./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product39.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_product39.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 df3faf2d1bbcaed92e1c2eddcb5ae1d2459730e99808e363d537a0bc5d54e347 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:41,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:41,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:41,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:41,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:41,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:41,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:41,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:41,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:42,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:42,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:42,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:42,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:42,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:42,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:42,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:42,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:42,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:42,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:42,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:42,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:42,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:42,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:42,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:42,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:42,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:42,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:42,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:42,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:42,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:42,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:42,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:42,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:42,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:42,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:42,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:42,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:42,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:42,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:42,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:42,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:42,037 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:42,073 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:42,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:42,074 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:42,075 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:42,076 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:42,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:42,076 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:42,077 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:42,077 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:42,077 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:42,078 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:42,079 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:42,079 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:42,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:42,079 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:42,079 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:42,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:42,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:42,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:42,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:42,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:42,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:42,081 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:42,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:42,081 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:42,081 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:42,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:42,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:42,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:42,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:42,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:42,083 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:42,083 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df3faf2d1bbcaed92e1c2eddcb5ae1d2459730e99808e363d537a0bc5d54e347 [2022-02-21 04:18:42,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:42,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:42,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:42,319 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:42,320 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:42,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c [2022-02-21 04:18:42,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5bd4778a/1f547bb734f04ce296be5a2bf04baea9/FLAG44b2a1616 [2022-02-21 04:18:42,777 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:42,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c [2022-02-21 04:18:42,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5bd4778a/1f547bb734f04ce296be5a2bf04baea9/FLAG44b2a1616 [2022-02-21 04:18:43,155 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5bd4778a/1f547bb734f04ce296be5a2bf04baea9 [2022-02-21 04:18:43,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:43,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:43,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:43,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:43,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:43,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:43" (1/1) ... [2022-02-21 04:18:43,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1025091c 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 04:18:43,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:43" (1/1) ... [2022-02-21 04:18:43,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:43,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:43,357 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_product39.cil.c[1605,1618] [2022-02-21 04:18:43,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:43,520 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:43,530 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_product39.cil.c[1605,1618] [2022-02-21 04:18:43,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:43,631 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:43,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:43 WrapperNode [2022-02-21 04:18:43,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:43,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:43,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:43,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:43,638 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 04:18:43,651 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 04:18:43,703 INFO L137 Inliner]: procedures = 56, calls = 158, calls flagged for inlining = 55, calls inlined = 86, statements flattened = 628 [2022-02-21 04:18:43,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:43,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:43,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:43,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:43,711 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 04:18:43,711 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 04:18:43,715 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 04:18:43,715 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 04:18:43,723 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 04:18:43,729 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 04:18:43,730 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 04:18:43,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:43,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:43,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:43,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:43,734 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 04:18:43,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:43,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:43,760 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 04:18:43,778 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 04:18:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:43,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:43,855 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:43,856 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:44,260 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:44,268 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:44,270 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:44,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:44 BoogieIcfgContainer [2022-02-21 04:18:44,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:44,275 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:44,275 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:44,278 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:44,279 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:44,279 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:43" (1/3) ... [2022-02-21 04:18:44,280 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d2ecd85 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 04:18:44,280 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:44,280 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 04:18:44,281 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d2ecd85 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 04:18:44,281 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:44,281 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 04:18:44,282 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product39.cil.c [2022-02-21 04:18:44,332 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:44,332 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:44,332 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:44,333 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:44,333 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:44,333 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:44,333 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:44,333 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:44,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 170 states, 169 states have (on average 1.3668639053254439) internal successors, (231), 169 states have internal predecessors, (231), 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 04:18:44,403 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2022-02-21 04:18:44,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:44,404 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:44,410 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:44,410 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:44,410 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:44,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 170 states, 169 states have (on average 1.3668639053254439) internal successors, (231), 169 states have internal predecessors, (231), 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 04:18:44,433 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2022-02-21 04:18:44,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:44,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:44,434 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:44,434 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:44,438 INFO L791 eck$LassoCheckResult]: Stem: 154#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;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 47#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret17#1, main_~retValue_acc~5#1, main_~tmp~3#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 150#L84true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 92#L77true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 140#L92true main_#t~ret17#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret17#1;havoc main_#t~ret17#1; 55#L392true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 138#L366true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 57#L480true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 136#L416-2true [2022-02-21 04:18:44,439 INFO L793 eck$LassoCheckResult]: Loop: 136#L416-2true assume !false; 46#L417true assume test_~splverifierCounter~0#1 < 4; 18#L418true test_~tmp~4#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 145#L426true assume !(0 != test_~tmp~4#1); 39#L426-2true test_~tmp___0~1#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 45#L436true assume !(0 != test_~tmp___0~1#1); 69#L436-2true test_~tmp___2~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 132#L446true assume 0 != test_~tmp___2~0#1; 63#L452-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret22#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 90#L230true __utac_acc__Specification5_spec__2_#t~ret22#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret22#1;havoc __utac_acc__Specification5_spec__2_#t~ret22#1; 26#L490true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 155#L119true assume !(0 != ~pumpRunning~0); 51#L119-2true assume !(0 != ~systemActive~0); 61#L126-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~5#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~5#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; 88#L964true __utac_acc__Specification5_spec__3_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~5#1 := __utac_acc__Specification5_spec__3_#t~ret23#1;havoc __utac_acc__Specification5_spec__3_#t~ret23#1; 58#L501true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5#1); 126#L501-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 22#L136true assume { :end_inline_timeShift } true; 136#L416-2true [2022-02-21 04:18:44,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:44,444 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:44,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:44,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399574461] [2022-02-21 04:18:44,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:44,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:44,589 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:44,670 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:44,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:44,672 INFO L85 PathProgramCache]: Analyzing trace with hash 648983340, now seen corresponding path program 1 times [2022-02-21 04:18:44,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:44,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218846948] [2022-02-21 04:18:44,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:44,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:44,685 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:44,699 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:44,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:44,701 INFO L85 PathProgramCache]: Analyzing trace with hash -690369067, now seen corresponding path program 1 times [2022-02-21 04:18:44,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:44,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546143841] [2022-02-21 04:18:44,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:44,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:44,867 INFO L290 TraceCheckUtils]: 0: Hoare triple {178#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;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {180#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:44,868 INFO L290 TraceCheckUtils]: 1: Hoare triple {180#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret17#1, main_~retValue_acc~5#1, main_~tmp~3#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; {180#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:44,868 INFO L290 TraceCheckUtils]: 2: Hoare triple {180#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {180#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:44,869 INFO L290 TraceCheckUtils]: 3: Hoare triple {180#(= 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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {181#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:44,869 INFO L290 TraceCheckUtils]: 4: Hoare triple {181#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret17#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret17#1;havoc main_#t~ret17#1; {182#(= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0)} is VALID [2022-02-21 04:18:44,870 INFO L290 TraceCheckUtils]: 5: Hoare triple {182#(= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0)} assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,870 INFO L290 TraceCheckUtils]: 6: Hoare triple {183#(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; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,871 INFO L290 TraceCheckUtils]: 7: Hoare triple {183#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,872 INFO L290 TraceCheckUtils]: 8: Hoare triple {183#(not (= 0 ~systemActive~0))} assume !false; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,872 INFO L290 TraceCheckUtils]: 9: Hoare triple {183#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,873 INFO L290 TraceCheckUtils]: 10: Hoare triple {183#(not (= 0 ~systemActive~0))} test_~tmp~4#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,873 INFO L290 TraceCheckUtils]: 11: Hoare triple {183#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~4#1); {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,874 INFO L290 TraceCheckUtils]: 12: Hoare triple {183#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,874 INFO L290 TraceCheckUtils]: 13: Hoare triple {183#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,875 INFO L290 TraceCheckUtils]: 14: Hoare triple {183#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,876 INFO L290 TraceCheckUtils]: 15: Hoare triple {183#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,876 INFO L290 TraceCheckUtils]: 16: Hoare triple {183#(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~ret22#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,877 INFO L290 TraceCheckUtils]: 17: Hoare triple {183#(not (= 0 ~systemActive~0))} __utac_acc__Specification5_spec__2_#t~ret22#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret22#1;havoc __utac_acc__Specification5_spec__2_#t~ret22#1; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,877 INFO L290 TraceCheckUtils]: 18: Hoare triple {183#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,878 INFO L290 TraceCheckUtils]: 19: Hoare triple {183#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:44,878 INFO L290 TraceCheckUtils]: 20: Hoare triple {183#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {179#false} is VALID [2022-02-21 04:18:44,879 INFO L290 TraceCheckUtils]: 21: Hoare triple {179#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~5#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~5#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; {179#false} is VALID [2022-02-21 04:18:44,879 INFO L290 TraceCheckUtils]: 22: Hoare triple {179#false} __utac_acc__Specification5_spec__3_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~5#1 := __utac_acc__Specification5_spec__3_#t~ret23#1;havoc __utac_acc__Specification5_spec__3_#t~ret23#1; {179#false} is VALID [2022-02-21 04:18:44,879 INFO L290 TraceCheckUtils]: 23: Hoare triple {179#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5#1); {179#false} is VALID [2022-02-21 04:18:44,879 INFO L290 TraceCheckUtils]: 24: Hoare triple {179#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {179#false} is VALID [2022-02-21 04:18:44,880 INFO L290 TraceCheckUtils]: 25: Hoare triple {179#false} assume { :end_inline_timeShift } true; {179#false} is VALID [2022-02-21 04:18:44,881 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 04:18:44,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:44,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546143841] [2022-02-21 04:18:44,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546143841] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:44,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:44,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:44,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901458970] [2022-02-21 04:18:44,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:45,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:45,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:45,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:45,083 INFO L87 Difference]: Start difference. First operand has 170 states, 169 states have (on average 1.3668639053254439) internal successors, (231), 169 states have internal predecessors, (231), 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 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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 04:18:46,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:46,070 INFO L93 Difference]: Finished difference Result 399 states and 522 transitions. [2022-02-21 04:18:46,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:46,072 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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 04:18:46,100 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:46,105 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 399 states and 522 transitions. [2022-02-21 04:18:46,126 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 257 [2022-02-21 04:18:46,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 399 states to 369 states and 492 transitions. [2022-02-21 04:18:46,146 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 369 [2022-02-21 04:18:46,147 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 369 [2022-02-21 04:18:46,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 369 states and 492 transitions. [2022-02-21 04:18:46,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:46,151 INFO L681 BuchiCegarLoop]: Abstraction has 369 states and 492 transitions. [2022-02-21 04:18:46,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states and 492 transitions. [2022-02-21 04:18:46,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 218. [2022-02-21 04:18:46,185 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:46,187 INFO L82 GeneralOperation]: Start isEquivalent. First operand 369 states and 492 transitions. Second operand has 218 states, 218 states have (on average 1.3302752293577982) internal successors, (290), 217 states have internal predecessors, (290), 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 04:18:46,189 INFO L74 IsIncluded]: Start isIncluded. First operand 369 states and 492 transitions. Second operand has 218 states, 218 states have (on average 1.3302752293577982) internal successors, (290), 217 states have internal predecessors, (290), 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 04:18:46,190 INFO L87 Difference]: Start difference. First operand 369 states and 492 transitions. Second operand has 218 states, 218 states have (on average 1.3302752293577982) internal successors, (290), 217 states have internal predecessors, (290), 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 04:18:46,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:46,203 INFO L93 Difference]: Finished difference Result 369 states and 492 transitions. [2022-02-21 04:18:46,204 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 492 transitions. [2022-02-21 04:18:46,206 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:46,206 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:46,207 INFO L74 IsIncluded]: Start isIncluded. First operand has 218 states, 218 states have (on average 1.3302752293577982) internal successors, (290), 217 states have internal predecessors, (290), 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 369 states and 492 transitions. [2022-02-21 04:18:46,208 INFO L87 Difference]: Start difference. First operand has 218 states, 218 states have (on average 1.3302752293577982) internal successors, (290), 217 states have internal predecessors, (290), 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 369 states and 492 transitions. [2022-02-21 04:18:46,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:46,219 INFO L93 Difference]: Finished difference Result 369 states and 492 transitions. [2022-02-21 04:18:46,220 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 492 transitions. [2022-02-21 04:18:46,221 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:46,221 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:46,221 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:46,221 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:46,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 218 states have (on average 1.3302752293577982) internal successors, (290), 217 states have internal predecessors, (290), 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 04:18:46,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 290 transitions. [2022-02-21 04:18:46,229 INFO L704 BuchiCegarLoop]: Abstraction has 218 states and 290 transitions. [2022-02-21 04:18:46,229 INFO L587 BuchiCegarLoop]: Abstraction has 218 states and 290 transitions. [2022-02-21 04:18:46,229 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:46,229 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 218 states and 290 transitions. [2022-02-21 04:18:46,231 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 152 [2022-02-21 04:18:46,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:46,231 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:46,232 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:46,232 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] [2022-02-21 04:18:46,232 INFO L791 eck$LassoCheckResult]: Stem: 741#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;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 659#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret17#1, main_~retValue_acc~5#1, main_~tmp~3#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 660#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 713#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 714#L92 main_#t~ret17#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret17#1;havoc main_#t~ret17#1; 674#L392 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 675#L366 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 676#L480 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 617#L416-2 [2022-02-21 04:18:46,232 INFO L793 eck$LassoCheckResult]: Loop: 617#L416-2 assume !false; 657#L417 assume test_~splverifierCounter~0#1 < 4; 609#L418 test_~tmp~4#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 610#L426 assume !(0 != test_~tmp~4#1); 645#L426-2 test_~tmp___0~1#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 646#L436 assume !(0 != test_~tmp___0~1#1); 656#L436-2 test_~tmp___2~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 694#L446 assume 0 != test_~tmp___2~0#1; 687#L452-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret22#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 688#L230 __utac_acc__Specification5_spec__2_#t~ret22#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret22#1;havoc __utac_acc__Specification5_spec__2_#t~ret22#1; 626#L490 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 627#L119 assume !(0 != ~pumpRunning~0); 668#L119-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 669#L177 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 631#L151-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 633#L143-3 assume { :end_inline_processEnvironment__wrappee__base } true; 599#L151-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 649#L177-1 assume { :end_inline_processEnvironment } true; 684#L126-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~5#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~5#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; 685#L964 __utac_acc__Specification5_spec__3_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~5#1 := __utac_acc__Specification5_spec__3_#t~ret23#1;havoc __utac_acc__Specification5_spec__3_#t~ret23#1; 677#L501 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5#1); 653#L501-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 616#L136 assume { :end_inline_timeShift } true; 617#L416-2 [2022-02-21 04:18:46,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:46,233 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:46,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:46,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917569158] [2022-02-21 04:18:46,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:46,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:46,249 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:46,264 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:46,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:46,265 INFO L85 PathProgramCache]: Analyzing trace with hash 650603032, now seen corresponding path program 1 times [2022-02-21 04:18:46,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:46,265 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123777421] [2022-02-21 04:18:46,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:46,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:46,297 INFO L290 TraceCheckUtils]: 0: Hoare triple {1548#true} assume !false; {1548#true} is VALID [2022-02-21 04:18:46,297 INFO L290 TraceCheckUtils]: 1: Hoare triple {1548#true} assume test_~splverifierCounter~0#1 < 4; {1548#true} is VALID [2022-02-21 04:18:46,297 INFO L290 TraceCheckUtils]: 2: Hoare triple {1548#true} test_~tmp~4#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {1548#true} is VALID [2022-02-21 04:18:46,297 INFO L290 TraceCheckUtils]: 3: Hoare triple {1548#true} assume !(0 != test_~tmp~4#1); {1548#true} is VALID [2022-02-21 04:18:46,298 INFO L290 TraceCheckUtils]: 4: Hoare triple {1548#true} test_~tmp___0~1#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {1548#true} is VALID [2022-02-21 04:18:46,298 INFO L290 TraceCheckUtils]: 5: Hoare triple {1548#true} assume !(0 != test_~tmp___0~1#1); {1548#true} is VALID [2022-02-21 04:18:46,298 INFO L290 TraceCheckUtils]: 6: Hoare triple {1548#true} test_~tmp___2~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; {1548#true} is VALID [2022-02-21 04:18:46,298 INFO L290 TraceCheckUtils]: 7: Hoare triple {1548#true} assume 0 != test_~tmp___2~0#1; {1548#true} is VALID [2022-02-21 04:18:46,298 INFO L290 TraceCheckUtils]: 8: Hoare triple {1548#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret22#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; {1548#true} is VALID [2022-02-21 04:18:46,298 INFO L290 TraceCheckUtils]: 9: Hoare triple {1548#true} __utac_acc__Specification5_spec__2_#t~ret22#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret22#1;havoc __utac_acc__Specification5_spec__2_#t~ret22#1; {1548#true} is VALID [2022-02-21 04:18:46,299 INFO L290 TraceCheckUtils]: 10: Hoare triple {1548#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {1548#true} is VALID [2022-02-21 04:18:46,299 INFO L290 TraceCheckUtils]: 11: Hoare triple {1548#true} assume !(0 != ~pumpRunning~0); {1550#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:46,299 INFO L290 TraceCheckUtils]: 12: Hoare triple {1550#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {1550#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:46,300 INFO L290 TraceCheckUtils]: 13: Hoare triple {1550#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {1550#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:46,301 INFO L290 TraceCheckUtils]: 14: Hoare triple {1550#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1549#false} is VALID [2022-02-21 04:18:46,301 INFO L290 TraceCheckUtils]: 15: Hoare triple {1549#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1549#false} is VALID [2022-02-21 04:18:46,301 INFO L290 TraceCheckUtils]: 16: Hoare triple {1549#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1549#false} is VALID [2022-02-21 04:18:46,301 INFO L290 TraceCheckUtils]: 17: Hoare triple {1549#false} assume { :end_inline_processEnvironment } true; {1549#false} is VALID [2022-02-21 04:18:46,301 INFO L290 TraceCheckUtils]: 18: Hoare triple {1549#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~5#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~5#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; {1549#false} is VALID [2022-02-21 04:18:46,302 INFO L290 TraceCheckUtils]: 19: Hoare triple {1549#false} __utac_acc__Specification5_spec__3_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~5#1 := __utac_acc__Specification5_spec__3_#t~ret23#1;havoc __utac_acc__Specification5_spec__3_#t~ret23#1; {1549#false} is VALID [2022-02-21 04:18:46,302 INFO L290 TraceCheckUtils]: 20: Hoare triple {1549#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5#1); {1549#false} is VALID [2022-02-21 04:18:46,302 INFO L290 TraceCheckUtils]: 21: Hoare triple {1549#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {1549#false} is VALID [2022-02-21 04:18:46,302 INFO L290 TraceCheckUtils]: 22: Hoare triple {1549#false} assume { :end_inline_timeShift } true; {1549#false} is VALID [2022-02-21 04:18:46,302 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 04:18:46,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:46,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123777421] [2022-02-21 04:18:46,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123777421] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:46,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:46,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:46,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169849423] [2022-02-21 04:18:46,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:46,304 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:46,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:46,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:46,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:46,305 INFO L87 Difference]: Start difference. First operand 218 states and 290 transitions. cyclomatic complexity: 75 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:46,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:46,545 INFO L93 Difference]: Finished difference Result 277 states and 353 transitions. [2022-02-21 04:18:46,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:46,545 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:46,562 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:46,562 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 277 states and 353 transitions. [2022-02-21 04:18:46,570 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 197 [2022-02-21 04:18:46,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 277 states to 277 states and 353 transitions. [2022-02-21 04:18:46,577 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 277 [2022-02-21 04:18:46,578 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 277 [2022-02-21 04:18:46,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 277 states and 353 transitions. [2022-02-21 04:18:46,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:46,579 INFO L681 BuchiCegarLoop]: Abstraction has 277 states and 353 transitions. [2022-02-21 04:18:46,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states and 353 transitions. [2022-02-21 04:18:46,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2022-02-21 04:18:46,587 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:46,588 INFO L82 GeneralOperation]: Start isEquivalent. First operand 277 states and 353 transitions. Second operand has 277 states, 277 states have (on average 1.2743682310469313) internal successors, (353), 276 states have internal predecessors, (353), 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 04:18:46,588 INFO L74 IsIncluded]: Start isIncluded. First operand 277 states and 353 transitions. Second operand has 277 states, 277 states have (on average 1.2743682310469313) internal successors, (353), 276 states have internal predecessors, (353), 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 04:18:46,589 INFO L87 Difference]: Start difference. First operand 277 states and 353 transitions. Second operand has 277 states, 277 states have (on average 1.2743682310469313) internal successors, (353), 276 states have internal predecessors, (353), 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 04:18:46,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:46,596 INFO L93 Difference]: Finished difference Result 277 states and 353 transitions. [2022-02-21 04:18:46,596 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 353 transitions. [2022-02-21 04:18:46,597 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:46,597 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:46,598 INFO L74 IsIncluded]: Start isIncluded. First operand has 277 states, 277 states have (on average 1.2743682310469313) internal successors, (353), 276 states have internal predecessors, (353), 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 277 states and 353 transitions. [2022-02-21 04:18:46,598 INFO L87 Difference]: Start difference. First operand has 277 states, 277 states have (on average 1.2743682310469313) internal successors, (353), 276 states have internal predecessors, (353), 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 277 states and 353 transitions. [2022-02-21 04:18:46,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:46,606 INFO L93 Difference]: Finished difference Result 277 states and 353 transitions. [2022-02-21 04:18:46,606 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 353 transitions. [2022-02-21 04:18:46,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:46,606 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:46,606 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:46,606 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:46,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 277 states have (on average 1.2743682310469313) internal successors, (353), 276 states have internal predecessors, (353), 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 04:18:46,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 353 transitions. [2022-02-21 04:18:46,614 INFO L704 BuchiCegarLoop]: Abstraction has 277 states and 353 transitions. [2022-02-21 04:18:46,614 INFO L587 BuchiCegarLoop]: Abstraction has 277 states and 353 transitions. [2022-02-21 04:18:46,614 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:46,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 277 states and 353 transitions. [2022-02-21 04:18:46,616 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 197 [2022-02-21 04:18:46,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:46,616 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:46,617 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:46,617 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] [2022-02-21 04:18:46,617 INFO L791 eck$LassoCheckResult]: Stem: 1988#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;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1900#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret17#1, main_~retValue_acc~5#1, main_~tmp~3#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1901#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1954#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1955#L92 main_#t~ret17#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret17#1;havoc main_#t~ret17#1; 1915#L392 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1916#L366 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1918#L480 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1855#L416-2 [2022-02-21 04:18:46,619 INFO L793 eck$LassoCheckResult]: Loop: 1855#L416-2 assume !false; 1898#L417 assume test_~splverifierCounter~0#1 < 4; 1848#L418 test_~tmp~4#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 1849#L426 assume !(0 != test_~tmp~4#1); 1885#L426-2 test_~tmp___0~1#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1886#L436 assume !(0 != test_~tmp___0~1#1); 1897#L436-2 test_~tmp___2~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1935#L446 assume 0 != test_~tmp___2~0#1; 1928#L452-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret22#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 1929#L230 __utac_acc__Specification5_spec__2_#t~ret22#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret22#1;havoc __utac_acc__Specification5_spec__2_#t~ret22#1; 1864#L490 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1865#L119 assume !(0 != ~pumpRunning~0); 1989#L119-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1930#L177 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1872#L151-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#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; 1873#L972-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1887#L977-1 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 1888#L279-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1931#L279-5 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 1933#L285-1 processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1; 1846#L155-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1836#L143-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1837#L151-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1890#L177-1 assume { :end_inline_processEnvironment } true; 1925#L126-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~5#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~5#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; 1926#L964 __utac_acc__Specification5_spec__3_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~5#1 := __utac_acc__Specification5_spec__3_#t~ret23#1;havoc __utac_acc__Specification5_spec__3_#t~ret23#1; 1919#L501 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5#1); 1892#L501-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1854#L136 assume { :end_inline_timeShift } true; 1855#L416-2 [2022-02-21 04:18:46,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:46,623 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:46,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:46,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119280659] [2022-02-21 04:18:46,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:46,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:46,638 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:46,650 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:46,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:46,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1531146000, now seen corresponding path program 1 times [2022-02-21 04:18:46,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:46,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81872542] [2022-02-21 04:18:46,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:46,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:46,689 INFO L290 TraceCheckUtils]: 0: Hoare triple {2664#true} assume !false; {2664#true} is VALID [2022-02-21 04:18:46,689 INFO L290 TraceCheckUtils]: 1: Hoare triple {2664#true} assume test_~splverifierCounter~0#1 < 4; {2664#true} is VALID [2022-02-21 04:18:46,689 INFO L290 TraceCheckUtils]: 2: Hoare triple {2664#true} test_~tmp~4#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {2664#true} is VALID [2022-02-21 04:18:46,689 INFO L290 TraceCheckUtils]: 3: Hoare triple {2664#true} assume !(0 != test_~tmp~4#1); {2664#true} is VALID [2022-02-21 04:18:46,690 INFO L290 TraceCheckUtils]: 4: Hoare triple {2664#true} test_~tmp___0~1#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {2664#true} is VALID [2022-02-21 04:18:46,690 INFO L290 TraceCheckUtils]: 5: Hoare triple {2664#true} assume !(0 != test_~tmp___0~1#1); {2664#true} is VALID [2022-02-21 04:18:46,690 INFO L290 TraceCheckUtils]: 6: Hoare triple {2664#true} test_~tmp___2~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; {2664#true} is VALID [2022-02-21 04:18:46,690 INFO L290 TraceCheckUtils]: 7: Hoare triple {2664#true} assume 0 != test_~tmp___2~0#1; {2664#true} is VALID [2022-02-21 04:18:46,690 INFO L290 TraceCheckUtils]: 8: Hoare triple {2664#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret22#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; {2664#true} is VALID [2022-02-21 04:18:46,690 INFO L290 TraceCheckUtils]: 9: Hoare triple {2664#true} __utac_acc__Specification5_spec__2_#t~ret22#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret22#1;havoc __utac_acc__Specification5_spec__2_#t~ret22#1; {2664#true} is VALID [2022-02-21 04:18:46,691 INFO L290 TraceCheckUtils]: 10: Hoare triple {2664#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {2664#true} is VALID [2022-02-21 04:18:46,691 INFO L290 TraceCheckUtils]: 11: Hoare triple {2664#true} assume !(0 != ~pumpRunning~0); {2664#true} is VALID [2022-02-21 04:18:46,691 INFO L290 TraceCheckUtils]: 12: Hoare triple {2664#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {2664#true} is VALID [2022-02-21 04:18:46,691 INFO L290 TraceCheckUtils]: 13: Hoare triple {2664#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {2664#true} is VALID [2022-02-21 04:18:46,691 INFO L290 TraceCheckUtils]: 14: Hoare triple {2664#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#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; {2664#true} is VALID [2022-02-21 04:18:46,692 INFO L290 TraceCheckUtils]: 15: Hoare triple {2664#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; {2666#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:46,692 INFO L290 TraceCheckUtils]: 16: Hoare triple {2666#(<= ~waterLevel~0 1)} isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; {2666#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:46,693 INFO L290 TraceCheckUtils]: 17: Hoare triple {2666#(<= ~waterLevel~0 1)} assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; {2666#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:46,693 INFO L290 TraceCheckUtils]: 18: Hoare triple {2666#(<= ~waterLevel~0 1)} isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; {2666#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:46,693 INFO L290 TraceCheckUtils]: 19: Hoare triple {2666#(<= ~waterLevel~0 1)} processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1; {2666#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:46,694 INFO L290 TraceCheckUtils]: 20: Hoare triple {2666#(<= ~waterLevel~0 1)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2666#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:46,694 INFO L290 TraceCheckUtils]: 21: Hoare triple {2666#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__base } true; {2666#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:46,694 INFO L290 TraceCheckUtils]: 22: Hoare triple {2666#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {2666#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:46,695 INFO L290 TraceCheckUtils]: 23: Hoare triple {2666#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {2666#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:46,695 INFO L290 TraceCheckUtils]: 24: Hoare triple {2666#(<= ~waterLevel~0 1)} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~5#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~5#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; {2667#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:18:46,696 INFO L290 TraceCheckUtils]: 25: Hoare triple {2667#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __utac_acc__Specification5_spec__3_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~5#1 := __utac_acc__Specification5_spec__3_#t~ret23#1;havoc __utac_acc__Specification5_spec__3_#t~ret23#1; {2668#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~5#1| 1)} is VALID [2022-02-21 04:18:46,696 INFO L290 TraceCheckUtils]: 26: Hoare triple {2668#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~5#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5#1); {2665#false} is VALID [2022-02-21 04:18:46,696 INFO L290 TraceCheckUtils]: 27: Hoare triple {2665#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {2665#false} is VALID [2022-02-21 04:18:46,697 INFO L290 TraceCheckUtils]: 28: Hoare triple {2665#false} assume { :end_inline_timeShift } true; {2665#false} is VALID [2022-02-21 04:18:46,697 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 04:18:46,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:46,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81872542] [2022-02-21 04:18:46,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81872542] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:46,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:46,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:46,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924052441] [2022-02-21 04:18:46,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:46,698 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:46,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:46,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:46,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:46,699 INFO L87 Difference]: Start difference. First operand 277 states and 353 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 04:18:47,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:47,435 INFO L93 Difference]: Finished difference Result 758 states and 945 transitions. [2022-02-21 04:18:47,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:47,435 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 04:18:47,454 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:47,455 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 758 states and 945 transitions. [2022-02-21 04:18:47,484 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 505 [2022-02-21 04:18:47,509 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 758 states to 758 states and 945 transitions. [2022-02-21 04:18:47,509 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 758 [2022-02-21 04:18:47,510 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 758 [2022-02-21 04:18:47,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 758 states and 945 transitions. [2022-02-21 04:18:47,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:47,511 INFO L681 BuchiCegarLoop]: Abstraction has 758 states and 945 transitions. [2022-02-21 04:18:47,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states and 945 transitions. [2022-02-21 04:18:47,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 543. [2022-02-21 04:18:47,528 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:47,529 INFO L82 GeneralOperation]: Start isEquivalent. First operand 758 states and 945 transitions. Second operand has 543 states, 543 states have (on average 1.2467771639042358) internal successors, (677), 542 states have internal predecessors, (677), 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 04:18:47,530 INFO L74 IsIncluded]: Start isIncluded. First operand 758 states and 945 transitions. Second operand has 543 states, 543 states have (on average 1.2467771639042358) internal successors, (677), 542 states have internal predecessors, (677), 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 04:18:47,531 INFO L87 Difference]: Start difference. First operand 758 states and 945 transitions. Second operand has 543 states, 543 states have (on average 1.2467771639042358) internal successors, (677), 542 states have internal predecessors, (677), 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 04:18:47,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:47,555 INFO L93 Difference]: Finished difference Result 758 states and 945 transitions. [2022-02-21 04:18:47,555 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 945 transitions. [2022-02-21 04:18:47,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:47,557 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:47,558 INFO L74 IsIncluded]: Start isIncluded. First operand has 543 states, 543 states have (on average 1.2467771639042358) internal successors, (677), 542 states have internal predecessors, (677), 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 758 states and 945 transitions. [2022-02-21 04:18:47,559 INFO L87 Difference]: Start difference. First operand has 543 states, 543 states have (on average 1.2467771639042358) internal successors, (677), 542 states have internal predecessors, (677), 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 758 states and 945 transitions. [2022-02-21 04:18:47,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:47,583 INFO L93 Difference]: Finished difference Result 758 states and 945 transitions. [2022-02-21 04:18:47,583 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 945 transitions. [2022-02-21 04:18:47,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:47,584 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:47,584 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:47,584 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:47,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 543 states have (on average 1.2467771639042358) internal successors, (677), 542 states have internal predecessors, (677), 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 04:18:47,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 677 transitions. [2022-02-21 04:18:47,598 INFO L704 BuchiCegarLoop]: Abstraction has 543 states and 677 transitions. [2022-02-21 04:18:47,598 INFO L587 BuchiCegarLoop]: Abstraction has 543 states and 677 transitions. [2022-02-21 04:18:47,598 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:18:47,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 543 states and 677 transitions. [2022-02-21 04:18:47,600 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 391 [2022-02-21 04:18:47,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:47,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:47,602 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:47,602 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] [2022-02-21 04:18:47,603 INFO L791 eck$LassoCheckResult]: Stem: 3609#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;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 3508#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret17#1, main_~retValue_acc~5#1, main_~tmp~3#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 3509#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3566#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 3567#L92 main_#t~ret17#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret17#1;havoc main_#t~ret17#1; 3524#L392 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 3525#L366 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3528#L480 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3465#L416-2 [2022-02-21 04:18:47,607 INFO L793 eck$LassoCheckResult]: Loop: 3465#L416-2 assume !false; 3506#L417 assume test_~splverifierCounter~0#1 < 4; 3459#L418 test_~tmp~4#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 3460#L426 assume !(0 != test_~tmp~4#1); 3495#L426-2 test_~tmp___0~1#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 3496#L436 assume !(0 != test_~tmp___0~1#1); 3505#L436-2 test_~tmp___2~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 3543#L446 assume 0 != test_~tmp___2~0#1; 3536#L452-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret22#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 3537#L230 __utac_acc__Specification5_spec__2_#t~ret22#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret22#1;havoc __utac_acc__Specification5_spec__2_#t~ret22#1; 3471#L490 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3472#L119 assume !(0 != ~pumpRunning~0); 3517#L119-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 3518#L177 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 3479#L151-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#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; 3480#L972-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 3606#L977-1 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 3791#L279-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 3786#L279-5 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 3780#L285-1 processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1; 3773#L155-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3774#L143-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3892#L151-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3550#L177-1 assume { :end_inline_processEnvironment } true; 3533#L126-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~5#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~5#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; 3534#L964 __utac_acc__Specification5_spec__3_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~5#1 := __utac_acc__Specification5_spec__3_#t~ret23#1;havoc __utac_acc__Specification5_spec__3_#t~ret23#1; 3529#L501 assume 2 != __utac_acc__Specification5_spec__3_~tmp~5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 3530#L230-1 __utac_acc__Specification5_spec__3_#t~ret24#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret24#1;havoc __utac_acc__Specification5_spec__3_#t~ret24#1; 3501#L505 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 3502#L501-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3464#L136 assume { :end_inline_timeShift } true; 3465#L416-2 [2022-02-21 04:18:47,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:47,608 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:18:47,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:47,609 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34771539] [2022-02-21 04:18:47,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:47,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:47,628 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:47,648 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:47,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:47,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1761572885, now seen corresponding path program 1 times [2022-02-21 04:18:47,649 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:47,649 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582970241] [2022-02-21 04:18:47,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:47,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:47,664 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:47,672 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:47,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:47,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1721354210, now seen corresponding path program 1 times [2022-02-21 04:18:47,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:47,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527856601] [2022-02-21 04:18:47,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:47,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:47,688 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:47,704 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:50,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:50 BoogieIcfgContainer [2022-02-21 04:18:50,707 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:50,707 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:50,707 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:50,708 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:50,708 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 04:18:50,710 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:50,759 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:50,759 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:50,763 INFO L158 Benchmark]: Toolchain (without parser) took 7601.65ms. Allocated memory was 104.9MB in the beginning and 161.5MB in the end (delta: 56.6MB). Free memory was 71.0MB in the beginning and 106.6MB in the end (delta: -35.6MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-02-21 04:18:50,763 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 86.0MB. Free memory was 56.7MB in the beginning and 56.6MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:50,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.89ms. Allocated memory is still 104.9MB. Free memory was 70.7MB in the beginning and 70.4MB in the end (delta: 308.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:18:50,764 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.38ms. Allocated memory is still 104.9MB. Free memory was 70.4MB in the beginning and 66.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:50,764 INFO L158 Benchmark]: Boogie Preprocessor took 28.41ms. Allocated memory is still 104.9MB. Free memory was 66.2MB in the beginning and 63.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:50,764 INFO L158 Benchmark]: RCFGBuilder took 541.32ms. Allocated memory is still 104.9MB. Free memory was 63.5MB in the beginning and 37.5MB in the end (delta: 26.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:50,765 INFO L158 Benchmark]: BuchiAutomizer took 6431.71ms. Allocated memory was 104.9MB in the beginning and 161.5MB in the end (delta: 56.6MB). Free memory was 36.9MB in the beginning and 109.7MB in the end (delta: -72.8MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2022-02-21 04:18:50,765 INFO L158 Benchmark]: Witness Printer took 52.33ms. Allocated memory is still 161.5MB. Free memory was 109.7MB in the beginning and 106.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:50,769 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 86.0MB. Free memory was 56.7MB in the beginning and 56.6MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.89ms. Allocated memory is still 104.9MB. Free memory was 70.7MB in the beginning and 70.4MB in the end (delta: 308.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.38ms. Allocated memory is still 104.9MB. Free memory was 70.4MB in the beginning and 66.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.41ms. Allocated memory is still 104.9MB. Free memory was 66.2MB in the beginning and 63.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 541.32ms. Allocated memory is still 104.9MB. Free memory was 63.5MB in the beginning and 37.5MB in the end (delta: 26.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 6431.71ms. Allocated memory was 104.9MB in the beginning and 161.5MB in the end (delta: 56.6MB). Free memory was 36.9MB in the beginning and 109.7MB in the end (delta: -72.8MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. * Witness Printer took 52.33ms. Allocated memory is still 161.5MB. Free memory was 109.7MB in the beginning and 106.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 543 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.2s. Büchi inclusion checks took 1.8s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 366 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 543 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1864 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1864 mSDsluCounter, 2372 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1646 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 158 IncrementalHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 726 mSDtfsCounter, 158 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 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: 416]: 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@1e912713=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61050c3a=0, tmp___0=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, retValue_acc=0, methaneLevelCritical=0, retValue_acc=1, tmp=1, retValue_acc=1, retValue_acc=1, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76708fc4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49dfa290=0, tmp=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fee662d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13ce4577=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9d7d12=0, \result=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@742d4806=29, cleanupTimeShifts=4, switchedOnBeforeTS=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@499e6818=0, \result=0, tmp=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@186b910=0, head=0, \result=1, retValue_acc=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49dd1ea=0, tmp=0, \result=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 416]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L107] int pumpRunning = 0; [L108] int systemActive = 1; [L305] int cleanupTimeShifts = 4; [L474] int switchedOnBeforeTS ; [L692] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L889] int waterLevel = 1; [L890] int methaneLevelCritical = 0; [L383] int retValue_acc ; [L384] int tmp ; [L388] FCALL select_helpers() [L389] FCALL select_features() [L390] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); [L390] RET, EXPR valid_product() [L390] tmp = valid_product() [L392] COND TRUE \read(tmp) [L394] FCALL setup() [L395] CALL runTest() [L376] CALL __utac_acc__Specification5_spec__1() [L479] switchedOnBeforeTS = 0 [L376] RET __utac_acc__Specification5_spec__1() [L377] CALL test() [L407] int splverifierCounter ; [L408] int tmp ; [L409] int tmp___0 ; [L410] int tmp___1 ; [L411] int tmp___2 ; [L414] splverifierCounter = 0 Loop: [L416] COND TRUE 1 [L418] COND TRUE splverifierCounter < 4 [L424] tmp = __VERIFIER_nondet_int() [L426] COND FALSE !(\read(tmp)) [L434] tmp___0 = __VERIFIER_nondet_int() [L436] COND FALSE !(\read(tmp___0)) [L444] tmp___2 = __VERIFIER_nondet_int() [L446] COND TRUE \read(tmp___2) [L461] CALL timeShift() [L117] CALL __utac_acc__Specification5_spec__2() [L488] CALL, EXPR isPumpRunning() [L226] int retValue_acc ; [L229] retValue_acc = pumpRunning [L230] return (retValue_acc); [L488] RET, EXPR isPumpRunning() [L488] switchedOnBeforeTS = isPumpRunning() [L117] RET __utac_acc__Specification5_spec__2() [L119] COND FALSE !(\read(pumpRunning)) [L126] COND TRUE \read(systemActive) [L128] CALL processEnvironment() [L174] int tmp ; [L177] COND FALSE !(\read(pumpRunning)) [L192] CALL processEnvironment__wrappee__highWaterSensor() [L148] int tmp ; [L151] COND TRUE ! pumpRunning [L153] CALL, EXPR isHighWaterLevel() [L271] int retValue_acc ; [L272] int tmp ; [L273] int tmp___0 ; [L277] CALL, EXPR isHighWaterSensorDry() [L969] int retValue_acc ; [L972] COND TRUE waterLevel < 2 [L973] retValue_acc = 1 [L974] return (retValue_acc); [L277] RET, EXPR isHighWaterSensorDry() [L277] tmp = isHighWaterSensorDry() [L279] COND TRUE \read(tmp) [L280] tmp___0 = 0 [L284] retValue_acc = tmp___0 [L285] return (retValue_acc); [L153] RET, EXPR isHighWaterLevel() [L153] tmp = isHighWaterLevel() [L155] COND FALSE !(\read(tmp)) [L161] FCALL processEnvironment__wrappee__base() [L192] RET processEnvironment__wrappee__highWaterSensor() [L128] RET processEnvironment() [L134] CALL __utac_acc__Specification5_spec__3() [L494] int tmp ; [L495] int tmp___0 ; [L499] CALL, EXPR getWaterLevel() [L960] int retValue_acc ; [L963] retValue_acc = waterLevel [L964] return (retValue_acc); [L499] RET, EXPR getWaterLevel() [L499] tmp = getWaterLevel() [L501] COND TRUE tmp != 2 [L503] CALL, EXPR isPumpRunning() [L226] int retValue_acc ; [L229] retValue_acc = pumpRunning [L230] return (retValue_acc); [L503] RET, EXPR isPumpRunning() [L503] tmp___0 = isPumpRunning() [L505] COND FALSE !(\read(tmp___0)) [L134] RET __utac_acc__Specification5_spec__3() [L461] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:50,810 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)