./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product52.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_product52.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 4074665f53184e0f9778b3e4e6ee9c58d8a047121518f9c126ceccd876afea36 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:52,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:52,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:53,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:53,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:53,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:53,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:53,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:53,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:53,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:53,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:53,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:53,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:53,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:53,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:53,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:53,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:53,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:53,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:53,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:53,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:53,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:53,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:53,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:53,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:53,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:53,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:53,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:53,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:53,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:53,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:53,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:53,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:53,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:53,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:53,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:53,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:53,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:53,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:53,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:53,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:53,085 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:53,111 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:53,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:53,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:53,112 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:53,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:53,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:53,114 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:53,114 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:53,114 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:53,114 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:53,114 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:53,115 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:53,115 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:53,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:53,115 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:53,115 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:53,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:53,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:53,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:53,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:53,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:53,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:53,117 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:53,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:53,117 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:53,117 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:53,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:53,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:53,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:53,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:53,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:53,119 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:53,120 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4074665f53184e0f9778b3e4e6ee9c58d8a047121518f9c126ceccd876afea36 [2022-02-21 04:18:53,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:53,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:53,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:53,368 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:53,369 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:53,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2022-02-21 04:18:53,434 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ff457fd/9f01a775527c430b8f8781db02eb7d06/FLAG574f3fded [2022-02-21 04:18:53,880 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:53,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2022-02-21 04:18:53,903 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ff457fd/9f01a775527c430b8f8781db02eb7d06/FLAG574f3fded [2022-02-21 04:18:54,232 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ff457fd/9f01a775527c430b8f8781db02eb7d06 [2022-02-21 04:18:54,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:54,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:54,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:54,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:54,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:54,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:54" (1/1) ... [2022-02-21 04:18:54,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@654d4eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:54, skipping insertion in model container [2022-02-21 04:18:54,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:54" (1/1) ... [2022-02-21 04:18:54,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:54,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:54,554 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_product52.cil.c[12672,12685] [2022-02-21 04:18:54,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:54,639 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:54,699 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_product52.cil.c[12672,12685] [2022-02-21 04:18:54,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:54,734 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:54,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:54 WrapperNode [2022-02-21 04:18:54,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:54,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:54,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:54,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:54,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:54" (1/1) ... [2022-02-21 04:18:54,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:54" (1/1) ... [2022-02-21 04:18:54,817 INFO L137 Inliner]: procedures = 59, calls = 160, calls flagged for inlining = 57, calls inlined = 87, statements flattened = 649 [2022-02-21 04:18:54,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:54,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:54,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:54,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:54,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:54" (1/1) ... [2022-02-21 04:18:54,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:54" (1/1) ... [2022-02-21 04:18:54,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:54" (1/1) ... [2022-02-21 04:18:54,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:54" (1/1) ... [2022-02-21 04:18:54,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:54" (1/1) ... [2022-02-21 04:18:54,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:54" (1/1) ... [2022-02-21 04:18:54,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:54" (1/1) ... [2022-02-21 04:18:54,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:54,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:54,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:54,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:54,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:54" (1/1) ... [2022-02-21 04:18:54,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:54,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:54,923 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 04:18:54,935 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 04:18:54,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:54,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:55,049 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:55,051 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:55,579 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:55,587 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:55,588 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:55,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:55 BoogieIcfgContainer [2022-02-21 04:18:55,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:55,595 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:55,595 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:55,600 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:55,601 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:55,601 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:54" (1/3) ... [2022-02-21 04:18:55,602 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41448c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:55, skipping insertion in model container [2022-02-21 04:18:55,603 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:55,603 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:54" (2/3) ... [2022-02-21 04:18:55,604 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41448c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:55, skipping insertion in model container [2022-02-21 04:18:55,604 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:55,604 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:55" (3/3) ... [2022-02-21 04:18:55,605 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product52.cil.c [2022-02-21 04:18:55,657 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:55,657 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:55,658 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:55,658 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:55,658 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:55,658 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:55,658 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:55,658 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:55,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 177 states, 176 states have (on average 1.3693181818181819) internal successors, (241), 176 states have internal predecessors, (241), 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 04:18:55,732 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2022-02-21 04:18:55,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:55,733 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:55,739 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:55,739 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:55,739 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:55,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 177 states, 176 states have (on average 1.3693181818181819) internal successors, (241), 176 states have internal predecessors, (241), 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 04:18:55,764 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2022-02-21 04:18:55,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:55,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:55,766 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:55,766 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:55,770 INFO L791 eck$LassoCheckResult]: Stem: 164#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 58#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 136#L1008true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 53#L1001true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 22#L1016true main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 49#L508true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 90#L479true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 72#L539true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 150#L702-2true [2022-02-21 04:18:55,776 INFO L793 eck$LassoCheckResult]: Loop: 150#L702-2true assume !false; 20#L703true assume test_~splverifierCounter~0#1 < 4; 75#L704true test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 86#L712true assume !(0 != test_~tmp~5#1); 77#L712-2true test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 83#L722true assume !(0 != test_~tmp___0~1#1); 177#L722-2true test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 42#L732true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 65#L740true assume !(0 != test_~tmp___1~0#1); 46#L740-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 40#L884true __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 69#L549true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 67#L773true assume !(0 != ~pumpRunning~0); 34#L773-2true assume !(0 != ~systemActive~0); 15#L780-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 68#L662true __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 33#L560true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 144#L560-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 94#L790true assume { :end_inline_timeShift } true; 150#L702-2true [2022-02-21 04:18:55,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:55,780 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:55,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:55,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050402297] [2022-02-21 04:18:55,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:55,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:55,944 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:56,015 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:56,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:56,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1925616167, now seen corresponding path program 1 times [2022-02-21 04:18:56,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:56,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899811407] [2022-02-21 04:18:56,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:56,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:56,051 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:56,061 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:56,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:56,064 INFO L85 PathProgramCache]: Analyzing trace with hash -495867824, now seen corresponding path program 1 times [2022-02-21 04:18:56,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:56,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817826270] [2022-02-21 04:18:56,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:56,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:56,279 INFO L290 TraceCheckUtils]: 0: Hoare triple {185#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; {187#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:56,280 INFO L290 TraceCheckUtils]: 1: Hoare triple {187#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; {187#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:56,280 INFO L290 TraceCheckUtils]: 2: Hoare triple {187#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {187#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:56,281 INFO L290 TraceCheckUtils]: 3: Hoare triple {187#(= 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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; {188#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:56,281 INFO L290 TraceCheckUtils]: 4: Hoare triple {188#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; {189#(= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0)} is VALID [2022-02-21 04:18:56,282 INFO L290 TraceCheckUtils]: 5: Hoare triple {189#(= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0)} assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; {190#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,283 INFO L290 TraceCheckUtils]: 6: Hoare triple {190#(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; {190#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,283 INFO L290 TraceCheckUtils]: 7: Hoare triple {190#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {190#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,284 INFO L290 TraceCheckUtils]: 8: Hoare triple {190#(not (= 0 ~systemActive~0))} assume !false; {190#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,284 INFO L290 TraceCheckUtils]: 9: Hoare triple {190#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {190#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,285 INFO L290 TraceCheckUtils]: 10: Hoare triple {190#(not (= 0 ~systemActive~0))} test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; {190#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,285 INFO L290 TraceCheckUtils]: 11: Hoare triple {190#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~5#1); {190#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,286 INFO L290 TraceCheckUtils]: 12: Hoare triple {190#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {190#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,286 INFO L290 TraceCheckUtils]: 13: Hoare triple {190#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {190#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,287 INFO L290 TraceCheckUtils]: 14: Hoare triple {190#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {190#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,287 INFO L290 TraceCheckUtils]: 15: Hoare triple {190#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {190#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,288 INFO L290 TraceCheckUtils]: 16: Hoare triple {190#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___1~0#1); {190#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,288 INFO L290 TraceCheckUtils]: 17: Hoare triple {190#(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~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; {190#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,289 INFO L290 TraceCheckUtils]: 18: Hoare triple {190#(not (= 0 ~systemActive~0))} __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; {190#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,290 INFO L290 TraceCheckUtils]: 19: Hoare triple {190#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {190#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,290 INFO L290 TraceCheckUtils]: 20: Hoare triple {190#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {190#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,291 INFO L290 TraceCheckUtils]: 21: Hoare triple {190#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {186#false} is VALID [2022-02-21 04:18:56,291 INFO L290 TraceCheckUtils]: 22: Hoare triple {186#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {186#false} is VALID [2022-02-21 04:18:56,291 INFO L290 TraceCheckUtils]: 23: Hoare triple {186#false} __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; {186#false} is VALID [2022-02-21 04:18:56,291 INFO L290 TraceCheckUtils]: 24: Hoare triple {186#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); {186#false} is VALID [2022-02-21 04:18:56,292 INFO L290 TraceCheckUtils]: 25: Hoare triple {186#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {186#false} is VALID [2022-02-21 04:18:56,292 INFO L290 TraceCheckUtils]: 26: Hoare triple {186#false} assume { :end_inline_timeShift } true; {186#false} is VALID [2022-02-21 04:18:56,293 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 04:18:56,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:56,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817826270] [2022-02-21 04:18:56,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817826270] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:56,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:56,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:56,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083734253] [2022-02-21 04:18:56,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:56,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:56,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:56,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:56,506 INFO L87 Difference]: Start difference. First operand has 177 states, 176 states have (on average 1.3693181818181819) internal successors, (241), 176 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:57,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:57,676 INFO L93 Difference]: Finished difference Result 577 states and 759 transitions. [2022-02-21 04:18:57,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:57,678 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:57,711 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:57,715 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 577 states and 759 transitions. [2022-02-21 04:18:57,749 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 376 [2022-02-21 04:18:57,777 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 577 states to 537 states and 719 transitions. [2022-02-21 04:18:57,778 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 537 [2022-02-21 04:18:57,779 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 537 [2022-02-21 04:18:57,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 537 states and 719 transitions. [2022-02-21 04:18:57,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:57,782 INFO L681 BuchiCegarLoop]: Abstraction has 537 states and 719 transitions. [2022-02-21 04:18:57,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states and 719 transitions. [2022-02-21 04:18:57,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 225. [2022-02-21 04:18:57,818 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:57,820 INFO L82 GeneralOperation]: Start isEquivalent. First operand 537 states and 719 transitions. Second operand has 225 states, 225 states have (on average 1.3333333333333333) internal successors, (300), 224 states have internal predecessors, (300), 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 04:18:57,821 INFO L74 IsIncluded]: Start isIncluded. First operand 537 states and 719 transitions. Second operand has 225 states, 225 states have (on average 1.3333333333333333) internal successors, (300), 224 states have internal predecessors, (300), 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 04:18:57,823 INFO L87 Difference]: Start difference. First operand 537 states and 719 transitions. Second operand has 225 states, 225 states have (on average 1.3333333333333333) internal successors, (300), 224 states have internal predecessors, (300), 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 04:18:57,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:57,844 INFO L93 Difference]: Finished difference Result 537 states and 719 transitions. [2022-02-21 04:18:57,845 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 719 transitions. [2022-02-21 04:18:57,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:57,849 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:57,850 INFO L74 IsIncluded]: Start isIncluded. First operand has 225 states, 225 states have (on average 1.3333333333333333) internal successors, (300), 224 states have internal predecessors, (300), 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 537 states and 719 transitions. [2022-02-21 04:18:57,851 INFO L87 Difference]: Start difference. First operand has 225 states, 225 states have (on average 1.3333333333333333) internal successors, (300), 224 states have internal predecessors, (300), 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 537 states and 719 transitions. [2022-02-21 04:18:57,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:57,870 INFO L93 Difference]: Finished difference Result 537 states and 719 transitions. [2022-02-21 04:18:57,870 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 719 transitions. [2022-02-21 04:18:57,872 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:57,872 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:57,872 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:57,872 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:57,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 225 states have (on average 1.3333333333333333) internal successors, (300), 224 states have internal predecessors, (300), 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 04:18:57,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 300 transitions. [2022-02-21 04:18:57,880 INFO L704 BuchiCegarLoop]: Abstraction has 225 states and 300 transitions. [2022-02-21 04:18:57,880 INFO L587 BuchiCegarLoop]: Abstraction has 225 states and 300 transitions. [2022-02-21 04:18:57,880 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:57,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 225 states and 300 transitions. [2022-02-21 04:18:57,882 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 157 [2022-02-21 04:18:57,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:57,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:57,883 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:57,883 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:57,884 INFO L791 eck$LassoCheckResult]: Stem: 935#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 862#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 863#L1008 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 855#L1001 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 813#L1016 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 814#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 852#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 878#L539 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 879#L702-2 [2022-02-21 04:18:57,884 INFO L793 eck$LassoCheckResult]: Loop: 879#L702-2 assume !false; 808#L703 assume test_~splverifierCounter~0#1 < 4; 809#L704 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 883#L712 assume !(0 != test_~tmp~5#1); 884#L712-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 885#L722 assume !(0 != test_~tmp___0~1#1); 893#L722-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 844#L732 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 787#L982 assume { :end_inline_startSystem } true; 788#L740-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 840#L884 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 841#L549 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 870#L773 assume !(0 != ~pumpRunning~0); 831#L773-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 832#L831 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 928#L805-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 833#L797-3 assume { :end_inline_processEnvironment__wrappee__base } true; 834#L805-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 858#L831-1 assume { :end_inline_processEnvironment } true; 797#L780-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 798#L662 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 829#L560 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 819#L560-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 900#L790 assume { :end_inline_timeShift } true; 879#L702-2 [2022-02-21 04:18:57,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:57,885 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:57,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:57,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735718990] [2022-02-21 04:18:57,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:57,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:57,899 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:57,911 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:57,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:57,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1569690533, now seen corresponding path program 1 times [2022-02-21 04:18:57,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:57,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934453427] [2022-02-21 04:18:57,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:57,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:57,928 INFO L290 TraceCheckUtils]: 0: Hoare triple {2076#true} assume !false; {2076#true} is VALID [2022-02-21 04:18:57,929 INFO L290 TraceCheckUtils]: 1: Hoare triple {2076#true} assume test_~splverifierCounter~0#1 < 4; {2076#true} is VALID [2022-02-21 04:18:57,929 INFO L290 TraceCheckUtils]: 2: Hoare triple {2076#true} test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; {2076#true} is VALID [2022-02-21 04:18:57,929 INFO L290 TraceCheckUtils]: 3: Hoare triple {2076#true} assume !(0 != test_~tmp~5#1); {2076#true} is VALID [2022-02-21 04:18:57,929 INFO L290 TraceCheckUtils]: 4: Hoare triple {2076#true} test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {2076#true} is VALID [2022-02-21 04:18:57,929 INFO L290 TraceCheckUtils]: 5: Hoare triple {2076#true} assume !(0 != test_~tmp___0~1#1); {2076#true} is VALID [2022-02-21 04:18:57,930 INFO L290 TraceCheckUtils]: 6: Hoare triple {2076#true} test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {2076#true} is VALID [2022-02-21 04:18:57,930 INFO L290 TraceCheckUtils]: 7: Hoare triple {2076#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {2076#true} is VALID [2022-02-21 04:18:57,930 INFO L290 TraceCheckUtils]: 8: Hoare triple {2076#true} assume { :end_inline_startSystem } true; {2076#true} is VALID [2022-02-21 04:18:57,930 INFO L290 TraceCheckUtils]: 9: Hoare triple {2076#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; {2076#true} is VALID [2022-02-21 04:18:57,931 INFO L290 TraceCheckUtils]: 10: Hoare triple {2076#true} __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; {2076#true} is VALID [2022-02-21 04:18:57,931 INFO L290 TraceCheckUtils]: 11: Hoare triple {2076#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {2076#true} is VALID [2022-02-21 04:18:57,931 INFO L290 TraceCheckUtils]: 12: Hoare triple {2076#true} assume !(0 != ~pumpRunning~0); {2078#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:57,932 INFO L290 TraceCheckUtils]: 13: Hoare triple {2078#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; {2078#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:57,932 INFO L290 TraceCheckUtils]: 14: Hoare triple {2078#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; {2078#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:57,933 INFO L290 TraceCheckUtils]: 15: Hoare triple {2078#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {2077#false} is VALID [2022-02-21 04:18:57,933 INFO L290 TraceCheckUtils]: 16: Hoare triple {2077#false} assume { :end_inline_processEnvironment__wrappee__base } true; {2077#false} is VALID [2022-02-21 04:18:57,933 INFO L290 TraceCheckUtils]: 17: Hoare triple {2077#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {2077#false} is VALID [2022-02-21 04:18:57,933 INFO L290 TraceCheckUtils]: 18: Hoare triple {2077#false} assume { :end_inline_processEnvironment } true; {2077#false} is VALID [2022-02-21 04:18:57,934 INFO L290 TraceCheckUtils]: 19: Hoare triple {2077#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {2077#false} is VALID [2022-02-21 04:18:57,934 INFO L290 TraceCheckUtils]: 20: Hoare triple {2077#false} __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; {2077#false} is VALID [2022-02-21 04:18:57,934 INFO L290 TraceCheckUtils]: 21: Hoare triple {2077#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); {2077#false} is VALID [2022-02-21 04:18:57,934 INFO L290 TraceCheckUtils]: 22: Hoare triple {2077#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {2077#false} is VALID [2022-02-21 04:18:57,935 INFO L290 TraceCheckUtils]: 23: Hoare triple {2077#false} assume { :end_inline_timeShift } true; {2077#false} is VALID [2022-02-21 04:18:57,935 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 04:18:57,935 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:57,935 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934453427] [2022-02-21 04:18:57,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934453427] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:57,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:57,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:57,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722844955] [2022-02-21 04:18:57,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:57,937 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:57,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:57,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:57,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:57,938 INFO L87 Difference]: Start difference. First operand 225 states and 300 transitions. cyclomatic complexity: 78 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:58,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,182 INFO L93 Difference]: Finished difference Result 285 states and 364 transitions. [2022-02-21 04:18:58,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:58,183 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:58,201 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:58,202 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 285 states and 364 transitions. [2022-02-21 04:18:58,211 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 203 [2022-02-21 04:18:58,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 285 states to 285 states and 364 transitions. [2022-02-21 04:18:58,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 285 [2022-02-21 04:18:58,219 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 285 [2022-02-21 04:18:58,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 285 states and 364 transitions. [2022-02-21 04:18:58,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:58,221 INFO L681 BuchiCegarLoop]: Abstraction has 285 states and 364 transitions. [2022-02-21 04:18:58,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states and 364 transitions. [2022-02-21 04:18:58,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-02-21 04:18:58,241 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:58,242 INFO L82 GeneralOperation]: Start isEquivalent. First operand 285 states and 364 transitions. Second operand has 285 states, 285 states have (on average 1.2771929824561403) internal successors, (364), 284 states have internal predecessors, (364), 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 04:18:58,243 INFO L74 IsIncluded]: Start isIncluded. First operand 285 states and 364 transitions. Second operand has 285 states, 285 states have (on average 1.2771929824561403) internal successors, (364), 284 states have internal predecessors, (364), 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 04:18:58,244 INFO L87 Difference]: Start difference. First operand 285 states and 364 transitions. Second operand has 285 states, 285 states have (on average 1.2771929824561403) internal successors, (364), 284 states have internal predecessors, (364), 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 04:18:58,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,252 INFO L93 Difference]: Finished difference Result 285 states and 364 transitions. [2022-02-21 04:18:58,252 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 364 transitions. [2022-02-21 04:18:58,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:58,253 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:58,254 INFO L74 IsIncluded]: Start isIncluded. First operand has 285 states, 285 states have (on average 1.2771929824561403) internal successors, (364), 284 states have internal predecessors, (364), 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 285 states and 364 transitions. [2022-02-21 04:18:58,254 INFO L87 Difference]: Start difference. First operand has 285 states, 285 states have (on average 1.2771929824561403) internal successors, (364), 284 states have internal predecessors, (364), 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 285 states and 364 transitions. [2022-02-21 04:18:58,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,262 INFO L93 Difference]: Finished difference Result 285 states and 364 transitions. [2022-02-21 04:18:58,262 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 364 transitions. [2022-02-21 04:18:58,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:58,263 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:58,263 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:58,263 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:58,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 285 states have (on average 1.2771929824561403) internal successors, (364), 284 states have internal predecessors, (364), 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 04:18:58,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 364 transitions. [2022-02-21 04:18:58,285 INFO L704 BuchiCegarLoop]: Abstraction has 285 states and 364 transitions. [2022-02-21 04:18:58,285 INFO L587 BuchiCegarLoop]: Abstraction has 285 states and 364 transitions. [2022-02-21 04:18:58,286 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:58,286 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 285 states and 364 transitions. [2022-02-21 04:18:58,287 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 203 [2022-02-21 04:18:58,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:58,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:58,289 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:58,293 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:58,294 INFO L791 eck$LassoCheckResult]: Stem: 2541#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2452#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 2453#L1008 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2442#L1001 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 2402#L1016 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 2403#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 2438#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2468#L539 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2469#L702-2 [2022-02-21 04:18:58,294 INFO L793 eck$LassoCheckResult]: Loop: 2469#L702-2 assume !false; 2397#L703 assume test_~splverifierCounter~0#1 < 4; 2398#L704 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 2473#L712 assume !(0 != test_~tmp~5#1); 2474#L712-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 2475#L722 assume !(0 != test_~tmp___0~1#1); 2483#L722-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 2429#L732 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2376#L982 assume { :end_inline_startSystem } true; 2377#L740-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 2425#L884 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 2426#L549 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2460#L773 assume !(0 != ~pumpRunning~0); 2418#L773-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 2419#L831 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 2527#L805-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 2510#L670-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 2511#L675-1 isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; 2508#L933-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2509#L933-5 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 2412#L939-1 processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 2392#L809-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2393#L797-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2435#L805-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2447#L831-1 assume { :end_inline_processEnvironment } true; 2448#L780-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 2461#L662 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 2416#L560 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 2408#L560-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2611#L790 assume { :end_inline_timeShift } true; 2469#L702-2 [2022-02-21 04:18:58,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:58,296 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:58,296 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:58,297 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085859216] [2022-02-21 04:18:58,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:58,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:58,310 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:58,335 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:58,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:58,335 INFO L85 PathProgramCache]: Analyzing trace with hash 746500529, now seen corresponding path program 1 times [2022-02-21 04:18:58,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:58,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746948612] [2022-02-21 04:18:58,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:58,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:58,371 INFO L290 TraceCheckUtils]: 0: Hoare triple {3224#true} assume !false; {3224#true} is VALID [2022-02-21 04:18:58,371 INFO L290 TraceCheckUtils]: 1: Hoare triple {3224#true} assume test_~splverifierCounter~0#1 < 4; {3224#true} is VALID [2022-02-21 04:18:58,372 INFO L290 TraceCheckUtils]: 2: Hoare triple {3224#true} test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; {3224#true} is VALID [2022-02-21 04:18:58,372 INFO L290 TraceCheckUtils]: 3: Hoare triple {3224#true} assume !(0 != test_~tmp~5#1); {3224#true} is VALID [2022-02-21 04:18:58,372 INFO L290 TraceCheckUtils]: 4: Hoare triple {3224#true} test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {3224#true} is VALID [2022-02-21 04:18:58,372 INFO L290 TraceCheckUtils]: 5: Hoare triple {3224#true} assume !(0 != test_~tmp___0~1#1); {3224#true} is VALID [2022-02-21 04:18:58,373 INFO L290 TraceCheckUtils]: 6: Hoare triple {3224#true} test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {3224#true} is VALID [2022-02-21 04:18:58,373 INFO L290 TraceCheckUtils]: 7: Hoare triple {3224#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {3224#true} is VALID [2022-02-21 04:18:58,373 INFO L290 TraceCheckUtils]: 8: Hoare triple {3224#true} assume { :end_inline_startSystem } true; {3224#true} is VALID [2022-02-21 04:18:58,373 INFO L290 TraceCheckUtils]: 9: Hoare triple {3224#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; {3224#true} is VALID [2022-02-21 04:18:58,373 INFO L290 TraceCheckUtils]: 10: Hoare triple {3224#true} __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; {3224#true} is VALID [2022-02-21 04:18:58,374 INFO L290 TraceCheckUtils]: 11: Hoare triple {3224#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {3224#true} is VALID [2022-02-21 04:18:58,374 INFO L290 TraceCheckUtils]: 12: Hoare triple {3224#true} assume !(0 != ~pumpRunning~0); {3224#true} is VALID [2022-02-21 04:18:58,374 INFO L290 TraceCheckUtils]: 13: Hoare triple {3224#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; {3224#true} is VALID [2022-02-21 04:18:58,374 INFO L290 TraceCheckUtils]: 14: Hoare triple {3224#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; {3224#true} is VALID [2022-02-21 04:18:58,375 INFO L290 TraceCheckUtils]: 15: Hoare triple {3224#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; {3224#true} is VALID [2022-02-21 04:18:58,375 INFO L290 TraceCheckUtils]: 16: Hoare triple {3224#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; {3226#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} is VALID [2022-02-21 04:18:58,376 INFO L290 TraceCheckUtils]: 17: Hoare triple {3226#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; {3227#(= |ULTIMATE.start_isHighWaterLevel_~tmp~8#1| 0)} is VALID [2022-02-21 04:18:58,376 INFO L290 TraceCheckUtils]: 18: Hoare triple {3227#(= |ULTIMATE.start_isHighWaterLevel_~tmp~8#1| 0)} assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; {3225#false} is VALID [2022-02-21 04:18:58,376 INFO L290 TraceCheckUtils]: 19: Hoare triple {3225#false} isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; {3225#false} is VALID [2022-02-21 04:18:58,377 INFO L290 TraceCheckUtils]: 20: Hoare triple {3225#false} processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; {3225#false} is VALID [2022-02-21 04:18:58,377 INFO L290 TraceCheckUtils]: 21: Hoare triple {3225#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {3225#false} is VALID [2022-02-21 04:18:58,377 INFO L290 TraceCheckUtils]: 22: Hoare triple {3225#false} assume { :end_inline_processEnvironment__wrappee__base } true; {3225#false} is VALID [2022-02-21 04:18:58,378 INFO L290 TraceCheckUtils]: 23: Hoare triple {3225#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {3225#false} is VALID [2022-02-21 04:18:58,380 INFO L290 TraceCheckUtils]: 24: Hoare triple {3225#false} assume { :end_inline_processEnvironment } true; {3225#false} is VALID [2022-02-21 04:18:58,381 INFO L290 TraceCheckUtils]: 25: Hoare triple {3225#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {3225#false} is VALID [2022-02-21 04:18:58,381 INFO L290 TraceCheckUtils]: 26: Hoare triple {3225#false} __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; {3225#false} is VALID [2022-02-21 04:18:58,381 INFO L290 TraceCheckUtils]: 27: Hoare triple {3225#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); {3225#false} is VALID [2022-02-21 04:18:58,381 INFO L290 TraceCheckUtils]: 28: Hoare triple {3225#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {3225#false} is VALID [2022-02-21 04:18:58,382 INFO L290 TraceCheckUtils]: 29: Hoare triple {3225#false} assume { :end_inline_timeShift } true; {3225#false} is VALID [2022-02-21 04:18:58,382 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 04:18:58,382 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:58,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746948612] [2022-02-21 04:18:58,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746948612] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:58,383 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:58,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:18:58,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060076769] [2022-02-21 04:18:58,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:58,384 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:58,385 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:58,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 04:18:58,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 04:18:58,386 INFO L87 Difference]: Start difference. First operand 285 states and 364 transitions. cyclomatic complexity: 82 Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:58,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,955 INFO L93 Difference]: Finished difference Result 815 states and 1028 transitions. [2022-02-21 04:18:58,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:18:58,955 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:58,986 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:58,986 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 815 states and 1028 transitions. [2022-02-21 04:18:59,017 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 593 [2022-02-21 04:18:59,046 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 815 states to 815 states and 1028 transitions. [2022-02-21 04:18:59,046 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 815 [2022-02-21 04:18:59,047 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 815 [2022-02-21 04:18:59,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 815 states and 1028 transitions. [2022-02-21 04:18:59,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:59,048 INFO L681 BuchiCegarLoop]: Abstraction has 815 states and 1028 transitions. [2022-02-21 04:18:59,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states and 1028 transitions. [2022-02-21 04:18:59,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 297. [2022-02-21 04:18:59,055 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:59,056 INFO L82 GeneralOperation]: Start isEquivalent. First operand 815 states and 1028 transitions. Second operand has 297 states, 297 states have (on average 1.265993265993266) internal successors, (376), 296 states have internal predecessors, (376), 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 04:18:59,057 INFO L74 IsIncluded]: Start isIncluded. First operand 815 states and 1028 transitions. Second operand has 297 states, 297 states have (on average 1.265993265993266) internal successors, (376), 296 states have internal predecessors, (376), 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 04:18:59,057 INFO L87 Difference]: Start difference. First operand 815 states and 1028 transitions. Second operand has 297 states, 297 states have (on average 1.265993265993266) internal successors, (376), 296 states have internal predecessors, (376), 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 04:18:59,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:59,084 INFO L93 Difference]: Finished difference Result 815 states and 1028 transitions. [2022-02-21 04:18:59,084 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1028 transitions. [2022-02-21 04:18:59,085 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:59,085 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:59,087 INFO L74 IsIncluded]: Start isIncluded. First operand has 297 states, 297 states have (on average 1.265993265993266) internal successors, (376), 296 states have internal predecessors, (376), 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 815 states and 1028 transitions. [2022-02-21 04:18:59,087 INFO L87 Difference]: Start difference. First operand has 297 states, 297 states have (on average 1.265993265993266) internal successors, (376), 296 states have internal predecessors, (376), 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 815 states and 1028 transitions. [2022-02-21 04:18:59,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:59,114 INFO L93 Difference]: Finished difference Result 815 states and 1028 transitions. [2022-02-21 04:18:59,115 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1028 transitions. [2022-02-21 04:18:59,116 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:59,116 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:59,116 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:59,116 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:59,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 297 states have (on average 1.265993265993266) internal successors, (376), 296 states have internal predecessors, (376), 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 04:18:59,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 376 transitions. [2022-02-21 04:18:59,122 INFO L704 BuchiCegarLoop]: Abstraction has 297 states and 376 transitions. [2022-02-21 04:18:59,122 INFO L587 BuchiCegarLoop]: Abstraction has 297 states and 376 transitions. [2022-02-21 04:18:59,122 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:18:59,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 297 states and 376 transitions. [2022-02-21 04:18:59,124 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 211 [2022-02-21 04:18:59,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:59,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:59,125 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:59,125 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:59,125 INFO L791 eck$LassoCheckResult]: Stem: 4232#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 4137#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 4138#L1008 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4129#L1001 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 4085#L1016 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 4086#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 4123#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 4153#L539 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4154#L702-2 [2022-02-21 04:18:59,126 INFO L793 eck$LassoCheckResult]: Loop: 4154#L702-2 assume !false; 4080#L703 assume test_~splverifierCounter~0#1 < 4; 4081#L704 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 4320#L712 assume !(0 != test_~tmp~5#1); 4318#L712-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 4316#L722 assume !(0 != test_~tmp___0~1#1); 4237#L722-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 4114#L732 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 4115#L740 assume !(0 != test_~tmp___1~0#1); 4059#L740-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 4110#L884 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 4111#L549 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 4145#L773 assume !(0 != ~pumpRunning~0); 4102#L773-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 4103#L831 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 4216#L805-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 4197#L670-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 4198#L675-1 isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; 4195#L933-3 assume !(0 != isHighWaterLevel_~tmp~8#1);isHighWaterLevel_~tmp___0~2#1 := 1; 4196#L933-5 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 4096#L939-1 processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 4075#L809-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4076#L797-2 assume { :end_inline_processEnvironment__wrappee__base } true; 4120#L805-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4133#L831-1 assume { :end_inline_processEnvironment } true; 4069#L780-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 4070#L662 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 4100#L560 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 4092#L560-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 4179#L790 assume { :end_inline_timeShift } true; 4154#L702-2 [2022-02-21 04:18:59,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:59,126 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:18:59,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:59,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209185317] [2022-02-21 04:18:59,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:59,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:59,136 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:59,152 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:59,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:59,153 INFO L85 PathProgramCache]: Analyzing trace with hash -636518239, now seen corresponding path program 1 times [2022-02-21 04:18:59,153 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:59,153 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371978987] [2022-02-21 04:18:59,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:59,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:59,196 INFO L290 TraceCheckUtils]: 0: Hoare triple {5978#true} assume !false; {5978#true} is VALID [2022-02-21 04:18:59,196 INFO L290 TraceCheckUtils]: 1: Hoare triple {5978#true} assume test_~splverifierCounter~0#1 < 4; {5978#true} is VALID [2022-02-21 04:18:59,197 INFO L290 TraceCheckUtils]: 2: Hoare triple {5978#true} test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; {5978#true} is VALID [2022-02-21 04:18:59,197 INFO L290 TraceCheckUtils]: 3: Hoare triple {5978#true} assume !(0 != test_~tmp~5#1); {5978#true} is VALID [2022-02-21 04:18:59,197 INFO L290 TraceCheckUtils]: 4: Hoare triple {5978#true} test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {5978#true} is VALID [2022-02-21 04:18:59,197 INFO L290 TraceCheckUtils]: 5: Hoare triple {5978#true} assume !(0 != test_~tmp___0~1#1); {5978#true} is VALID [2022-02-21 04:18:59,198 INFO L290 TraceCheckUtils]: 6: Hoare triple {5978#true} test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {5978#true} is VALID [2022-02-21 04:18:59,198 INFO L290 TraceCheckUtils]: 7: Hoare triple {5978#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {5978#true} is VALID [2022-02-21 04:18:59,198 INFO L290 TraceCheckUtils]: 8: Hoare triple {5978#true} assume !(0 != test_~tmp___1~0#1); {5978#true} is VALID [2022-02-21 04:18:59,199 INFO L290 TraceCheckUtils]: 9: Hoare triple {5978#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; {5978#true} is VALID [2022-02-21 04:18:59,200 INFO L290 TraceCheckUtils]: 10: Hoare triple {5978#true} __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; {5978#true} is VALID [2022-02-21 04:18:59,200 INFO L290 TraceCheckUtils]: 11: Hoare triple {5978#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {5978#true} is VALID [2022-02-21 04:18:59,200 INFO L290 TraceCheckUtils]: 12: Hoare triple {5978#true} assume !(0 != ~pumpRunning~0); {5978#true} is VALID [2022-02-21 04:18:59,200 INFO L290 TraceCheckUtils]: 13: Hoare triple {5978#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; {5978#true} is VALID [2022-02-21 04:18:59,200 INFO L290 TraceCheckUtils]: 14: Hoare triple {5978#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; {5978#true} is VALID [2022-02-21 04:18:59,201 INFO L290 TraceCheckUtils]: 15: Hoare triple {5978#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; {5978#true} is VALID [2022-02-21 04:18:59,201 INFO L290 TraceCheckUtils]: 16: Hoare triple {5978#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; {5978#true} is VALID [2022-02-21 04:18:59,201 INFO L290 TraceCheckUtils]: 17: Hoare triple {5978#true} isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; {5978#true} is VALID [2022-02-21 04:18:59,202 INFO L290 TraceCheckUtils]: 18: Hoare triple {5978#true} assume !(0 != isHighWaterLevel_~tmp~8#1);isHighWaterLevel_~tmp___0~2#1 := 1; {5980#(not (= |ULTIMATE.start_isHighWaterLevel_~tmp___0~2#1| 0))} is VALID [2022-02-21 04:18:59,202 INFO L290 TraceCheckUtils]: 19: Hoare triple {5980#(not (= |ULTIMATE.start_isHighWaterLevel_~tmp___0~2#1| 0))} isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; {5981#(not (= |ULTIMATE.start_isHighWaterLevel_#res#1| 0))} is VALID [2022-02-21 04:18:59,203 INFO L290 TraceCheckUtils]: 20: Hoare triple {5981#(not (= |ULTIMATE.start_isHighWaterLevel_#res#1| 0))} processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; {5982#(not (= |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0))} is VALID [2022-02-21 04:18:59,203 INFO L290 TraceCheckUtils]: 21: Hoare triple {5982#(not (= |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0))} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {5979#false} is VALID [2022-02-21 04:18:59,203 INFO L290 TraceCheckUtils]: 22: Hoare triple {5979#false} assume { :end_inline_processEnvironment__wrappee__base } true; {5979#false} is VALID [2022-02-21 04:18:59,203 INFO L290 TraceCheckUtils]: 23: Hoare triple {5979#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {5979#false} is VALID [2022-02-21 04:18:59,204 INFO L290 TraceCheckUtils]: 24: Hoare triple {5979#false} assume { :end_inline_processEnvironment } true; {5979#false} is VALID [2022-02-21 04:18:59,204 INFO L290 TraceCheckUtils]: 25: Hoare triple {5979#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {5979#false} is VALID [2022-02-21 04:18:59,204 INFO L290 TraceCheckUtils]: 26: Hoare triple {5979#false} __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; {5979#false} is VALID [2022-02-21 04:18:59,204 INFO L290 TraceCheckUtils]: 27: Hoare triple {5979#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); {5979#false} is VALID [2022-02-21 04:18:59,205 INFO L290 TraceCheckUtils]: 28: Hoare triple {5979#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {5979#false} is VALID [2022-02-21 04:18:59,205 INFO L290 TraceCheckUtils]: 29: Hoare triple {5979#false} assume { :end_inline_timeShift } true; {5979#false} is VALID [2022-02-21 04:18:59,205 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 04:18:59,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:59,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371978987] [2022-02-21 04:18:59,206 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371978987] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:59,206 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:59,206 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:59,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868203896] [2022-02-21 04:18:59,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:59,207 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:59,207 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:59,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:59,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:59,208 INFO L87 Difference]: Start difference. First operand 297 states and 376 transitions. cyclomatic complexity: 82 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:00,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:00,004 INFO L93 Difference]: Finished difference Result 966 states and 1222 transitions. [2022-02-21 04:19:00,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:19:00,005 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:00,025 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:19:00,026 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 966 states and 1222 transitions. [2022-02-21 04:19:00,066 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 712 [2022-02-21 04:19:00,112 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 966 states to 966 states and 1222 transitions. [2022-02-21 04:19:00,112 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 966 [2022-02-21 04:19:00,113 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 966 [2022-02-21 04:19:00,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 966 states and 1222 transitions. [2022-02-21 04:19:00,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:19:00,114 INFO L681 BuchiCegarLoop]: Abstraction has 966 states and 1222 transitions. [2022-02-21 04:19:00,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states and 1222 transitions. [2022-02-21 04:19:00,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 315. [2022-02-21 04:19:00,122 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:19:00,123 INFO L82 GeneralOperation]: Start isEquivalent. First operand 966 states and 1222 transitions. Second operand has 315 states, 315 states have (on average 1.2507936507936508) internal successors, (394), 314 states have internal predecessors, (394), 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 04:19:00,124 INFO L74 IsIncluded]: Start isIncluded. First operand 966 states and 1222 transitions. Second operand has 315 states, 315 states have (on average 1.2507936507936508) internal successors, (394), 314 states have internal predecessors, (394), 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 04:19:00,124 INFO L87 Difference]: Start difference. First operand 966 states and 1222 transitions. Second operand has 315 states, 315 states have (on average 1.2507936507936508) internal successors, (394), 314 states have internal predecessors, (394), 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 04:19:00,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:00,163 INFO L93 Difference]: Finished difference Result 966 states and 1222 transitions. [2022-02-21 04:19:00,163 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1222 transitions. [2022-02-21 04:19:00,164 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:00,165 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:00,166 INFO L74 IsIncluded]: Start isIncluded. First operand has 315 states, 315 states have (on average 1.2507936507936508) internal successors, (394), 314 states have internal predecessors, (394), 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 966 states and 1222 transitions. [2022-02-21 04:19:00,166 INFO L87 Difference]: Start difference. First operand has 315 states, 315 states have (on average 1.2507936507936508) internal successors, (394), 314 states have internal predecessors, (394), 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 966 states and 1222 transitions. [2022-02-21 04:19:00,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:00,204 INFO L93 Difference]: Finished difference Result 966 states and 1222 transitions. [2022-02-21 04:19:00,204 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1222 transitions. [2022-02-21 04:19:00,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:00,205 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:00,205 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:19:00,205 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:19:00,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 315 states have (on average 1.2507936507936508) internal successors, (394), 314 states have internal predecessors, (394), 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 04:19:00,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 394 transitions. [2022-02-21 04:19:00,212 INFO L704 BuchiCegarLoop]: Abstraction has 315 states and 394 transitions. [2022-02-21 04:19:00,212 INFO L587 BuchiCegarLoop]: Abstraction has 315 states and 394 transitions. [2022-02-21 04:19:00,212 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:19:00,212 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 315 states and 394 transitions. [2022-02-21 04:19:00,213 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2022-02-21 04:19:00,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:00,214 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:00,215 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:00,215 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:00,215 INFO L791 eck$LassoCheckResult]: Stem: 7140#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 7043#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 7044#L1008 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 7035#L1001 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 6995#L1016 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 6996#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 7031#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 7060#L539 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 7061#L702-2 [2022-02-21 04:19:00,216 INFO L793 eck$LassoCheckResult]: Loop: 7061#L702-2 assume !false; 7232#L703 assume test_~splverifierCounter~0#1 < 4; 7233#L704 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 7252#L712 assume !(0 != test_~tmp~5#1); 7250#L712-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 7075#L722 assume !(0 != test_~tmp___0~1#1); 7077#L722-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 7020#L732 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 6969#L982 assume { :end_inline_startSystem } true; 6970#L740-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 7026#L884 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 7054#L549 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 7053#L773 assume !(0 != ~pumpRunning~0); 7009#L773-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 7010#L831 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 7124#L805-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 7105#L670-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 7107#L675-1 isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; 7161#L933-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; 7159#L933-5 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 7157#L939-1 processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 7156#L809-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 7029#L797-2 assume { :end_inline_processEnvironment__wrappee__base } true; 7030#L805-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 7041#L831-1 assume { :end_inline_processEnvironment } true; 7042#L780-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 7240#L662 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 7238#L560 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 7235#L560-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 7234#L790 assume { :end_inline_timeShift } true; 7061#L702-2 [2022-02-21 04:19:00,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:00,216 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2022-02-21 04:19:00,216 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:00,216 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760427469] [2022-02-21 04:19:00,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:00,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:00,228 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:00,243 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:00,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:00,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1757617779, now seen corresponding path program 1 times [2022-02-21 04:19:00,244 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:00,244 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202172960] [2022-02-21 04:19:00,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:00,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:19:00,277 INFO L290 TraceCheckUtils]: 0: Hoare triple {9207#true} assume !false; {9207#true} is VALID [2022-02-21 04:19:00,277 INFO L290 TraceCheckUtils]: 1: Hoare triple {9207#true} assume test_~splverifierCounter~0#1 < 4; {9207#true} is VALID [2022-02-21 04:19:00,277 INFO L290 TraceCheckUtils]: 2: Hoare triple {9207#true} test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; {9207#true} is VALID [2022-02-21 04:19:00,277 INFO L290 TraceCheckUtils]: 3: Hoare triple {9207#true} assume !(0 != test_~tmp~5#1); {9207#true} is VALID [2022-02-21 04:19:00,278 INFO L290 TraceCheckUtils]: 4: Hoare triple {9207#true} test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {9207#true} is VALID [2022-02-21 04:19:00,278 INFO L290 TraceCheckUtils]: 5: Hoare triple {9207#true} assume !(0 != test_~tmp___0~1#1); {9207#true} is VALID [2022-02-21 04:19:00,278 INFO L290 TraceCheckUtils]: 6: Hoare triple {9207#true} test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {9207#true} is VALID [2022-02-21 04:19:00,278 INFO L290 TraceCheckUtils]: 7: Hoare triple {9207#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {9207#true} is VALID [2022-02-21 04:19:00,278 INFO L290 TraceCheckUtils]: 8: Hoare triple {9207#true} assume { :end_inline_startSystem } true; {9207#true} is VALID [2022-02-21 04:19:00,278 INFO L290 TraceCheckUtils]: 9: Hoare triple {9207#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; {9207#true} is VALID [2022-02-21 04:19:00,278 INFO L290 TraceCheckUtils]: 10: Hoare triple {9207#true} __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; {9207#true} is VALID [2022-02-21 04:19:00,279 INFO L290 TraceCheckUtils]: 11: Hoare triple {9207#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {9207#true} is VALID [2022-02-21 04:19:00,279 INFO L290 TraceCheckUtils]: 12: Hoare triple {9207#true} assume !(0 != ~pumpRunning~0); {9207#true} is VALID [2022-02-21 04:19:00,279 INFO L290 TraceCheckUtils]: 13: Hoare triple {9207#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; {9207#true} is VALID [2022-02-21 04:19:00,279 INFO L290 TraceCheckUtils]: 14: Hoare triple {9207#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; {9207#true} is VALID [2022-02-21 04:19:00,279 INFO L290 TraceCheckUtils]: 15: Hoare triple {9207#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; {9207#true} is VALID [2022-02-21 04:19:00,280 INFO L290 TraceCheckUtils]: 16: Hoare triple {9207#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; {9209#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:00,280 INFO L290 TraceCheckUtils]: 17: Hoare triple {9209#(not (= 2 ~waterLevel~0))} isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; {9209#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:00,281 INFO L290 TraceCheckUtils]: 18: Hoare triple {9209#(not (= 2 ~waterLevel~0))} assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; {9209#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:00,281 INFO L290 TraceCheckUtils]: 19: Hoare triple {9209#(not (= 2 ~waterLevel~0))} isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; {9209#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:00,281 INFO L290 TraceCheckUtils]: 20: Hoare triple {9209#(not (= 2 ~waterLevel~0))} processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; {9209#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:00,282 INFO L290 TraceCheckUtils]: 21: Hoare triple {9209#(not (= 2 ~waterLevel~0))} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {9209#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:00,282 INFO L290 TraceCheckUtils]: 22: Hoare triple {9209#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__base } true; {9209#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:00,282 INFO L290 TraceCheckUtils]: 23: Hoare triple {9209#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {9209#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:00,283 INFO L290 TraceCheckUtils]: 24: Hoare triple {9209#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment } true; {9209#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:00,283 INFO L290 TraceCheckUtils]: 25: Hoare triple {9209#(not (= 2 ~waterLevel~0))} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {9210#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} is VALID [2022-02-21 04:19:00,284 INFO L290 TraceCheckUtils]: 26: Hoare triple {9210#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; {9211#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~4#1|))} is VALID [2022-02-21 04:19:00,284 INFO L290 TraceCheckUtils]: 27: Hoare triple {9211#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~4#1|))} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); {9208#false} is VALID [2022-02-21 04:19:00,284 INFO L290 TraceCheckUtils]: 28: Hoare triple {9208#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {9208#false} is VALID [2022-02-21 04:19:00,284 INFO L290 TraceCheckUtils]: 29: Hoare triple {9208#false} assume { :end_inline_timeShift } true; {9208#false} is VALID [2022-02-21 04:19:00,285 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 04:19:00,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:19:00,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202172960] [2022-02-21 04:19:00,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202172960] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:19:00,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:19:00,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:19:00,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922189062] [2022-02-21 04:19:00,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:19:00,290 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:19:00,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:19:00,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:19:00,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:19:00,291 INFO L87 Difference]: Start difference. First operand 315 states and 394 transitions. cyclomatic complexity: 82 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:01,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:01,384 INFO L93 Difference]: Finished difference Result 1255 states and 1543 transitions. [2022-02-21 04:19:01,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:19:01,384 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:01,403 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:19:01,406 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1255 states and 1543 transitions. [2022-02-21 04:19:01,466 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 879 [2022-02-21 04:19:01,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1255 states to 1255 states and 1543 transitions. [2022-02-21 04:19:01,526 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1255 [2022-02-21 04:19:01,526 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1255 [2022-02-21 04:19:01,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1255 states and 1543 transitions. [2022-02-21 04:19:01,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:19:01,528 INFO L681 BuchiCegarLoop]: Abstraction has 1255 states and 1543 transitions. [2022-02-21 04:19:01,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states and 1543 transitions. [2022-02-21 04:19:01,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 577. [2022-02-21 04:19:01,537 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:19:01,539 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1255 states and 1543 transitions. Second operand has 577 states, 577 states have (on average 1.2322357019064125) internal successors, (711), 576 states have internal predecessors, (711), 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 04:19:01,540 INFO L74 IsIncluded]: Start isIncluded. First operand 1255 states and 1543 transitions. Second operand has 577 states, 577 states have (on average 1.2322357019064125) internal successors, (711), 576 states have internal predecessors, (711), 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 04:19:01,541 INFO L87 Difference]: Start difference. First operand 1255 states and 1543 transitions. Second operand has 577 states, 577 states have (on average 1.2322357019064125) internal successors, (711), 576 states have internal predecessors, (711), 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 04:19:01,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:01,598 INFO L93 Difference]: Finished difference Result 1255 states and 1543 transitions. [2022-02-21 04:19:01,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1543 transitions. [2022-02-21 04:19:01,601 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:01,601 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:01,603 INFO L74 IsIncluded]: Start isIncluded. First operand has 577 states, 577 states have (on average 1.2322357019064125) internal successors, (711), 576 states have internal predecessors, (711), 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 1255 states and 1543 transitions. [2022-02-21 04:19:01,604 INFO L87 Difference]: Start difference. First operand has 577 states, 577 states have (on average 1.2322357019064125) internal successors, (711), 576 states have internal predecessors, (711), 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 1255 states and 1543 transitions. [2022-02-21 04:19:01,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:01,663 INFO L93 Difference]: Finished difference Result 1255 states and 1543 transitions. [2022-02-21 04:19:01,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1543 transitions. [2022-02-21 04:19:01,664 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:01,665 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:01,665 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:19:01,665 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:19:01,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 577 states have (on average 1.2322357019064125) internal successors, (711), 576 states have internal predecessors, (711), 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 04:19:01,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 711 transitions. [2022-02-21 04:19:01,681 INFO L704 BuchiCegarLoop]: Abstraction has 577 states and 711 transitions. [2022-02-21 04:19:01,681 INFO L587 BuchiCegarLoop]: Abstraction has 577 states and 711 transitions. [2022-02-21 04:19:01,681 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2022-02-21 04:19:01,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 577 states and 711 transitions. [2022-02-21 04:19:01,684 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 416 [2022-02-21 04:19:01,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:01,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:01,685 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:01,685 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:01,685 INFO L791 eck$LassoCheckResult]: Stem: 10696#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 10571#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 10572#L1008 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 10562#L1001 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 10518#L1016 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 10519#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 10558#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 10591#L539 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 10592#L702-2 [2022-02-21 04:19:01,686 INFO L793 eck$LassoCheckResult]: Loop: 10592#L702-2 assume !false; 10993#L703 assume test_~splverifierCounter~0#1 < 4; 10992#L704 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 10990#L712 assume !(0 != test_~tmp~5#1); 10988#L712-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 10986#L722 assume !(0 != test_~tmp___0~1#1); 10984#L722-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 10983#L732 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 10948#L982 assume { :end_inline_startSystem } true; 10982#L740-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 11025#L884 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 11024#L549 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 11023#L773 assume !(0 != ~pumpRunning~0); 10921#L773-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 10667#L831 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 10668#L805-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 10643#L670-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 10645#L675-1 isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; 10846#L933-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; 10844#L933-5 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 10842#L939-1 processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 10840#L809-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 10556#L797-2 assume { :end_inline_processEnvironment__wrappee__base } true; 10557#L805-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 10573#L831-1 assume { :end_inline_processEnvironment } true; 11002#L780-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 11001#L662 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 11000#L560 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 10999#L884-1 __utac_acc__Specification5_spec__3_#t~ret30#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret30#1;havoc __utac_acc__Specification5_spec__3_#t~ret30#1; 10998#L564 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 10996#L560-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 10995#L790 assume { :end_inline_timeShift } true; 10592#L702-2 [2022-02-21 04:19:01,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:01,686 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 6 times [2022-02-21 04:19:01,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:01,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206069576] [2022-02-21 04:19:01,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:01,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:01,702 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:01,715 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:01,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:01,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1129442222, now seen corresponding path program 1 times [2022-02-21 04:19:01,716 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:01,716 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227099505] [2022-02-21 04:19:01,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:01,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:01,731 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:01,743 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:01,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:01,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1725999767, now seen corresponding path program 1 times [2022-02-21 04:19:01,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:01,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743216406] [2022-02-21 04:19:01,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:01,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:01,761 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:01,775 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:04,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:19:04 BoogieIcfgContainer [2022-02-21 04:19:04,769 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:19:04,769 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:19:04,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:19:04,770 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:19:04,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:55" (3/4) ... [2022-02-21 04:19:04,772 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:19:04,814 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:19:04,815 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:19:04,816 INFO L158 Benchmark]: Toolchain (without parser) took 10581.02ms. Allocated memory was 98.6MB in the beginning and 180.4MB in the end (delta: 81.8MB). Free memory was 67.2MB in the beginning and 93.4MB in the end (delta: -26.1MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. [2022-02-21 04:19:04,816 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 98.6MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:19:04,816 INFO L158 Benchmark]: CACSL2BoogieTranslator took 495.16ms. Allocated memory is still 98.6MB. Free memory was 67.0MB in the beginning and 62.1MB in the end (delta: 4.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-21 04:19:04,817 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.37ms. Allocated memory is still 98.6MB. Free memory was 62.1MB in the beginning and 57.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:19:04,817 INFO L158 Benchmark]: Boogie Preprocessor took 72.42ms. Allocated memory is still 98.6MB. Free memory was 57.9MB in the beginning and 55.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:19:04,818 INFO L158 Benchmark]: RCFGBuilder took 698.32ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 55.2MB in the beginning and 81.0MB in the end (delta: -25.8MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2022-02-21 04:19:04,818 INFO L158 Benchmark]: BuchiAutomizer took 9173.94ms. Allocated memory was 123.7MB in the beginning and 180.4MB in the end (delta: 56.6MB). Free memory was 81.0MB in the beginning and 96.4MB in the end (delta: -15.4MB). Peak memory consumption was 91.1MB. Max. memory is 16.1GB. [2022-02-21 04:19:04,818 INFO L158 Benchmark]: Witness Printer took 45.35ms. Allocated memory is still 180.4MB. Free memory was 96.4MB in the beginning and 93.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:19:04,820 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 0.25ms. Allocated memory is still 98.6MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 495.16ms. Allocated memory is still 98.6MB. Free memory was 67.0MB in the beginning and 62.1MB in the end (delta: 4.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.37ms. Allocated memory is still 98.6MB. Free memory was 62.1MB in the beginning and 57.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.42ms. Allocated memory is still 98.6MB. Free memory was 57.9MB in the beginning and 55.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 698.32ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 55.2MB in the beginning and 81.0MB in the end (delta: -25.8MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 9173.94ms. Allocated memory was 123.7MB in the beginning and 180.4MB in the end (delta: 56.6MB). Free memory was 81.0MB in the beginning and 96.4MB in the end (delta: -15.4MB). Peak memory consumption was 91.1MB. Max. memory is 16.1GB. * Witness Printer took 45.35ms. Allocated memory is still 180.4MB. Free memory was 96.4MB in the beginning and 93.4MB 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 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 577 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.0s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 4.0s. Construction of modules took 0.3s. Büchi inclusion checks took 3.6s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 2159 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.3s Buchi closure took 0.0s. Biggest automaton had 577 states and ocurred in iteration 5. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3648 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3648 mSDsluCounter, 5301 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3756 mSDsCounter, 115 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 386 IncrementalHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 115 mSolverCounterUnsat, 1545 mSDtfsCounter, 386 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 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: 702]: 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, retValue_acc=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@761352f8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37a7c67d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18c1586e=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@81a89ad=0, retValue_acc=1, tmp=0, methaneLevelCritical=0, retValue_acc=0, retValue_acc=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8f6dc21=29, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@182e1369=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44e2c490=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26d578c4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d9db2ca=0, tmp=1, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1da8467d=0, \result=0, tmp=1, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, tmp___0=0, head=0, \result=1, tmp___1=0, retValue_acc=1, NULL=0, waterLevel=1, systemActive=1, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c4ebfdf=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 702]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L533] int switchedOnBeforeTS ; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L763] int pumpRunning = 0; [L764] int systemActive = 1; [L499] int retValue_acc ; [L500] int tmp ; [L504] FCALL select_helpers() [L505] FCALL select_features() [L506] CALL, EXPR valid_product() [L1012] int retValue_acc ; [L1015] retValue_acc = 1 [L1016] return (retValue_acc); [L506] RET, EXPR valid_product() [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L510] FCALL setup() [L511] CALL runTest() [L489] CALL __utac_acc__Specification5_spec__1() [L538] switchedOnBeforeTS = 0 [L489] RET __utac_acc__Specification5_spec__1() [L490] CALL test() [L693] int splverifierCounter ; [L694] int tmp ; [L695] int tmp___0 ; [L696] int tmp___1 ; [L697] int tmp___2 ; [L700] splverifierCounter = 0 Loop: [L702] COND TRUE 1 [L704] COND TRUE splverifierCounter < 4 [L710] tmp = __VERIFIER_nondet_int() [L712] COND FALSE !(\read(tmp)) [L720] tmp___0 = __VERIFIER_nondet_int() [L722] COND FALSE !(\read(tmp___0)) [L730] tmp___2 = __VERIFIER_nondet_int() [L732] COND TRUE \read(tmp___2) [L734] CALL startSystem() [L981] systemActive = 1 [L734] RET startSystem() [L749] CALL timeShift() [L771] CALL __utac_acc__Specification5_spec__2() [L547] CALL, EXPR isPumpRunning() [L880] int retValue_acc ; [L883] retValue_acc = pumpRunning [L884] return (retValue_acc); [L547] RET, EXPR isPumpRunning() [L547] switchedOnBeforeTS = isPumpRunning() [L771] RET __utac_acc__Specification5_spec__2() [L773] COND FALSE !(\read(pumpRunning)) [L780] COND TRUE \read(systemActive) [L782] CALL processEnvironment() [L828] int tmp ; [L831] COND FALSE !(\read(pumpRunning)) [L846] CALL processEnvironment__wrappee__highWaterSensor() [L802] int tmp ; [L805] COND TRUE ! pumpRunning [L807] CALL, EXPR isHighWaterLevel() [L925] int retValue_acc ; [L926] int tmp ; [L927] int tmp___0 ; [L931] CALL, EXPR isHighWaterSensorDry() [L667] int retValue_acc ; [L670] COND TRUE waterLevel < 2 [L671] retValue_acc = 1 [L672] return (retValue_acc); [L931] RET, EXPR isHighWaterSensorDry() [L931] tmp = isHighWaterSensorDry() [L933] COND TRUE \read(tmp) [L934] tmp___0 = 0 [L938] retValue_acc = tmp___0 [L939] return (retValue_acc); [L807] RET, EXPR isHighWaterLevel() [L807] tmp = isHighWaterLevel() [L809] COND FALSE !(\read(tmp)) [L815] FCALL processEnvironment__wrappee__base() [L846] RET processEnvironment__wrappee__highWaterSensor() [L782] RET processEnvironment() [L788] CALL __utac_acc__Specification5_spec__3() [L553] int tmp ; [L554] int tmp___0 ; [L558] CALL, EXPR getWaterLevel() [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] return (retValue_acc); [L558] RET, EXPR getWaterLevel() [L558] tmp = getWaterLevel() [L560] COND TRUE tmp != 2 [L562] CALL, EXPR isPumpRunning() [L880] int retValue_acc ; [L883] retValue_acc = pumpRunning [L884] return (retValue_acc); [L562] RET, EXPR isPumpRunning() [L562] tmp___0 = isPumpRunning() [L564] COND FALSE !(\read(tmp___0)) [L788] RET __utac_acc__Specification5_spec__3() [L749] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:19:04,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)