 states and 456 transitions. cyclomatic complexity: 104 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:51,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:51,418 INFO L93 Difference]: Finished difference Result 961 states and 1208 transitions. [2022-02-21 04:18:51,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:51,418 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:51,437 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:51,440 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 961 states and 1208 transitions. [2022-02-21 04:18:51,499 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 651 [2022-02-21 04:18:51,540 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 961 states to 961 states and 1208 transitions. [2022-02-21 04:18:51,540 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 961 [2022-02-21 04:18:51,541 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 961 [2022-02-21 04:18:51,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 961 states and 1208 transitions. [2022-02-21 04:18:51,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:51,542 INFO L681 BuchiCegarLoop]: Abstraction has 961 states and 1208 transitions. [2022-02-21 04:18:51,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states and 1208 transitions. [2022-02-21 04:18:51,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 698. [2022-02-21 04:18:51,557 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:51,559 INFO L82 GeneralOperation]: Start isEquivalent. First operand 961 states and 1208 transitions. Second operand has 698 states, 698 states have (on average 1.2578796561604584) internal successors, (878), 697 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:51,560 INFO L74 IsIncluded]: Start isIncluded. First operand 961 states and 1208 transitions. Second operand has 698 states, 698 states have (on average 1.2578796561604584) internal successors, (878), 697 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:51,562 INFO L87 Difference]: Start difference. First operand 961 states and 1208 transitions. Second operand has 698 states, 698 states have (on average 1.2578796561604584) internal successors, (878), 697 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:51,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:51,598 INFO L93 Difference]: Finished difference Result 961 states and 1208 transitions. [2022-02-21 04:18:51,598 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1208 transitions. [2022-02-21 04:18:51,600 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:51,600 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:51,602 INFO L74 IsIncluded]: Start isIncluded. First operand has 698 states, 698 states have (on average 1.2578796561604584) internal successors, (878), 697 states have internal predecessors, (878), 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 961 states and 1208 transitions. [2022-02-21 04:18:51,603 INFO L87 Difference]: Start difference. First operand has 698 states, 698 states have (on average 1.2578796561604584) internal successors, (878), 697 states have internal predecessors, (878), 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 961 states and 1208 transitions. [2022-02-21 04:18:51,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:51,640 INFO L93 Difference]: Finished difference Result 961 states and 1208 transitions. [2022-02-21 04:18:51,640 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1208 transitions. [2022-02-21 04:18:51,642 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:51,642 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:51,642 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:51,642 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:51,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 698 states have (on average 1.2578796561604584) internal successors, (878), 697 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:51,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 878 transitions. [2022-02-21 04:18:51,681 INFO L704 BuchiCegarLoop]: Abstraction has 698 states and 878 transitions. [2022-02-21 04:18:51,681 INFO L587 BuchiCegarLoop]: Abstraction has 698 states and 878 transitions. [2022-02-21 04:18:51,681 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:18:51,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 698 states and 878 transitions. [2022-02-21 04:18:51,684 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 506 [2022-02-21 04:18:51,685 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:51,685 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:51,686 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:51,686 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:51,687 INFO L791 eck$LassoCheckResult]: Stem: 3628#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 3526#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 3527#L817 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3477#L810 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 3478#L825 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 3591#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 3489#L889 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3490#L943 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3588#L733-2 [2022-02-21 04:18:51,687 INFO L793 eck$LassoCheckResult]: Loop: 3588#L733-2 assume !false; 3605#L734 assume test_~splverifierCounter~0#1 < 4; 3606#L735 test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 3553#L743 assume !(0 != test_~tmp~6#1); 3555#L743-2 test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 3573#L753 assume !(0 != test_~tmp___0~1#1); 3482#L753-2 test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 3574#L763 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3575#L718 assume { :end_inline_startSystem } true; 3603#L771-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; 4111#L639 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 3637#L953 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3569#L536 assume !(0 != ~pumpRunning~0); 3570#L536-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 3577#L568 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 4023#L140 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 3989#L145 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 4021#L688 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~0#1 := 0; 4019#L688-2 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 4018#L694 processEnvironment_#t~ret32#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret32#1;havoc processEnvironment_#t~ret32#1; 4016#L572 assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4014#L560 assume { :end_inline_processEnvironment__wrappee__base } true; 4010#L568-1 assume { :end_inline_processEnvironment } true; 4009#L543-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 4008#L132 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 4007#L964 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; 3537#L639-1 __utac_acc__Specification5_spec__3_#t~ret52#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 3538#L968 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 4005#L964-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3587#L553 assume { :end_inline_timeShift } true; 3588#L733-2 [2022-02-21 04:18:51,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:51,688 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:18:51,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:51,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485269068] [2022-02-21 04:18:51,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:51,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:51,719 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:51,738 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:51,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:51,739 INFO L85 PathProgramCache]: Analyzing trace with hash -656897058, now seen corresponding path program 1 times [2022-02-21 04:18:51,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:51,739 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957961638] [2022-02-21 04:18:51,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:51,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:51,753 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:51,762 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:51,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:51,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1672212743, now seen corresponding path program 1 times [2022-02-21 04:18:51,763 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:51,763 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019111595] [2022-02-21 04:18:51,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:51,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:51,781 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:51,803 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:55,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:55 BoogieIcfgContainer [2022-02-21 04:18:55,037 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:55,037 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:55,038 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:55,038 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:55,038 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:49" (3/4) ... [2022-02-21 04:18:55,040 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:55,087 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:55,087 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:55,088 INFO L158 Benchmark]: Toolchain (without parser) took 6905.67ms. Allocated memory was 104.9MB in the beginning and 188.7MB in the end (delta: 83.9MB). Free memory was 74.0MB in the beginning and 152.6MB in the end (delta: -78.6MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:55,089 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:55,089 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.43ms. Allocated memory is still 104.9MB. Free memory was 73.6MB in the beginning and 66.8MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:55,089 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.91ms. Allocated memory is still 104.9MB. Free memory was 66.8MB in the beginning and 63.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:55,090 INFO L158 Benchmark]: Boogie Preprocessor took 30.35ms. Allocated memory is still 104.9MB. Free memory was 63.1MB in the beginning and 61.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:55,090 INFO L158 Benchmark]: RCFGBuilder took 552.86ms. Allocated memory was 104.9MB in the beginning and 130.0MB in the end (delta: 25.2MB). Free memory was 61.0MB in the beginning and 93.2MB in the end (delta: -32.2MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:55,091 INFO L158 Benchmark]: BuchiAutomizer took 5810.44ms. Allocated memory was 130.0MB in the beginning and 188.7MB in the end (delta: 58.7MB). Free memory was 93.2MB in the beginning and 154.7MB in the end (delta: -61.5MB). Peak memory consumption was 93.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:55,091 INFO L158 Benchmark]: Witness Printer took 49.90ms. Allocated memory is still 188.7MB. Free memory was 154.7MB in the beginning and 152.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:55,093 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.43ms. Allocated memory is still 104.9MB. Free memory was 73.6MB in the beginning and 66.8MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.91ms. Allocated memory is still 104.9MB. Free memory was 66.8MB in the beginning and 63.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.35ms. Allocated memory is still 104.9MB. Free memory was 63.1MB in the beginning and 61.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 552.86ms. Allocated memory was 104.9MB in the beginning and 130.0MB in the end (delta: 25.2MB). Free memory was 61.0MB in the beginning and 93.2MB in the end (delta: -32.2MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 5810.44ms. Allocated memory was 130.0MB in the beginning and 188.7MB in the end (delta: 58.7MB). Free memory was 93.2MB in the beginning and 154.7MB in the end (delta: -61.5MB). Peak memory consumption was 93.2MB. Max. memory is 16.1GB. * Witness Printer took 49.90ms. Allocated memory is still 188.7MB. Free memory was 154.7MB in the beginning and 152.6MB 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 698 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 266 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 698 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 802 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 802 mSDsluCounter, 1274 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 726 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 548 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 733]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6aceb174=0, tmp___0=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@759efc47=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@390bd47a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d05e80f=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=1, tmp=1, retValue_acc=0, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@625e7b38=0, tmp=1, tmp=1, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2eb9c9d1=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c0462b=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14cd13a9=0, tmp=0, tmp___0=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@638f079a=0, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53e75e24=29} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 733]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L320] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L524] int pumpRunning = 0; [L525] int systemActive = 1; [L830] int cleanupTimeShifts = 4; [L937] int switchedOnBeforeTS ; [L905] int retValue_acc ; [L906] int tmp ; [L910] FCALL select_helpers() [L911] FCALL select_features() [L912] CALL, EXPR valid_product() [L821] int retValue_acc ; [L824] retValue_acc = 1 [L825] return (retValue_acc); [L912] RET, EXPR valid_product() [L912] tmp = valid_product() [L914] COND TRUE \read(tmp) [L916] FCALL setup() [L917] CALL runTest() [L898] CALL __utac_acc__Specification5_spec__1() [L942] switchedOnBeforeTS = 0 [L898] RET __utac_acc__Specification5_spec__1() [L899] CALL test() [L724] int splverifierCounter ; [L725] int tmp ; [L726] int tmp___0 ; [L727] int tmp___1 ; [L728] int tmp___2 ; [L731] splverifierCounter = 0 Loop: [L733] COND TRUE 1 [L735] COND TRUE splverifierCounter < 4 [L741] tmp = __VERIFIER_nondet_int() [L743] COND FALSE !(\read(tmp)) [L751] tmp___0 = __VERIFIER_nondet_int() [L753] COND FALSE !(\read(tmp___0)) [L761] tmp___2 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___2) [L765] CALL startSystem() [L717] systemActive = 1 [L765] RET startSystem() [L780] CALL timeShift() [L534] CALL __utac_acc__Specification5_spec__2() [L951] CALL, EXPR isPumpRunning() [L635] int retValue_acc ; [L638] retValue_acc = pumpRunning [L639] return (retValue_acc); [L951] RET, EXPR isPumpRunning() [L951] switchedOnBeforeTS = isPumpRunning() [L534] RET __utac_acc__Specification5_spec__2() [L536] COND FALSE !(\read(pumpRunning)) [L543] COND TRUE \read(systemActive) [L545] CALL processEnvironment() [L565] int tmp ; [L568] COND TRUE ! pumpRunning [L570] CALL, EXPR isHighWaterLevel() [L680] int retValue_acc ; [L681] int tmp ; [L682] int tmp___0 ; [L686] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L686] RET, EXPR isHighWaterSensorDry() [L686] tmp = isHighWaterSensorDry() [L688] COND TRUE \read(tmp) [L689] tmp___0 = 0 [L693] retValue_acc = tmp___0 [L694] return (retValue_acc); [L570] RET, EXPR isHighWaterLevel() [L570] tmp = isHighWaterLevel() [L572] COND FALSE !(\read(tmp)) [L578] FCALL processEnvironment__wrappee__base() [L545] RET processEnvironment() [L551] CALL __utac_acc__Specification5_spec__3() [L957] int tmp ; [L958] int tmp___0 ; [L962] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L962] RET, EXPR getWaterLevel() [L962] tmp = getWaterLevel() [L964] COND TRUE tmp != 2 [L966] CALL, EXPR isPumpRunning() [L635] int retValue_acc ; [L638] retValue_acc = pumpRunning [L639] return (retValue_acc); [L966] RET, EXPR isPumpRunning() [L966] tmp___0 = isPumpRunning() [L968] COND FALSE !(\read(tmp___0)) [L551] RET __utac_acc__Specification5_spec__3() [L780] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:55,145 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)