./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product40.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_product40.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 31801b0d0a8db366707af3e7371b9dc02f7c34625c63f4c3f856015d4449b4b2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:41,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:41,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:42,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:42,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:42,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:42,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:42,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:42,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:42,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:42,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:42,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:42,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:42,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:42,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:42,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:42,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:42,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:42,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:42,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:42,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:42,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:42,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:42,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:42,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:42,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:42,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:42,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:42,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:42,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:42,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:42,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:42,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:42,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:42,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:42,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:42,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:42,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:42,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:42,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:42,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:42,049 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:42,085 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:42,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:42,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:42,086 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:42,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:42,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:42,088 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:42,088 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:42,088 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:42,088 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:42,089 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:42,090 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:42,090 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:42,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:42,090 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:42,090 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:42,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:42,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:42,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:42,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:42,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:42,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:42,092 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:42,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:42,092 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:42,092 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:42,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:42,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:42,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:42,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:42,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:42,094 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:42,094 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31801b0d0a8db366707af3e7371b9dc02f7c34625c63f4c3f856015d4449b4b2 [2022-02-21 04:18:42,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:42,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:42,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:42,325 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:42,329 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:42,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c [2022-02-21 04:18:42,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a09efdeb1/2fdc2c8adc5546898e11437001438d69/FLAG2d8436e1b [2022-02-21 04:18:42,724 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:42,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c [2022-02-21 04:18:42,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a09efdeb1/2fdc2c8adc5546898e11437001438d69/FLAG2d8436e1b [2022-02-21 04:18:43,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a09efdeb1/2fdc2c8adc5546898e11437001438d69 [2022-02-21 04:18:43,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:43,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:43,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:43,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:43,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:43,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:43" (1/1) ... [2022-02-21 04:18:43,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c591a07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:43, skipping insertion in model container [2022-02-21 04:18:43,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:43" (1/1) ... [2022-02-21 04:18:43,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:43,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:43,434 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_product40.cil.c[17098,17111] [2022-02-21 04:18:43,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:43,458 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:43,501 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_product40.cil.c[17098,17111] [2022-02-21 04:18:43,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:43,531 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:43,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:43 WrapperNode [2022-02-21 04:18:43,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:43,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:43,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:43,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:43,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:43" (1/1) ... [2022-02-21 04:18:43,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:43" (1/1) ... [2022-02-21 04:18:43,608 INFO L137 Inliner]: procedures = 57, calls = 159, calls flagged for inlining = 56, calls inlined = 87, statements flattened = 631 [2022-02-21 04:18:43,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:43,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:43,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:43,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:43,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:43" (1/1) ... [2022-02-21 04:18:43,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:43" (1/1) ... [2022-02-21 04:18:43,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:43" (1/1) ... [2022-02-21 04:18:43,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:43" (1/1) ... [2022-02-21 04:18:43,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:43" (1/1) ... [2022-02-21 04:18:43,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:43" (1/1) ... [2022-02-21 04:18:43,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:43" (1/1) ... [2022-02-21 04:18:43,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:43,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:43,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:43,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:43,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:43" (1/1) ... [2022-02-21 04:18:43,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:43,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:43,696 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 04:18:43,699 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 04:18:43,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:43,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:43,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:43,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:43,773 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:43,774 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:44,232 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:44,240 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:44,240 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:44,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:44 BoogieIcfgContainer [2022-02-21 04:18:44,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:44,242 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:44,242 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:44,246 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:44,246 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:44,246 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:43" (1/3) ... [2022-02-21 04:18:44,248 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ea81a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:44, skipping insertion in model container [2022-02-21 04:18:44,248 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:44,248 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:43" (2/3) ... [2022-02-21 04:18:44,248 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ea81a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:44, skipping insertion in model container [2022-02-21 04:18:44,248 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:44,248 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:44" (3/3) ... [2022-02-21 04:18:44,249 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product40.cil.c [2022-02-21 04:18:44,294 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:44,294 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:44,294 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:44,294 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:44,294 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:44,294 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:44,294 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:44,295 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:44,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 171 states, 170 states have (on average 1.3647058823529412) internal successors, (232), 170 states have internal predecessors, (232), 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 04:18:44,362 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2022-02-21 04:18:44,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:44,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:44,368 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:44,368 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 04:18:44,368 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:44,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 171 states, 170 states have (on average 1.3647058823529412) internal successors, (232), 170 states have internal predecessors, (232), 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 04:18:44,392 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2022-02-21 04:18:44,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:44,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:44,393 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:44,394 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 04:18:44,397 INFO L791 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 55#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 161#L887true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 48#L880true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 93#L895true main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 68#L842true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 90#L815true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 121#L713true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#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#L280-2true [2022-02-21 04:18:44,399 INFO L793 eck$LassoCheckResult]: Loop: 132#L280-2true assume !false; 19#L281true assume test_~splverifierCounter~0#1 < 4; 7#L282true test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 166#L290true assume !(0 != test_~tmp~3#1); 128#L290-2true test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 83#L300true assume !(0 != test_~tmp___0~1#1); 129#L300-2true test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 87#L310true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 162#L318true assume !(0 != test_~tmp___1~0#1); 153#L318-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 98#L184true __utac_acc__Specification5_spec__2_#t~ret43#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43#1;havoc __utac_acc__Specification5_spec__2_#t~ret43#1; 170#L723true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 120#L73true assume !(0 != ~pumpRunning~0); 45#L73-2true assume !(0 != ~systemActive~0); 145#L80-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 142#L975true __utac_acc__Specification5_spec__3_#t~ret44#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret44#1;havoc __utac_acc__Specification5_spec__3_#t~ret44#1; 113#L734true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 47#L734-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 159#L90true assume { :end_inline_timeShift } true; 132#L280-2true [2022-02-21 04:18:44,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:44,407 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:44,414 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:44,414 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300443846] [2022-02-21 04:18:44,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:44,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:44,516 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:44,578 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:44,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:44,583 INFO L85 PathProgramCache]: Analyzing trace with hash -2132700359, now seen corresponding path program 1 times [2022-02-21 04:18:44,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:44,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845803273] [2022-02-21 04:18:44,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:44,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:44,607 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:44,622 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:44,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:44,628 INFO L85 PathProgramCache]: Analyzing trace with hash -702952016, now seen corresponding path program 1 times [2022-02-21 04:18:44,628 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:44,628 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465101533] [2022-02-21 04:18:44,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:44,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:44,763 INFO L290 TraceCheckUtils]: 0: Hoare triple {179#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {181#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:44,764 INFO L290 TraceCheckUtils]: 1: Hoare triple {181#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; {181#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:44,764 INFO L290 TraceCheckUtils]: 2: Hoare triple {181#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {181#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:44,765 INFO L290 TraceCheckUtils]: 3: Hoare triple {181#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; {182#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:44,765 INFO L290 TraceCheckUtils]: 4: Hoare triple {182#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; {183#(= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0)} is VALID [2022-02-21 04:18:44,766 INFO L290 TraceCheckUtils]: 5: Hoare triple {183#(= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0)} assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,766 INFO L290 TraceCheckUtils]: 6: Hoare triple {184#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,767 INFO L290 TraceCheckUtils]: 7: Hoare triple {184#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,767 INFO L290 TraceCheckUtils]: 8: Hoare triple {184#(not (= 0 ~systemActive~0))} assume !false; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,767 INFO L290 TraceCheckUtils]: 9: Hoare triple {184#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,768 INFO L290 TraceCheckUtils]: 10: Hoare triple {184#(not (= 0 ~systemActive~0))} test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,769 INFO L290 TraceCheckUtils]: 11: Hoare triple {184#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~3#1); {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,769 INFO L290 TraceCheckUtils]: 12: Hoare triple {184#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,769 INFO L290 TraceCheckUtils]: 13: Hoare triple {184#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,770 INFO L290 TraceCheckUtils]: 14: Hoare triple {184#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,770 INFO L290 TraceCheckUtils]: 15: Hoare triple {184#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,770 INFO L290 TraceCheckUtils]: 16: Hoare triple {184#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___1~0#1); {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,771 INFO L290 TraceCheckUtils]: 17: Hoare triple {184#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,771 INFO L290 TraceCheckUtils]: 18: Hoare triple {184#(not (= 0 ~systemActive~0))} __utac_acc__Specification5_spec__2_#t~ret43#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43#1;havoc __utac_acc__Specification5_spec__2_#t~ret43#1; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,772 INFO L290 TraceCheckUtils]: 19: Hoare triple {184#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,773 INFO L290 TraceCheckUtils]: 20: Hoare triple {184#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,773 INFO L290 TraceCheckUtils]: 21: Hoare triple {184#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {180#false} is VALID [2022-02-21 04:18:44,773 INFO L290 TraceCheckUtils]: 22: Hoare triple {180#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {180#false} is VALID [2022-02-21 04:18:44,774 INFO L290 TraceCheckUtils]: 23: Hoare triple {180#false} __utac_acc__Specification5_spec__3_#t~ret44#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret44#1;havoc __utac_acc__Specification5_spec__3_#t~ret44#1; {180#false} is VALID [2022-02-21 04:18:44,774 INFO L290 TraceCheckUtils]: 24: Hoare triple {180#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); {180#false} is VALID [2022-02-21 04:18:44,774 INFO L290 TraceCheckUtils]: 25: Hoare triple {180#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {180#false} is VALID [2022-02-21 04:18:44,774 INFO L290 TraceCheckUtils]: 26: Hoare triple {180#false} assume { :end_inline_timeShift } true; {180#false} is VALID [2022-02-21 04:18:44,775 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 04:18:44,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:44,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465101533] [2022-02-21 04:18:44,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465101533] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:44,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:44,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:44,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837737206] [2022-02-21 04:18:44,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:44,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:44,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:44,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:44,941 INFO L87 Difference]: Start difference. First operand has 171 states, 170 states have (on average 1.3647058823529412) internal successors, (232), 170 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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 04:18:45,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:45,951 INFO L93 Difference]: Finished difference Result 559 states and 732 transitions. [2022-02-21 04:18:45,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:45,952 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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 04:18:45,974 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:45,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 559 states and 732 transitions. [2022-02-21 04:18:45,999 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 364 [2022-02-21 04:18:46,018 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 559 states to 519 states and 692 transitions. [2022-02-21 04:18:46,019 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 519 [2022-02-21 04:18:46,020 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 519 [2022-02-21 04:18:46,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 519 states and 692 transitions. [2022-02-21 04:18:46,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:46,022 INFO L681 BuchiCegarLoop]: Abstraction has 519 states and 692 transitions. [2022-02-21 04:18:46,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states and 692 transitions. [2022-02-21 04:18:46,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 219. [2022-02-21 04:18:46,047 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:46,061 INFO L82 GeneralOperation]: Start isEquivalent. First operand 519 states and 692 transitions. Second operand has 219 states, 219 states have (on average 1.3287671232876712) internal successors, (291), 218 states have internal predecessors, (291), 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 04:18:46,063 INFO L74 IsIncluded]: Start isIncluded. First operand 519 states and 692 transitions. Second operand has 219 states, 219 states have (on average 1.3287671232876712) internal successors, (291), 218 states have internal predecessors, (291), 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 04:18:46,065 INFO L87 Difference]: Start difference. First operand 519 states and 692 transitions. Second operand has 219 states, 219 states have (on average 1.3287671232876712) internal successors, (291), 218 states have internal predecessors, (291), 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 04:18:46,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:46,083 INFO L93 Difference]: Finished difference Result 519 states and 692 transitions. [2022-02-21 04:18:46,083 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 692 transitions. [2022-02-21 04:18:46,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:46,090 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:46,091 INFO L74 IsIncluded]: Start isIncluded. First operand has 219 states, 219 states have (on average 1.3287671232876712) internal successors, (291), 218 states have internal predecessors, (291), 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 519 states and 692 transitions. [2022-02-21 04:18:46,091 INFO L87 Difference]: Start difference. First operand has 219 states, 219 states have (on average 1.3287671232876712) internal successors, (291), 218 states have internal predecessors, (291), 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 519 states and 692 transitions. [2022-02-21 04:18:46,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:46,104 INFO L93 Difference]: Finished difference Result 519 states and 692 transitions. [2022-02-21 04:18:46,104 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 692 transitions. [2022-02-21 04:18:46,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:46,105 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:46,105 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:46,105 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:46,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 219 states have (on average 1.3287671232876712) internal successors, (291), 218 states have internal predecessors, (291), 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 04:18:46,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 291 transitions. [2022-02-21 04:18:46,111 INFO L704 BuchiCegarLoop]: Abstraction has 219 states and 291 transitions. [2022-02-21 04:18:46,111 INFO L587 BuchiCegarLoop]: Abstraction has 219 states and 291 transitions. [2022-02-21 04:18:46,111 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:46,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 219 states and 291 transitions. [2022-02-21 04:18:46,113 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 153 [2022-02-21 04:18:46,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:46,113 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:46,114 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:46,114 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] [2022-02-21 04:18:46,115 INFO L791 eck$LassoCheckResult]: Stem: 903#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 828#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 829#L887 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 818#L880 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 819#L895 main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 845#L842 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 846#L815 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 871#L713 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 893#L280-2 [2022-02-21 04:18:46,115 INFO L793 eck$LassoCheckResult]: Loop: 893#L280-2 assume !false; 777#L281 assume test_~splverifierCounter~0#1 < 4; 755#L282 test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 756#L290 assume !(0 != test_~tmp~3#1); 810#L290-2 test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 860#L300 assume !(0 != test_~tmp___0~1#1); 861#L300-2 test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 864#L310 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 865#L263 assume { :end_inline_startSystem } true; 904#L318-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 874#L184 __utac_acc__Specification5_spec__2_#t~ret43#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43#1;havoc __utac_acc__Specification5_spec__2_#t~ret43#1; 875#L723 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 891#L73 assume !(0 != ~pumpRunning~0); 815#L73-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 816#L131 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 830#L105-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 831#L97-3 assume { :end_inline_processEnvironment__wrappee__base } true; 788#L105-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 780#L131-1 assume { :end_inline_processEnvironment } true; 884#L80-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 901#L975 __utac_acc__Specification5_spec__3_#t~ret44#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret44#1;havoc __utac_acc__Specification5_spec__3_#t~ret44#1; 888#L734 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 754#L734-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 817#L90 assume { :end_inline_timeShift } true; 893#L280-2 [2022-02-21 04:18:46,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:46,116 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:46,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:46,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765600314] [2022-02-21 04:18:46,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:46,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:46,136 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:46,161 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:46,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:46,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1866229765, now seen corresponding path program 1 times [2022-02-21 04:18:46,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:46,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616366963] [2022-02-21 04:18:46,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:46,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:46,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:46,176 INFO L290 TraceCheckUtils]: 0: Hoare triple {2010#true} assume !false; {2010#true} is VALID [2022-02-21 04:18:46,176 INFO L290 TraceCheckUtils]: 1: Hoare triple {2010#true} assume test_~splverifierCounter~0#1 < 4; {2010#true} is VALID [2022-02-21 04:18:46,176 INFO L290 TraceCheckUtils]: 2: Hoare triple {2010#true} test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; {2010#true} is VALID [2022-02-21 04:18:46,177 INFO L290 TraceCheckUtils]: 3: Hoare triple {2010#true} assume !(0 != test_~tmp~3#1); {2010#true} is VALID [2022-02-21 04:18:46,177 INFO L290 TraceCheckUtils]: 4: Hoare triple {2010#true} test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {2010#true} is VALID [2022-02-21 04:18:46,177 INFO L290 TraceCheckUtils]: 5: Hoare triple {2010#true} assume !(0 != test_~tmp___0~1#1); {2010#true} is VALID [2022-02-21 04:18:46,177 INFO L290 TraceCheckUtils]: 6: Hoare triple {2010#true} test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {2010#true} is VALID [2022-02-21 04:18:46,177 INFO L290 TraceCheckUtils]: 7: Hoare triple {2010#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {2010#true} is VALID [2022-02-21 04:18:46,178 INFO L290 TraceCheckUtils]: 8: Hoare triple {2010#true} assume { :end_inline_startSystem } true; {2010#true} is VALID [2022-02-21 04:18:46,178 INFO L290 TraceCheckUtils]: 9: Hoare triple {2010#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {2010#true} is VALID [2022-02-21 04:18:46,178 INFO L290 TraceCheckUtils]: 10: Hoare triple {2010#true} __utac_acc__Specification5_spec__2_#t~ret43#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43#1;havoc __utac_acc__Specification5_spec__2_#t~ret43#1; {2010#true} is VALID [2022-02-21 04:18:46,178 INFO L290 TraceCheckUtils]: 11: Hoare triple {2010#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {2010#true} is VALID [2022-02-21 04:18:46,179 INFO L290 TraceCheckUtils]: 12: Hoare triple {2010#true} assume !(0 != ~pumpRunning~0); {2012#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:46,179 INFO L290 TraceCheckUtils]: 13: Hoare triple {2012#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {2012#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:46,179 INFO L290 TraceCheckUtils]: 14: Hoare triple {2012#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {2012#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:46,191 INFO L290 TraceCheckUtils]: 15: Hoare triple {2012#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {2011#false} is VALID [2022-02-21 04:18:46,191 INFO L290 TraceCheckUtils]: 16: Hoare triple {2011#false} assume { :end_inline_processEnvironment__wrappee__base } true; {2011#false} is VALID [2022-02-21 04:18:46,191 INFO L290 TraceCheckUtils]: 17: Hoare triple {2011#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {2011#false} is VALID [2022-02-21 04:18:46,191 INFO L290 TraceCheckUtils]: 18: Hoare triple {2011#false} assume { :end_inline_processEnvironment } true; {2011#false} is VALID [2022-02-21 04:18:46,192 INFO L290 TraceCheckUtils]: 19: Hoare triple {2011#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {2011#false} is VALID [2022-02-21 04:18:46,192 INFO L290 TraceCheckUtils]: 20: Hoare triple {2011#false} __utac_acc__Specification5_spec__3_#t~ret44#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret44#1;havoc __utac_acc__Specification5_spec__3_#t~ret44#1; {2011#false} is VALID [2022-02-21 04:18:46,192 INFO L290 TraceCheckUtils]: 21: Hoare triple {2011#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); {2011#false} is VALID [2022-02-21 04:18:46,192 INFO L290 TraceCheckUtils]: 22: Hoare triple {2011#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {2011#false} is VALID [2022-02-21 04:18:46,192 INFO L290 TraceCheckUtils]: 23: Hoare triple {2011#false} assume { :end_inline_timeShift } true; {2011#false} is VALID [2022-02-21 04:18:46,192 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 04:18:46,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:46,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616366963] [2022-02-21 04:18:46,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616366963] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:46,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:46,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:46,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198498331] [2022-02-21 04:18:46,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:46,195 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:46,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:46,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:46,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:46,196 INFO L87 Difference]: Start difference. First operand 219 states and 291 transitions. cyclomatic complexity: 75 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 04:18:46,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:46,391 INFO L93 Difference]: Finished difference Result 279 states and 355 transitions. [2022-02-21 04:18:46,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:46,392 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 04:18:46,405 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:46,406 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 279 states and 355 transitions. [2022-02-21 04:18:46,412 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 199 [2022-02-21 04:18:46,417 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 279 states to 279 states and 355 transitions. [2022-02-21 04:18:46,418 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 279 [2022-02-21 04:18:46,418 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 279 [2022-02-21 04:18:46,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 279 states and 355 transitions. [2022-02-21 04:18:46,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:46,419 INFO L681 BuchiCegarLoop]: Abstraction has 279 states and 355 transitions. [2022-02-21 04:18:46,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states and 355 transitions. [2022-02-21 04:18:46,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2022-02-21 04:18:46,426 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:46,427 INFO L82 GeneralOperation]: Start isEquivalent. First operand 279 states and 355 transitions. Second operand has 279 states, 279 states have (on average 1.2724014336917562) internal successors, (355), 278 states have internal predecessors, (355), 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 04:18:46,427 INFO L74 IsIncluded]: Start isIncluded. First operand 279 states and 355 transitions. Second operand has 279 states, 279 states have (on average 1.2724014336917562) internal successors, (355), 278 states have internal predecessors, (355), 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 04:18:46,428 INFO L87 Difference]: Start difference. First operand 279 states and 355 transitions. Second operand has 279 states, 279 states have (on average 1.2724014336917562) internal successors, (355), 278 states have internal predecessors, (355), 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 04:18:46,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:46,433 INFO L93 Difference]: Finished difference Result 279 states and 355 transitions. [2022-02-21 04:18:46,433 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 355 transitions. [2022-02-21 04:18:46,433 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:46,433 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:46,434 INFO L74 IsIncluded]: Start isIncluded. First operand has 279 states, 279 states have (on average 1.2724014336917562) internal successors, (355), 278 states have internal predecessors, (355), 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 279 states and 355 transitions. [2022-02-21 04:18:46,434 INFO L87 Difference]: Start difference. First operand has 279 states, 279 states have (on average 1.2724014336917562) internal successors, (355), 278 states have internal predecessors, (355), 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 279 states and 355 transitions. [2022-02-21 04:18:46,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:46,439 INFO L93 Difference]: Finished difference Result 279 states and 355 transitions. [2022-02-21 04:18:46,439 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 355 transitions. [2022-02-21 04:18:46,440 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:46,440 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:46,440 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:46,440 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:46,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 279 states have (on average 1.2724014336917562) internal successors, (355), 278 states have internal predecessors, (355), 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 04:18:46,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 355 transitions. [2022-02-21 04:18:46,445 INFO L704 BuchiCegarLoop]: Abstraction has 279 states and 355 transitions. [2022-02-21 04:18:46,446 INFO L587 BuchiCegarLoop]: Abstraction has 279 states and 355 transitions. [2022-02-21 04:18:46,446 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:46,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 355 transitions. [2022-02-21 04:18:46,447 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 199 [2022-02-21 04:18:46,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:46,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:46,448 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:46,448 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 04:18:46,448 INFO L791 eck$LassoCheckResult]: Stem: 2455#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2370#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 2371#L887 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2361#L880 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 2362#L895 main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 2386#L842 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 2387#L815 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2416#L713 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2438#L280-2 [2022-02-21 04:18:46,448 INFO L793 eck$LassoCheckResult]: Loop: 2438#L280-2 assume !false; 2320#L281 assume test_~splverifierCounter~0#1 < 4; 2321#L282 test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 2569#L290 assume !(0 != test_~tmp~3#1); 2567#L290-2 test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 2565#L300 assume !(0 != test_~tmp___0~1#1); 2563#L300-2 test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 2562#L310 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 2561#L318 assume !(0 != test_~tmp___1~0#1); 2461#L318-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 2560#L184 __utac_acc__Specification5_spec__2_#t~ret43#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43#1;havoc __utac_acc__Specification5_spec__2_#t~ret43#1; 2559#L723 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2558#L73 assume !(0 != ~pumpRunning~0); 2358#L73-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 2359#L131 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 2372#L105-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 2373#L983-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 2402#L988-1 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 2363#L233-3 assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1; 2364#L233-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2345#L239-1 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 2292#L109-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2294#L97-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2460#L105-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2324#L131-1 assume { :end_inline_processEnvironment } true; 2428#L80-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 2535#L975 __utac_acc__Specification5_spec__3_#t~ret44#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret44#1;havoc __utac_acc__Specification5_spec__3_#t~ret44#1; 2533#L734 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 2530#L734-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2459#L90 assume { :end_inline_timeShift } true; 2438#L280-2 [2022-02-21 04:18:46,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:46,449 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:46,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:46,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602944335] [2022-02-21 04:18:46,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:46,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:46,457 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:46,468 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:46,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:46,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1776813667, now seen corresponding path program 1 times [2022-02-21 04:18:46,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:46,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234446914] [2022-02-21 04:18:46,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:46,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:46,509 INFO L290 TraceCheckUtils]: 0: Hoare triple {3134#true} assume !false; {3134#true} is VALID [2022-02-21 04:18:46,510 INFO L290 TraceCheckUtils]: 1: Hoare triple {3134#true} assume test_~splverifierCounter~0#1 < 4; {3134#true} is VALID [2022-02-21 04:18:46,510 INFO L290 TraceCheckUtils]: 2: Hoare triple {3134#true} test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; {3134#true} is VALID [2022-02-21 04:18:46,510 INFO L290 TraceCheckUtils]: 3: Hoare triple {3134#true} assume !(0 != test_~tmp~3#1); {3134#true} is VALID [2022-02-21 04:18:46,510 INFO L290 TraceCheckUtils]: 4: Hoare triple {3134#true} test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {3134#true} is VALID [2022-02-21 04:18:46,510 INFO L290 TraceCheckUtils]: 5: Hoare triple {3134#true} assume !(0 != test_~tmp___0~1#1); {3134#true} is VALID [2022-02-21 04:18:46,510 INFO L290 TraceCheckUtils]: 6: Hoare triple {3134#true} test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {3134#true} is VALID [2022-02-21 04:18:46,510 INFO L290 TraceCheckUtils]: 7: Hoare triple {3134#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {3134#true} is VALID [2022-02-21 04:18:46,510 INFO L290 TraceCheckUtils]: 8: Hoare triple {3134#true} assume !(0 != test_~tmp___1~0#1); {3134#true} is VALID [2022-02-21 04:18:46,510 INFO L290 TraceCheckUtils]: 9: Hoare triple {3134#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {3134#true} is VALID [2022-02-21 04:18:46,510 INFO L290 TraceCheckUtils]: 10: Hoare triple {3134#true} __utac_acc__Specification5_spec__2_#t~ret43#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43#1;havoc __utac_acc__Specification5_spec__2_#t~ret43#1; {3134#true} is VALID [2022-02-21 04:18:46,511 INFO L290 TraceCheckUtils]: 11: Hoare triple {3134#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {3134#true} is VALID [2022-02-21 04:18:46,511 INFO L290 TraceCheckUtils]: 12: Hoare triple {3134#true} assume !(0 != ~pumpRunning~0); {3134#true} is VALID [2022-02-21 04:18:46,511 INFO L290 TraceCheckUtils]: 13: Hoare triple {3134#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {3134#true} is VALID [2022-02-21 04:18:46,511 INFO L290 TraceCheckUtils]: 14: Hoare triple {3134#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {3134#true} is VALID [2022-02-21 04:18:46,511 INFO L290 TraceCheckUtils]: 15: Hoare triple {3134#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; {3134#true} is VALID [2022-02-21 04:18:46,511 INFO L290 TraceCheckUtils]: 16: Hoare triple {3134#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; {3134#true} is VALID [2022-02-21 04:18:46,511 INFO L290 TraceCheckUtils]: 17: Hoare triple {3134#true} isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; {3134#true} is VALID [2022-02-21 04:18:46,512 INFO L290 TraceCheckUtils]: 18: Hoare triple {3134#true} assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1; {3136#(not (= |ULTIMATE.start_isHighWaterLevel_~tmp___0~0#1| 0))} is VALID [2022-02-21 04:18:46,512 INFO L290 TraceCheckUtils]: 19: Hoare triple {3136#(not (= |ULTIMATE.start_isHighWaterLevel_~tmp___0~0#1| 0))} isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; {3137#(not (= |ULTIMATE.start_isHighWaterLevel_#res#1| 0))} is VALID [2022-02-21 04:18:46,512 INFO L290 TraceCheckUtils]: 20: Hoare triple {3137#(not (= |ULTIMATE.start_isHighWaterLevel_#res#1| 0))} processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; {3138#(not (= |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0))} is VALID [2022-02-21 04:18:46,513 INFO L290 TraceCheckUtils]: 21: Hoare triple {3138#(not (= |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0))} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {3135#false} is VALID [2022-02-21 04:18:46,513 INFO L290 TraceCheckUtils]: 22: Hoare triple {3135#false} assume { :end_inline_processEnvironment__wrappee__base } true; {3135#false} is VALID [2022-02-21 04:18:46,513 INFO L290 TraceCheckUtils]: 23: Hoare triple {3135#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {3135#false} is VALID [2022-02-21 04:18:46,513 INFO L290 TraceCheckUtils]: 24: Hoare triple {3135#false} assume { :end_inline_processEnvironment } true; {3135#false} is VALID [2022-02-21 04:18:46,513 INFO L290 TraceCheckUtils]: 25: Hoare triple {3135#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {3135#false} is VALID [2022-02-21 04:18:46,513 INFO L290 TraceCheckUtils]: 26: Hoare triple {3135#false} __utac_acc__Specification5_spec__3_#t~ret44#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret44#1;havoc __utac_acc__Specification5_spec__3_#t~ret44#1; {3135#false} is VALID [2022-02-21 04:18:46,513 INFO L290 TraceCheckUtils]: 27: Hoare triple {3135#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); {3135#false} is VALID [2022-02-21 04:18:46,513 INFO L290 TraceCheckUtils]: 28: Hoare triple {3135#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {3135#false} is VALID [2022-02-21 04:18:46,513 INFO L290 TraceCheckUtils]: 29: Hoare triple {3135#false} assume { :end_inline_timeShift } true; {3135#false} is VALID [2022-02-21 04:18:46,514 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 04:18:46,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:46,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234446914] [2022-02-21 04:18:46,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234446914] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:46,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:46,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:46,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672688865] [2022-02-21 04:18:46,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:46,514 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:46,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:46,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:46,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:46,515 INFO L87 Difference]: Start difference. First operand 279 states and 355 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 04:18:47,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:47,156 INFO L93 Difference]: Finished difference Result 930 states and 1174 transitions. [2022-02-21 04:18:47,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:47,156 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 04:18:47,171 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:47,173 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 930 states and 1174 transitions. [2022-02-21 04:18:47,197 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 688 [2022-02-21 04:18:47,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 930 states to 930 states and 1174 transitions. [2022-02-21 04:18:47,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 930 [2022-02-21 04:18:47,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 930 [2022-02-21 04:18:47,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 930 states and 1174 transitions. [2022-02-21 04:18:47,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:47,221 INFO L681 BuchiCegarLoop]: Abstraction has 930 states and 1174 transitions. [2022-02-21 04:18:47,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states and 1174 transitions. [2022-02-21 04:18:47,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 297. [2022-02-21 04:18:47,234 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:47,235 INFO L82 GeneralOperation]: Start isEquivalent. First operand 930 states and 1174 transitions. Second operand has 297 states, 297 states have (on average 1.2558922558922558) internal successors, (373), 296 states have internal predecessors, (373), 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 04:18:47,235 INFO L74 IsIncluded]: Start isIncluded. First operand 930 states and 1174 transitions. Second operand has 297 states, 297 states have (on average 1.2558922558922558) internal successors, (373), 296 states have internal predecessors, (373), 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 04:18:47,236 INFO L87 Difference]: Start difference. First operand 930 states and 1174 transitions. Second operand has 297 states, 297 states have (on average 1.2558922558922558) internal successors, (373), 296 states have internal predecessors, (373), 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 04:18:47,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:47,257 INFO L93 Difference]: Finished difference Result 930 states and 1174 transitions. [2022-02-21 04:18:47,257 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1174 transitions. [2022-02-21 04:18:47,258 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:47,258 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:47,259 INFO L74 IsIncluded]: Start isIncluded. First operand has 297 states, 297 states have (on average 1.2558922558922558) internal successors, (373), 296 states have internal predecessors, (373), 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 930 states and 1174 transitions. [2022-02-21 04:18:47,259 INFO L87 Difference]: Start difference. First operand has 297 states, 297 states have (on average 1.2558922558922558) internal successors, (373), 296 states have internal predecessors, (373), 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 930 states and 1174 transitions. [2022-02-21 04:18:47,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:47,282 INFO L93 Difference]: Finished difference Result 930 states and 1174 transitions. [2022-02-21 04:18:47,282 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1174 transitions. [2022-02-21 04:18:47,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:47,283 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:47,283 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:47,283 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:47,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 297 states have (on average 1.2558922558922558) internal successors, (373), 296 states have internal predecessors, (373), 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 04:18:47,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 373 transitions. [2022-02-21 04:18:47,287 INFO L704 BuchiCegarLoop]: Abstraction has 297 states and 373 transitions. [2022-02-21 04:18:47,287 INFO L587 BuchiCegarLoop]: Abstraction has 297 states and 373 transitions. [2022-02-21 04:18:47,287 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:18:47,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 297 states and 373 transitions. [2022-02-21 04:18:47,288 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 211 [2022-02-21 04:18:47,288 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:47,289 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:47,289 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:47,289 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 04:18:47,289 INFO L791 eck$LassoCheckResult]: Stem: 4246#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 4153#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 4154#L887 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4143#L880 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 4144#L895 main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 4171#L842 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 4172#L815 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 4203#L713 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4229#L280-2 [2022-02-21 04:18:47,290 INFO L793 eck$LassoCheckResult]: Loop: 4229#L280-2 assume !false; 4102#L281 assume test_~splverifierCounter~0#1 < 4; 4103#L282 test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 4370#L290 assume !(0 != test_~tmp~3#1); 4368#L290-2 test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 4366#L300 assume !(0 != test_~tmp___0~1#1); 4364#L300-2 test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 4363#L310 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 4197#L263 assume { :end_inline_startSystem } true; 4247#L318-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 4210#L184 __utac_acc__Specification5_spec__2_#t~ret43#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43#1;havoc __utac_acc__Specification5_spec__2_#t~ret43#1; 4211#L723 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 4228#L73 assume !(0 != ~pumpRunning~0); 4140#L73-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 4141#L131 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 4155#L105-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 4156#L983-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 4189#L988-1 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 4145#L233-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 4147#L233-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 4258#L239-1 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 4257#L109-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4251#L97-2 assume { :end_inline_processEnvironment__wrappee__base } true; 4252#L105-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4106#L131-1 assume { :end_inline_processEnvironment } true; 4219#L80-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 4242#L975 __utac_acc__Specification5_spec__3_#t~ret44#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret44#1;havoc __utac_acc__Specification5_spec__3_#t~ret44#1; 4222#L734 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 4078#L734-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 4142#L90 assume { :end_inline_timeShift } true; 4229#L280-2 [2022-02-21 04:18:47,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:47,290 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:18:47,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:47,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986947317] [2022-02-21 04:18:47,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:47,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:47,307 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:47,323 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:47,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:47,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1135134861, now seen corresponding path program 1 times [2022-02-21 04:18:47,325 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:47,325 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45108409] [2022-02-21 04:18:47,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:47,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:47,368 INFO L290 TraceCheckUtils]: 0: Hoare triple {6237#true} assume !false; {6237#true} is VALID [2022-02-21 04:18:47,368 INFO L290 TraceCheckUtils]: 1: Hoare triple {6237#true} assume test_~splverifierCounter~0#1 < 4; {6237#true} is VALID [2022-02-21 04:18:47,368 INFO L290 TraceCheckUtils]: 2: Hoare triple {6237#true} test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; {6237#true} is VALID [2022-02-21 04:18:47,368 INFO L290 TraceCheckUtils]: 3: Hoare triple {6237#true} assume !(0 != test_~tmp~3#1); {6237#true} is VALID [2022-02-21 04:18:47,368 INFO L290 TraceCheckUtils]: 4: Hoare triple {6237#true} test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {6237#true} is VALID [2022-02-21 04:18:47,368 INFO L290 TraceCheckUtils]: 5: Hoare triple {6237#true} assume !(0 != test_~tmp___0~1#1); {6237#true} is VALID [2022-02-21 04:18:47,368 INFO L290 TraceCheckUtils]: 6: Hoare triple {6237#true} test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {6237#true} is VALID [2022-02-21 04:18:47,369 INFO L290 TraceCheckUtils]: 7: Hoare triple {6237#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {6237#true} is VALID [2022-02-21 04:18:47,369 INFO L290 TraceCheckUtils]: 8: Hoare triple {6237#true} assume { :end_inline_startSystem } true; {6237#true} is VALID [2022-02-21 04:18:47,369 INFO L290 TraceCheckUtils]: 9: Hoare triple {6237#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {6237#true} is VALID [2022-02-21 04:18:47,369 INFO L290 TraceCheckUtils]: 10: Hoare triple {6237#true} __utac_acc__Specification5_spec__2_#t~ret43#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43#1;havoc __utac_acc__Specification5_spec__2_#t~ret43#1; {6237#true} is VALID [2022-02-21 04:18:47,369 INFO L290 TraceCheckUtils]: 11: Hoare triple {6237#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {6237#true} is VALID [2022-02-21 04:18:47,369 INFO L290 TraceCheckUtils]: 12: Hoare triple {6237#true} assume !(0 != ~pumpRunning~0); {6237#true} is VALID [2022-02-21 04:18:47,369 INFO L290 TraceCheckUtils]: 13: Hoare triple {6237#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {6237#true} is VALID [2022-02-21 04:18:47,369 INFO L290 TraceCheckUtils]: 14: Hoare triple {6237#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {6237#true} is VALID [2022-02-21 04:18:47,369 INFO L290 TraceCheckUtils]: 15: Hoare triple {6237#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; {6237#true} is VALID [2022-02-21 04:18:47,370 INFO L290 TraceCheckUtils]: 16: Hoare triple {6237#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; {6239#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:47,371 INFO L290 TraceCheckUtils]: 17: Hoare triple {6239#(<= ~waterLevel~0 1)} isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; {6239#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:47,371 INFO L290 TraceCheckUtils]: 18: Hoare triple {6239#(<= ~waterLevel~0 1)} assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; {6239#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:47,371 INFO L290 TraceCheckUtils]: 19: Hoare triple {6239#(<= ~waterLevel~0 1)} isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; {6239#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:47,372 INFO L290 TraceCheckUtils]: 20: Hoare triple {6239#(<= ~waterLevel~0 1)} processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; {6239#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:47,372 INFO L290 TraceCheckUtils]: 21: Hoare triple {6239#(<= ~waterLevel~0 1)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {6239#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:47,372 INFO L290 TraceCheckUtils]: 22: Hoare triple {6239#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__base } true; {6239#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:47,373 INFO L290 TraceCheckUtils]: 23: Hoare triple {6239#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {6239#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:47,373 INFO L290 TraceCheckUtils]: 24: Hoare triple {6239#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {6239#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:47,373 INFO L290 TraceCheckUtils]: 25: Hoare triple {6239#(<= ~waterLevel~0 1)} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {6240#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:18:47,374 INFO L290 TraceCheckUtils]: 26: Hoare triple {6240#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __utac_acc__Specification5_spec__3_#t~ret44#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret44#1;havoc __utac_acc__Specification5_spec__3_#t~ret44#1; {6241#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~7#1| 1)} is VALID [2022-02-21 04:18:47,374 INFO L290 TraceCheckUtils]: 27: Hoare triple {6241#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~7#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); {6238#false} is VALID [2022-02-21 04:18:47,374 INFO L290 TraceCheckUtils]: 28: Hoare triple {6238#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {6238#false} is VALID [2022-02-21 04:18:47,374 INFO L290 TraceCheckUtils]: 29: Hoare triple {6238#false} assume { :end_inline_timeShift } true; {6238#false} is VALID [2022-02-21 04:18:47,375 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 04:18:47,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:47,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45108409] [2022-02-21 04:18:47,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45108409] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:47,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:47,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:47,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810618097] [2022-02-21 04:18:47,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:47,375 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:47,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:47,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:47,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:47,376 INFO L87 Difference]: Start difference. First operand 297 states and 373 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 04:18:48,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:48,045 INFO L93 Difference]: Finished difference Result 825 states and 1012 transitions. [2022-02-21 04:18:48,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:48,046 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 04:18:48,062 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:48,063 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 825 states and 1012 transitions. [2022-02-21 04:18:48,082 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 547 [2022-02-21 04:18:48,099 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 825 states to 825 states and 1012 transitions. [2022-02-21 04:18:48,100 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 825 [2022-02-21 04:18:48,100 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 825 [2022-02-21 04:18:48,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 825 states and 1012 transitions. [2022-02-21 04:18:48,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:48,101 INFO L681 BuchiCegarLoop]: Abstraction has 825 states and 1012 transitions. [2022-02-21 04:18:48,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states and 1012 transitions. [2022-02-21 04:18:48,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 583. [2022-02-21 04:18:48,107 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:48,108 INFO L82 GeneralOperation]: Start isEquivalent. First operand 825 states and 1012 transitions. Second operand has 583 states, 583 states have (on average 1.2298456260720412) internal successors, (717), 582 states have internal predecessors, (717), 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 04:18:48,109 INFO L74 IsIncluded]: Start isIncluded. First operand 825 states and 1012 transitions. Second operand has 583 states, 583 states have (on average 1.2298456260720412) internal successors, (717), 582 states have internal predecessors, (717), 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 04:18:48,109 INFO L87 Difference]: Start difference. First operand 825 states and 1012 transitions. Second operand has 583 states, 583 states have (on average 1.2298456260720412) internal successors, (717), 582 states have internal predecessors, (717), 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 04:18:48,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:48,127 INFO L93 Difference]: Finished difference Result 825 states and 1012 transitions. [2022-02-21 04:18:48,128 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1012 transitions. [2022-02-21 04:18:48,128 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:48,129 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:48,130 INFO L74 IsIncluded]: Start isIncluded. First operand has 583 states, 583 states have (on average 1.2298456260720412) internal successors, (717), 582 states have internal predecessors, (717), 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 825 states and 1012 transitions. [2022-02-21 04:18:48,131 INFO L87 Difference]: Start difference. First operand has 583 states, 583 states have (on average 1.2298456260720412) internal successors, (717), 582 states have internal predecessors, (717), 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 825 states and 1012 transitions. [2022-02-21 04:18:48,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:48,149 INFO L93 Difference]: Finished difference Result 825 states and 1012 transitions. [2022-02-21 04:18:48,149 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1012 transitions. [2022-02-21 04:18:48,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:48,150 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:48,150 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:48,150 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:48,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 583 states have (on average 1.2298456260720412) internal successors, (717), 582 states have internal predecessors, (717), 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 04:18:48,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 717 transitions. [2022-02-21 04:18:48,165 INFO L704 BuchiCegarLoop]: Abstraction has 583 states and 717 transitions. [2022-02-21 04:18:48,165 INFO L587 BuchiCegarLoop]: Abstraction has 583 states and 717 transitions. [2022-02-21 04:18:48,165 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:18:48,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 583 states and 717 transitions. [2022-02-21 04:18:48,167 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 419 [2022-02-21 04:18:48,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:48,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:48,168 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:48,168 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, 1, 1] [2022-02-21 04:18:48,168 INFO L791 eck$LassoCheckResult]: Stem: 7266#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 7160#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 7161#L887 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 7149#L880 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 7150#L895 main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 7179#L842 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 7180#L815 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 7214#L713 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 7239#L280-2 [2022-02-21 04:18:48,169 INFO L793 eck$LassoCheckResult]: Loop: 7239#L280-2 assume !false; 7102#L281 assume test_~splverifierCounter~0#1 < 4; 7081#L282 test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 7082#L290 assume !(0 != test_~tmp~3#1); 7280#L290-2 test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 7633#L300 assume !(0 != test_~tmp___0~1#1); 7631#L300-2 test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 7207#L310 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 7208#L263 assume { :end_inline_startSystem } true; 7276#L318-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 7657#L184 __utac_acc__Specification5_spec__2_#t~ret43#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43#1;havoc __utac_acc__Specification5_spec__2_#t~ret43#1; 7656#L723 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 7655#L73 assume !(0 != ~pumpRunning~0); 7469#L73-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 7609#L131 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 7451#L105-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 7240#L983-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 7199#L988-1 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 7200#L233-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 7649#L233-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 7648#L239-1 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 7647#L109-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 7274#L97-2 assume { :end_inline_processEnvironment__wrappee__base } true; 7275#L105-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 7105#L131-1 assume { :end_inline_processEnvironment } true; 7230#L80-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 7263#L975 __utac_acc__Specification5_spec__3_#t~ret44#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret44#1;havoc __utac_acc__Specification5_spec__3_#t~ret44#1; 7233#L734 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 7234#L184-1 __utac_acc__Specification5_spec__3_#t~ret45#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret45#1;havoc __utac_acc__Specification5_spec__3_#t~ret45#1; 7183#L738 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 7078#L734-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 7273#L90 assume { :end_inline_timeShift } true; 7239#L280-2 [2022-02-21 04:18:48,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:48,169 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2022-02-21 04:18:48,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:48,169 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397098715] [2022-02-21 04:18:48,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:48,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:48,179 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:48,200 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:48,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:48,200 INFO L85 PathProgramCache]: Analyzing trace with hash 37995470, now seen corresponding path program 1 times [2022-02-21 04:18:48,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:48,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173392600] [2022-02-21 04:18:48,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:48,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:48,206 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:48,212 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:48,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:48,213 INFO L85 PathProgramCache]: Analyzing trace with hash 634553015, now seen corresponding path program 1 times [2022-02-21 04:18:48,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:48,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402494699] [2022-02-21 04:18:48,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:48,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:48,229 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:48,250 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:50,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:50 BoogieIcfgContainer [2022-02-21 04:18:50,697 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:50,697 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:50,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:50,697 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:50,698 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:44" (3/4) ... [2022-02-21 04:18:50,699 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:50,749 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:50,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:50,750 INFO L158 Benchmark]: Toolchain (without parser) took 7625.33ms. Allocated memory was 100.7MB in the beginning and 192.9MB in the end (delta: 92.3MB). Free memory was 70.0MB in the beginning and 161.4MB in the end (delta: -91.5MB). Peak memory consumption was 107.0MB. Max. memory is 16.1GB. [2022-02-21 04:18:50,752 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 100.7MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:50,753 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.00ms. Allocated memory is still 100.7MB. Free memory was 70.0MB in the beginning and 63.7MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:18:50,754 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.33ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 59.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:50,754 INFO L158 Benchmark]: Boogie Preprocessor took 37.68ms. Allocated memory is still 100.7MB. Free memory was 59.5MB in the beginning and 56.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:50,754 INFO L158 Benchmark]: RCFGBuilder took 592.05ms. Allocated memory was 100.7MB in the beginning and 132.1MB in the end (delta: 31.5MB). Free memory was 56.8MB in the beginning and 89.8MB in the end (delta: -33.0MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:50,755 INFO L158 Benchmark]: BuchiAutomizer took 6454.69ms. Allocated memory was 132.1MB in the beginning and 192.9MB in the end (delta: 60.8MB). Free memory was 89.1MB in the beginning and 56.7MB in the end (delta: 32.4MB). Peak memory consumption was 93.7MB. Max. memory is 16.1GB. [2022-02-21 04:18:50,755 INFO L158 Benchmark]: Witness Printer took 51.86ms. Allocated memory is still 192.9MB. Free memory was 56.7MB in the beginning and 161.4MB in the end (delta: -104.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:50,756 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 0.21ms. Allocated memory is still 100.7MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.00ms. Allocated memory is still 100.7MB. Free memory was 70.0MB in the beginning and 63.7MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.33ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 59.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.68ms. Allocated memory is still 100.7MB. Free memory was 59.5MB in the beginning and 56.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 592.05ms. Allocated memory was 100.7MB in the beginning and 132.1MB in the end (delta: 31.5MB). Free memory was 56.8MB in the beginning and 89.8MB in the end (delta: -33.0MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 6454.69ms. Allocated memory was 132.1MB in the beginning and 192.9MB in the end (delta: 60.8MB). Free memory was 89.1MB in the beginning and 56.7MB in the end (delta: 32.4MB). Peak memory consumption was 93.7MB. Max. memory is 16.1GB. * Witness Printer took 51.86ms. Allocated memory is still 192.9MB. Free memory was 56.7MB in the beginning and 161.4MB in the end (delta: -104.7MB). 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 583 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.3s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.2s. Büchi inclusion checks took 2.3s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 1175 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 583 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2588 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2588 mSDsluCounter, 4002 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2932 mSDsCounter, 99 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 263 IncrementalHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 99 mSolverCounterUnsat, 1070 mSDtfsCounter, 263 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 280]: 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@33aed7b8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11bc200=0, tmp___0=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d28d2bc=0, NULL=1, retValue_acc=0, methaneLevelCritical=0, retValue_acc=1, tmp=1, retValue_acc=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f3bfc21=0, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f90a60f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@133a1d0e=0, retValue_acc=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d39b757=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@426a3685=29, tmp=1, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e931f56=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16856424=0, \result=0, cleanupTimeShifts=4, tmp=0, switchedOnBeforeTS=0, \result=0, tmp=0, tmp___0=0, head=0, \result=1, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b1c90ac=0, waterLevel=1, systemActive=1, \result=0, tmp=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 280]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L508] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L707] int switchedOnBeforeTS ; [L756] int cleanupTimeShifts = 4; [L900] int waterLevel = 1; [L901] int methaneLevelCritical = 0; [L833] int retValue_acc ; [L834] int tmp ; [L838] FCALL select_helpers() [L839] FCALL select_features() [L840] CALL, EXPR valid_product() [L891] int retValue_acc ; [L894] retValue_acc = 1 [L895] return (retValue_acc); [L840] RET, EXPR valid_product() [L840] tmp = valid_product() [L842] COND TRUE \read(tmp) [L844] FCALL setup() [L845] CALL runTest() [L823] CALL __utac_acc__Specification5_spec__1() [L712] switchedOnBeforeTS = 0 [L823] RET __utac_acc__Specification5_spec__1() [L824] CALL test() [L271] int splverifierCounter ; [L272] int tmp ; [L273] int tmp___0 ; [L274] int tmp___1 ; [L275] int tmp___2 ; [L278] splverifierCounter = 0 Loop: [L280] COND TRUE 1 [L282] COND TRUE splverifierCounter < 4 [L288] tmp = __VERIFIER_nondet_int() [L290] COND FALSE !(\read(tmp)) [L298] tmp___0 = __VERIFIER_nondet_int() [L300] COND FALSE !(\read(tmp___0)) [L308] tmp___2 = __VERIFIER_nondet_int() [L310] COND TRUE \read(tmp___2) [L312] CALL startSystem() [L262] systemActive = 1 [L312] RET startSystem() [L327] CALL timeShift() [L71] CALL __utac_acc__Specification5_spec__2() [L721] CALL, EXPR isPumpRunning() [L180] int retValue_acc ; [L183] retValue_acc = pumpRunning [L184] return (retValue_acc); [L721] RET, EXPR isPumpRunning() [L721] switchedOnBeforeTS = isPumpRunning() [L71] RET __utac_acc__Specification5_spec__2() [L73] COND FALSE !(\read(pumpRunning)) [L80] COND TRUE \read(systemActive) [L82] CALL processEnvironment() [L128] int tmp ; [L131] COND FALSE !(\read(pumpRunning)) [L146] CALL processEnvironment__wrappee__highWaterSensor() [L102] int tmp ; [L105] COND TRUE ! pumpRunning [L107] CALL, EXPR isHighWaterLevel() [L225] int retValue_acc ; [L226] int tmp ; [L227] int tmp___0 ; [L231] CALL, EXPR isHighWaterSensorDry() [L980] int retValue_acc ; [L983] COND TRUE waterLevel < 2 [L984] retValue_acc = 1 [L985] return (retValue_acc); [L231] RET, EXPR isHighWaterSensorDry() [L231] tmp = isHighWaterSensorDry() [L233] COND TRUE \read(tmp) [L234] tmp___0 = 0 [L238] retValue_acc = tmp___0 [L239] return (retValue_acc); [L107] RET, EXPR isHighWaterLevel() [L107] tmp = isHighWaterLevel() [L109] COND FALSE !(\read(tmp)) [L115] FCALL processEnvironment__wrappee__base() [L146] RET processEnvironment__wrappee__highWaterSensor() [L82] RET processEnvironment() [L88] CALL __utac_acc__Specification5_spec__3() [L727] int tmp ; [L728] int tmp___0 ; [L732] CALL, EXPR getWaterLevel() [L971] int retValue_acc ; [L974] retValue_acc = waterLevel [L975] return (retValue_acc); [L732] RET, EXPR getWaterLevel() [L732] tmp = getWaterLevel() [L734] COND TRUE tmp != 2 [L736] CALL, EXPR isPumpRunning() [L180] int retValue_acc ; [L183] retValue_acc = pumpRunning [L184] return (retValue_acc); [L736] RET, EXPR isPumpRunning() [L736] tmp___0 = isPumpRunning() [L738] COND FALSE !(\read(tmp___0)) [L88] RET __utac_acc__Specification5_spec__3() [L327] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:50,809 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)