./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product62.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_spec3_product62.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 4d13ffd2557e7d7902d8a5eac414f9fb7393252d85c14855e86000741be6847f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:21,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:21,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:21,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:21,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:21,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:21,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:21,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:21,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:21,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:21,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:21,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:21,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:21,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:21,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:21,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:21,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:21,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:21,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:21,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:21,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:21,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:21,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:21,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:21,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:21,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:21,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:21,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:21,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:21,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:21,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:21,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:21,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:21,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:22,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:22,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:22,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:22,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:22,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:22,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:22,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:22,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:22,028 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:22,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:22,029 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:22,030 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:22,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:22,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:22,032 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:22,032 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:22,033 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:22,033 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:22,033 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:22,034 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:22,034 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:22,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:22,034 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:22,034 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:22,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:22,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:22,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:22,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:22,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:22,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:22,035 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:22,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:22,036 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:22,036 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:22,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:22,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:22,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:22,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:22,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:22,038 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:22,038 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d13ffd2557e7d7902d8a5eac414f9fb7393252d85c14855e86000741be6847f [2022-02-21 04:17:22,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:22,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:22,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:22,276 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:22,277 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:22,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c [2022-02-21 04:17:22,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38525d17b/e55fb82ae9b1482bbce7e95a846b6de5/FLAG430e40eb8 [2022-02-21 04:17:22,755 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:22,755 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c [2022-02-21 04:17:22,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38525d17b/e55fb82ae9b1482bbce7e95a846b6de5/FLAG430e40eb8 [2022-02-21 04:17:22,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38525d17b/e55fb82ae9b1482bbce7e95a846b6de5 [2022-02-21 04:17:22,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:22,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:22,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:22,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:22,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:22,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:22" (1/1) ... [2022-02-21 04:17:22,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b97769b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:22, skipping insertion in model container [2022-02-21 04:17:22,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:22" (1/1) ... [2022-02-21 04:17:22,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:22,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:23,010 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_spec3_product62.cil.c[1605,1618] [2022-02-21 04:17:23,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:23,194 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:23,209 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_spec3_product62.cil.c[1605,1618] [2022-02-21 04:17:23,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:23,323 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:23,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:23 WrapperNode [2022-02-21 04:17:23,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:23,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:23,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:23,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:23,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:23" (1/1) ... [2022-02-21 04:17:23,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:23" (1/1) ... [2022-02-21 04:17:23,424 INFO L137 Inliner]: procedures = 58, calls = 162, calls flagged for inlining = 59, calls inlined = 177, statements flattened = 1289 [2022-02-21 04:17:23,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:23,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:23,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:23,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:23,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:23" (1/1) ... [2022-02-21 04:17:23,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:23" (1/1) ... [2022-02-21 04:17:23,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:23" (1/1) ... [2022-02-21 04:17:23,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:23" (1/1) ... [2022-02-21 04:17:23,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:23" (1/1) ... [2022-02-21 04:17:23,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:23" (1/1) ... [2022-02-21 04:17:23,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:23" (1/1) ... [2022-02-21 04:17:23,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:23,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:23,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:23,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:23,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:23" (1/1) ... [2022-02-21 04:17:23,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:23,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:23,553 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 04:17:23,603 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 04:17:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:23,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:23,693 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:23,694 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:24,372 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:24,385 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:24,385 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:24,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:24 BoogieIcfgContainer [2022-02-21 04:17:24,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:24,388 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:24,388 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:24,390 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:24,391 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:24,391 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:22" (1/3) ... [2022-02-21 04:17:24,391 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2570feed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:24, skipping insertion in model container [2022-02-21 04:17:24,391 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:24,392 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:23" (2/3) ... [2022-02-21 04:17:24,392 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2570feed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:24, skipping insertion in model container [2022-02-21 04:17:24,392 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:24,392 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:24" (3/3) ... [2022-02-21 04:17:24,393 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product62.cil.c [2022-02-21 04:17:24,430 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:24,430 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:24,430 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:24,431 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:24,431 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:24,431 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:24,431 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:24,431 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:24,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 325 states, 324 states have (on average 1.3549382716049383) internal successors, (439), 324 states have internal predecessors, (439), 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 04:17:24,513 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 213 [2022-02-21 04:17:24,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:24,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:24,518 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:24,518 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:24,518 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:24,519 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 325 states, 324 states have (on average 1.3549382716049383) internal successors, (439), 324 states have internal predecessors, (439), 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 04:17:24,537 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 213 [2022-02-21 04:17:24,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:24,539 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:24,539 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:24,539 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:24,543 INFO L791 eck$LassoCheckResult]: Stem: 313#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 208#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 212#L596true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 175#L589true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 215#L604true main_#t~ret55#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1; 325#L1012true assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 199#L989true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 154#L873-2true [2022-02-21 04:17:24,544 INFO L793 eck$LassoCheckResult]: Loop: 154#L873-2true assume !false; 258#L874true assume test_~splverifierCounter~0#1 < 4; 14#L875true test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 203#L883true assume !(0 != test_~tmp~10#1); 185#L883-2true test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 91#L893true assume !(0 != test_~tmp___0~3#1); 280#L893-2true test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 290#L903true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet54#1;havoc test_#t~nondet54#1; 229#L911true assume 0 != test_~tmp___1~1#1; 15#L911-2true assume { :begin_inline_timeShift } true; 66#L621true assume !(0 != ~pumpRunning~0); 189#L621-2true assume !(0 != ~systemActive~0); 271#L628-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 19#L511-5true __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 78#L71true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 99#L77-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 292#L638true assume { :end_inline_timeShift } true; 154#L873-2true [2022-02-21 04:17:24,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:24,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:24,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:24,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098426125] [2022-02-21 04:17:24,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:24,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:24,692 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:24,736 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:24,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:24,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1723998252, now seen corresponding path program 1 times [2022-02-21 04:17:24,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:24,739 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146961278] [2022-02-21 04:17:24,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:24,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:24,763 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:24,772 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:24,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:24,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1639287440, now seen corresponding path program 1 times [2022-02-21 04:17:24,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:24,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778298232] [2022-02-21 04:17:24,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:24,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:24,916 INFO L290 TraceCheckUtils]: 0: Hoare triple {333#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; {335#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:24,917 INFO L290 TraceCheckUtils]: 1: Hoare triple {335#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; {335#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:24,917 INFO L290 TraceCheckUtils]: 2: Hoare triple {335#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {335#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:24,917 INFO L290 TraceCheckUtils]: 3: Hoare triple {335#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; {336#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:17:24,919 INFO L290 TraceCheckUtils]: 4: Hoare triple {336#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret55#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1; {337#(= |ULTIMATE.start_main_~tmp~11#1| ~systemActive~0)} is VALID [2022-02-21 04:17:24,920 INFO L290 TraceCheckUtils]: 5: Hoare triple {337#(= |ULTIMATE.start_main_~tmp~11#1| ~systemActive~0)} assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; {338#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:24,920 INFO L290 TraceCheckUtils]: 6: Hoare triple {338#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {338#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:24,921 INFO L290 TraceCheckUtils]: 7: Hoare triple {338#(not (= 0 ~systemActive~0))} assume !false; {338#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:24,921 INFO L290 TraceCheckUtils]: 8: Hoare triple {338#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {338#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:24,922 INFO L290 TraceCheckUtils]: 9: Hoare triple {338#(not (= 0 ~systemActive~0))} test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {338#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:24,922 INFO L290 TraceCheckUtils]: 10: Hoare triple {338#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~10#1); {338#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:24,923 INFO L290 TraceCheckUtils]: 11: Hoare triple {338#(not (= 0 ~systemActive~0))} test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; {338#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:24,923 INFO L290 TraceCheckUtils]: 12: Hoare triple {338#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~3#1); {338#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:24,924 INFO L290 TraceCheckUtils]: 13: Hoare triple {338#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; {338#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:24,924 INFO L290 TraceCheckUtils]: 14: Hoare triple {338#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet54#1;havoc test_#t~nondet54#1; {338#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:24,925 INFO L290 TraceCheckUtils]: 15: Hoare triple {338#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___1~1#1; {338#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:24,925 INFO L290 TraceCheckUtils]: 16: Hoare triple {338#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {338#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:24,925 INFO L290 TraceCheckUtils]: 17: Hoare triple {338#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {338#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:24,926 INFO L290 TraceCheckUtils]: 18: Hoare triple {338#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {334#false} is VALID [2022-02-21 04:17:24,926 INFO L290 TraceCheckUtils]: 19: Hoare triple {334#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {334#false} is VALID [2022-02-21 04:17:24,927 INFO L290 TraceCheckUtils]: 20: Hoare triple {334#false} __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; {334#false} is VALID [2022-02-21 04:17:24,927 INFO L290 TraceCheckUtils]: 21: Hoare triple {334#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; {334#false} is VALID [2022-02-21 04:17:24,928 INFO L290 TraceCheckUtils]: 22: Hoare triple {334#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {334#false} is VALID [2022-02-21 04:17:24,928 INFO L290 TraceCheckUtils]: 23: Hoare triple {334#false} assume { :end_inline_timeShift } true; {334#false} is VALID [2022-02-21 04:17:24,929 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 04:17:24,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:24,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778298232] [2022-02-21 04:17:24,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778298232] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:24,931 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:24,931 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:24,931 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914396624] [2022-02-21 04:17:24,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:25,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:25,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:17:25,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:17:25,091 INFO L87 Difference]: Start difference. First operand has 325 states, 324 states have (on average 1.3549382716049383) internal successors, (439), 324 states have internal predecessors, (439), 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 4.0) internal successors, (24), 5 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 04:17:25,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:25,867 INFO L93 Difference]: Finished difference Result 322 states and 425 transitions. [2022-02-21 04:17:25,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:25,868 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 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 04:17:25,893 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 04:17:25,898 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 322 states and 425 transitions. [2022-02-21 04:17:25,922 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 209 [2022-02-21 04:17:25,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 322 states to 312 states and 415 transitions. [2022-02-21 04:17:25,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 312 [2022-02-21 04:17:25,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 312 [2022-02-21 04:17:25,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 312 states and 415 transitions. [2022-02-21 04:17:25,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:25,951 INFO L681 BuchiCegarLoop]: Abstraction has 312 states and 415 transitions. [2022-02-21 04:17:25,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states and 415 transitions. [2022-02-21 04:17:25,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2022-02-21 04:17:25,989 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:25,992 INFO L82 GeneralOperation]: Start isEquivalent. First operand 312 states and 415 transitions. Second operand has 312 states, 312 states have (on average 1.330128205128205) internal successors, (415), 311 states have internal predecessors, (415), 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 04:17:25,993 INFO L74 IsIncluded]: Start isIncluded. First operand 312 states and 415 transitions. Second operand has 312 states, 312 states have (on average 1.330128205128205) internal successors, (415), 311 states have internal predecessors, (415), 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 04:17:25,995 INFO L87 Difference]: Start difference. First operand 312 states and 415 transitions. Second operand has 312 states, 312 states have (on average 1.330128205128205) internal successors, (415), 311 states have internal predecessors, (415), 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 04:17:26,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:26,007 INFO L93 Difference]: Finished difference Result 312 states and 415 transitions. [2022-02-21 04:17:26,007 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 415 transitions. [2022-02-21 04:17:26,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:26,009 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:26,010 INFO L74 IsIncluded]: Start isIncluded. First operand has 312 states, 312 states have (on average 1.330128205128205) internal successors, (415), 311 states have internal predecessors, (415), 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 312 states and 415 transitions. [2022-02-21 04:17:26,011 INFO L87 Difference]: Start difference. First operand has 312 states, 312 states have (on average 1.330128205128205) internal successors, (415), 311 states have internal predecessors, (415), 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 312 states and 415 transitions. [2022-02-21 04:17:26,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:26,021 INFO L93 Difference]: Finished difference Result 312 states and 415 transitions. [2022-02-21 04:17:26,021 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 415 transitions. [2022-02-21 04:17:26,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:26,022 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:26,022 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:26,022 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:26,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 312 states have (on average 1.330128205128205) internal successors, (415), 311 states have internal predecessors, (415), 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 04:17:26,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 415 transitions. [2022-02-21 04:17:26,033 INFO L704 BuchiCegarLoop]: Abstraction has 312 states and 415 transitions. [2022-02-21 04:17:26,033 INFO L587 BuchiCegarLoop]: Abstraction has 312 states and 415 transitions. [2022-02-21 04:17:26,033 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:26,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 312 states and 415 transitions. [2022-02-21 04:17:26,035 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 209 [2022-02-21 04:17:26,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:26,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:26,039 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:26,040 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:26,040 INFO L791 eck$LassoCheckResult]: Stem: 975#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 936#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 937#L596 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 916#L589 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 917#L604 main_#t~ret55#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1; 945#L1012 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 932#L989 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 895#L873-2 [2022-02-21 04:17:26,040 INFO L793 eck$LassoCheckResult]: Loop: 895#L873-2 assume !false; 896#L874 assume test_~splverifierCounter~0#1 < 4; 689#L875 test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 690#L883 assume !(0 != test_~tmp~10#1); 875#L883-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 824#L893 assume !(0 != test_~tmp___0~3#1); 790#L893-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 971#L903 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 961#L858 assume { :end_inline_startSystem } true; 691#L911-2 assume { :begin_inline_timeShift } true; 692#L621 assume !(0 != ~pumpRunning~0); 788#L621-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 927#L705 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret40#1, isMethaneAlarm_~retValue_acc~9#1;havoc isMethaneAlarm_~retValue_acc~9#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 959#L511 isMethaneAlarm_#t~ret40#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~9#1 := isMethaneAlarm_#t~ret40#1;havoc isMethaneAlarm_#t~ret40#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~9#1; 681#L766 processEnvironment_#t~ret38#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; 682#L709 assume 0 != processEnvironment_~tmp~6#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 814#L756 assume { :end_inline_deactivatePump } true; 717#L705-1 assume { :end_inline_processEnvironment } true; 785#L628-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 702#L511-5 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 703#L71 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 807#L77-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 835#L638 assume { :end_inline_timeShift } true; 895#L873-2 [2022-02-21 04:17:26,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:26,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:26,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:26,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707346644] [2022-02-21 04:17:26,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:26,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:26,076 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:26,089 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:26,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:26,089 INFO L85 PathProgramCache]: Analyzing trace with hash 739616476, now seen corresponding path program 1 times [2022-02-21 04:17:26,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:26,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254713203] [2022-02-21 04:17:26,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:26,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:26,104 INFO L290 TraceCheckUtils]: 0: Hoare triple {1606#true} assume !false; {1606#true} is VALID [2022-02-21 04:17:26,105 INFO L290 TraceCheckUtils]: 1: Hoare triple {1606#true} assume test_~splverifierCounter~0#1 < 4; {1606#true} is VALID [2022-02-21 04:17:26,105 INFO L290 TraceCheckUtils]: 2: Hoare triple {1606#true} test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {1606#true} is VALID [2022-02-21 04:17:26,105 INFO L290 TraceCheckUtils]: 3: Hoare triple {1606#true} assume !(0 != test_~tmp~10#1); {1606#true} is VALID [2022-02-21 04:17:26,106 INFO L290 TraceCheckUtils]: 4: Hoare triple {1606#true} test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; {1606#true} is VALID [2022-02-21 04:17:26,106 INFO L290 TraceCheckUtils]: 5: Hoare triple {1606#true} assume !(0 != test_~tmp___0~3#1); {1606#true} is VALID [2022-02-21 04:17:26,106 INFO L290 TraceCheckUtils]: 6: Hoare triple {1606#true} test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; {1606#true} is VALID [2022-02-21 04:17:26,106 INFO L290 TraceCheckUtils]: 7: Hoare triple {1606#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {1606#true} is VALID [2022-02-21 04:17:26,106 INFO L290 TraceCheckUtils]: 8: Hoare triple {1606#true} assume { :end_inline_startSystem } true; {1606#true} is VALID [2022-02-21 04:17:26,106 INFO L290 TraceCheckUtils]: 9: Hoare triple {1606#true} assume { :begin_inline_timeShift } true; {1606#true} is VALID [2022-02-21 04:17:26,107 INFO L290 TraceCheckUtils]: 10: Hoare triple {1606#true} assume !(0 != ~pumpRunning~0); {1608#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:26,107 INFO L290 TraceCheckUtils]: 11: Hoare triple {1608#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {1608#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:26,108 INFO L290 TraceCheckUtils]: 12: Hoare triple {1608#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret40#1, isMethaneAlarm_~retValue_acc~9#1;havoc isMethaneAlarm_~retValue_acc~9#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {1607#false} is VALID [2022-02-21 04:17:26,108 INFO L290 TraceCheckUtils]: 13: Hoare triple {1607#false} isMethaneAlarm_#t~ret40#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~9#1 := isMethaneAlarm_#t~ret40#1;havoc isMethaneAlarm_#t~ret40#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~9#1; {1607#false} is VALID [2022-02-21 04:17:26,108 INFO L290 TraceCheckUtils]: 14: Hoare triple {1607#false} processEnvironment_#t~ret38#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; {1607#false} is VALID [2022-02-21 04:17:26,108 INFO L290 TraceCheckUtils]: 15: Hoare triple {1607#false} assume 0 != processEnvironment_~tmp~6#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {1607#false} is VALID [2022-02-21 04:17:26,108 INFO L290 TraceCheckUtils]: 16: Hoare triple {1607#false} assume { :end_inline_deactivatePump } true; {1607#false} is VALID [2022-02-21 04:17:26,109 INFO L290 TraceCheckUtils]: 17: Hoare triple {1607#false} assume { :end_inline_processEnvironment } true; {1607#false} is VALID [2022-02-21 04:17:26,109 INFO L290 TraceCheckUtils]: 18: Hoare triple {1607#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {1607#false} is VALID [2022-02-21 04:17:26,109 INFO L290 TraceCheckUtils]: 19: Hoare triple {1607#false} __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; {1607#false} is VALID [2022-02-21 04:17:26,109 INFO L290 TraceCheckUtils]: 20: Hoare triple {1607#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; {1607#false} is VALID [2022-02-21 04:17:26,109 INFO L290 TraceCheckUtils]: 21: Hoare triple {1607#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {1607#false} is VALID [2022-02-21 04:17:26,110 INFO L290 TraceCheckUtils]: 22: Hoare triple {1607#false} assume { :end_inline_timeShift } true; {1607#false} is VALID [2022-02-21 04:17:26,110 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 04:17:26,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:26,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254713203] [2022-02-21 04:17:26,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254713203] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:26,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:26,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:26,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711032957] [2022-02-21 04:17:26,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:26,111 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:26,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:26,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:26,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:26,112 INFO L87 Difference]: Start difference. First operand 312 states and 415 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:26,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:26,382 INFO L93 Difference]: Finished difference Result 326 states and 412 transitions. [2022-02-21 04:17:26,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:26,382 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:26,396 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:26,397 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 326 states and 412 transitions. [2022-02-21 04:17:26,403 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 224 [2022-02-21 04:17:26,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 326 states to 326 states and 412 transitions. [2022-02-21 04:17:26,410 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 326 [2022-02-21 04:17:26,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 326 [2022-02-21 04:17:26,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 326 states and 412 transitions. [2022-02-21 04:17:26,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:26,411 INFO L681 BuchiCegarLoop]: Abstraction has 326 states and 412 transitions. [2022-02-21 04:17:26,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states and 412 transitions. [2022-02-21 04:17:26,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2022-02-21 04:17:26,417 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:26,418 INFO L82 GeneralOperation]: Start isEquivalent. First operand 326 states and 412 transitions. Second operand has 326 states, 326 states have (on average 1.2638036809815951) internal successors, (412), 325 states have internal predecessors, (412), 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 04:17:26,419 INFO L74 IsIncluded]: Start isIncluded. First operand 326 states and 412 transitions. Second operand has 326 states, 326 states have (on average 1.2638036809815951) internal successors, (412), 325 states have internal predecessors, (412), 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 04:17:26,419 INFO L87 Difference]: Start difference. First operand 326 states and 412 transitions. Second operand has 326 states, 326 states have (on average 1.2638036809815951) internal successors, (412), 325 states have internal predecessors, (412), 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 04:17:26,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:26,444 INFO L93 Difference]: Finished difference Result 326 states and 412 transitions. [2022-02-21 04:17:26,444 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 412 transitions. [2022-02-21 04:17:26,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:26,445 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:26,446 INFO L74 IsIncluded]: Start isIncluded. First operand has 326 states, 326 states have (on average 1.2638036809815951) internal successors, (412), 325 states have internal predecessors, (412), 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 326 states and 412 transitions. [2022-02-21 04:17:26,446 INFO L87 Difference]: Start difference. First operand has 326 states, 326 states have (on average 1.2638036809815951) internal successors, (412), 325 states have internal predecessors, (412), 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 326 states and 412 transitions. [2022-02-21 04:17:26,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:26,453 INFO L93 Difference]: Finished difference Result 326 states and 412 transitions. [2022-02-21 04:17:26,453 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 412 transitions. [2022-02-21 04:17:26,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:26,453 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:26,453 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:26,453 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:26,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 326 states have (on average 1.2638036809815951) internal successors, (412), 325 states have internal predecessors, (412), 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 04:17:26,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 412 transitions. [2022-02-21 04:17:26,461 INFO L704 BuchiCegarLoop]: Abstraction has 326 states and 412 transitions. [2022-02-21 04:17:26,461 INFO L587 BuchiCegarLoop]: Abstraction has 326 states and 412 transitions. [2022-02-21 04:17:26,461 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:26,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 326 states and 412 transitions. [2022-02-21 04:17:26,463 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 224 [2022-02-21 04:17:26,463 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:26,463 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:26,463 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:26,463 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 04:17:26,464 INFO L791 eck$LassoCheckResult]: Stem: 2199#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 2163#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 2164#L596 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2142#L589 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 2143#L604 main_#t~ret55#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1; 2170#L1012 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 2157#L989 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2158#L873-2 [2022-02-21 04:17:26,467 INFO L793 eck$LassoCheckResult]: Loop: 2158#L873-2 assume !false; 2189#L874 assume test_~splverifierCounter~0#1 < 4; 1954#L875 test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1955#L883 assume !(0 != test_~tmp~10#1); 2113#L883-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 2067#L893 assume !(0 != test_~tmp___0~3#1); 2040#L893-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 2194#L903 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet54#1;havoc test_#t~nondet54#1; 2179#L911 assume 0 != test_~tmp___1~1#1; 1956#L911-2 assume { :begin_inline_timeShift } true; 1957#L621 assume !(0 != ~pumpRunning~0); 2036#L621-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 2150#L705 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 2165#L679-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 2166#L653-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 2192#L551-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 2171#L556-3 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 2140#L824-9 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2071#L824-11 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 2072#L830-3 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 2141#L657-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2135#L645-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2136#L653-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2260#L679-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2058#L705-1 assume { :end_inline_processEnvironment } true; 2259#L628-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 2258#L511-5 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 2256#L71 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 2244#L77-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2242#L638 assume { :end_inline_timeShift } true; 2158#L873-2 [2022-02-21 04:17:26,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:26,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:26,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:26,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858922322] [2022-02-21 04:17:26,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:26,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:26,476 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:26,485 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:26,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:26,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1364414772, now seen corresponding path program 1 times [2022-02-21 04:17:26,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:26,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509124184] [2022-02-21 04:17:26,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:26,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:26,493 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:26,499 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:26,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:26,500 INFO L85 PathProgramCache]: Analyzing trace with hash -967223920, now seen corresponding path program 1 times [2022-02-21 04:17:26,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:26,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309295820] [2022-02-21 04:17:26,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:26,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:26,557 INFO L290 TraceCheckUtils]: 0: Hoare triple {2920#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,557 INFO L290 TraceCheckUtils]: 1: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,563 INFO L290 TraceCheckUtils]: 2: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,564 INFO L290 TraceCheckUtils]: 3: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,564 INFO L290 TraceCheckUtils]: 4: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} main_#t~ret55#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,565 INFO L290 TraceCheckUtils]: 5: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,566 INFO L290 TraceCheckUtils]: 6: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,566 INFO L290 TraceCheckUtils]: 7: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume !false; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,566 INFO L290 TraceCheckUtils]: 8: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,567 INFO L290 TraceCheckUtils]: 9: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,567 INFO L290 TraceCheckUtils]: 10: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~10#1); {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,567 INFO L290 TraceCheckUtils]: 11: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,568 INFO L290 TraceCheckUtils]: 12: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~3#1); {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,568 INFO L290 TraceCheckUtils]: 13: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,568 INFO L290 TraceCheckUtils]: 14: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet54#1;havoc test_#t~nondet54#1; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,569 INFO L290 TraceCheckUtils]: 15: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___1~1#1; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,569 INFO L290 TraceCheckUtils]: 16: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,569 INFO L290 TraceCheckUtils]: 17: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,569 INFO L290 TraceCheckUtils]: 18: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,570 INFO L290 TraceCheckUtils]: 19: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,570 INFO L290 TraceCheckUtils]: 20: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,570 INFO L290 TraceCheckUtils]: 21: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,571 INFO L290 TraceCheckUtils]: 22: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,571 INFO L290 TraceCheckUtils]: 23: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,571 INFO L290 TraceCheckUtils]: 24: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,572 INFO L290 TraceCheckUtils]: 25: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,572 INFO L290 TraceCheckUtils]: 26: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,572 INFO L290 TraceCheckUtils]: 27: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,572 INFO L290 TraceCheckUtils]: 28: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,573 INFO L290 TraceCheckUtils]: 29: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,573 INFO L290 TraceCheckUtils]: 30: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,574 INFO L290 TraceCheckUtils]: 31: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {2922#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:26,574 INFO L290 TraceCheckUtils]: 32: Hoare triple {2922#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {2923#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:17:26,575 INFO L290 TraceCheckUtils]: 33: Hoare triple {2923#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; {2924#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~0#1| 0)} is VALID [2022-02-21 04:17:26,575 INFO L290 TraceCheckUtils]: 34: Hoare triple {2924#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~0#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; {2921#false} is VALID [2022-02-21 04:17:26,575 INFO L290 TraceCheckUtils]: 35: Hoare triple {2921#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {2921#false} is VALID [2022-02-21 04:17:26,575 INFO L290 TraceCheckUtils]: 36: Hoare triple {2921#false} assume { :end_inline_timeShift } true; {2921#false} is VALID [2022-02-21 04:17:26,576 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 04:17:26,577 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:26,577 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309295820] [2022-02-21 04:17:26,577 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309295820] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:26,577 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:26,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:26,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556906891] [2022-02-21 04:17:26,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:26,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:26,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:26,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:26,812 INFO L87 Difference]: Start difference. First operand 326 states and 412 transitions. cyclomatic complexity: 88 Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 04:17:28,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:28,034 INFO L93 Difference]: Finished difference Result 1125 states and 1415 transitions. [2022-02-21 04:17:28,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:28,034 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 04:17:28,060 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:28,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1125 states and 1415 transitions. [2022-02-21 04:17:28,096 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 805 [2022-02-21 04:17:28,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1125 states to 1125 states and 1415 transitions. [2022-02-21 04:17:28,129 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1125 [2022-02-21 04:17:28,130 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1125 [2022-02-21 04:17:28,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1125 states and 1415 transitions. [2022-02-21 04:17:28,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:28,131 INFO L681 BuchiCegarLoop]: Abstraction has 1125 states and 1415 transitions. [2022-02-21 04:17:28,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states and 1415 transitions. [2022-02-21 04:17:28,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 645. [2022-02-21 04:17:28,142 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:28,143 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1125 states and 1415 transitions. Second operand has 645 states, 645 states have (on average 1.254263565891473) internal successors, (809), 644 states have internal predecessors, (809), 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 04:17:28,144 INFO L74 IsIncluded]: Start isIncluded. First operand 1125 states and 1415 transitions. Second operand has 645 states, 645 states have (on average 1.254263565891473) internal successors, (809), 644 states have internal predecessors, (809), 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 04:17:28,145 INFO L87 Difference]: Start difference. First operand 1125 states and 1415 transitions. Second operand has 645 states, 645 states have (on average 1.254263565891473) internal successors, (809), 644 states have internal predecessors, (809), 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 04:17:28,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:28,177 INFO L93 Difference]: Finished difference Result 1125 states and 1415 transitions. [2022-02-21 04:17:28,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1415 transitions. [2022-02-21 04:17:28,179 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:28,179 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:28,181 INFO L74 IsIncluded]: Start isIncluded. First operand has 645 states, 645 states have (on average 1.254263565891473) internal successors, (809), 644 states have internal predecessors, (809), 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 1125 states and 1415 transitions. [2022-02-21 04:17:28,181 INFO L87 Difference]: Start difference. First operand has 645 states, 645 states have (on average 1.254263565891473) internal successors, (809), 644 states have internal predecessors, (809), 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 1125 states and 1415 transitions. [2022-02-21 04:17:28,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:28,214 INFO L93 Difference]: Finished difference Result 1125 states and 1415 transitions. [2022-02-21 04:17:28,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1415 transitions. [2022-02-21 04:17:28,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:28,216 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:28,216 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:28,216 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:28,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 645 states have (on average 1.254263565891473) internal successors, (809), 644 states have internal predecessors, (809), 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 04:17:28,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 809 transitions. [2022-02-21 04:17:28,230 INFO L704 BuchiCegarLoop]: Abstraction has 645 states and 809 transitions. [2022-02-21 04:17:28,230 INFO L587 BuchiCegarLoop]: Abstraction has 645 states and 809 transitions. [2022-02-21 04:17:28,230 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:17:28,230 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 645 states and 809 transitions. [2022-02-21 04:17:28,232 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 448 [2022-02-21 04:17:28,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:28,232 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:28,233 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:28,233 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 04:17:28,233 INFO L791 eck$LassoCheckResult]: Stem: 4337#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 4294#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 4295#L596 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4275#L589 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 4276#L604 main_#t~ret55#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1; 4301#L1012 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 4287#L989 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4288#L873-2 [2022-02-21 04:17:28,233 INFO L793 eck$LassoCheckResult]: Loop: 4288#L873-2 assume !false; 4643#L874 assume test_~splverifierCounter~0#1 < 4; 4077#L875 test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 4078#L883 assume !(0 != test_~tmp~10#1); 4245#L883-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 4695#L893 assume !(0 != test_~tmp___0~3#1); 4693#L893-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 4692#L903 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 4690#L858 assume { :end_inline_startSystem } true; 4689#L911-2 assume { :begin_inline_timeShift } true; 4161#L621 assume !(0 != ~pumpRunning~0); 4162#L621-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 4283#L705 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 4296#L679-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 4297#L653-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 4327#L551-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 4302#L556-3 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 4273#L824-9 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 4198#L824-11 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 4199#L830-3 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 4274#L657-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4267#L645-6 assume { :end_inline_processEnvironment__wrappee__base } true; 4268#L653-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4098#L679-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 4099#L705-1 assume { :end_inline_processEnvironment } true; 4160#L628-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 4088#L511-5 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 4089#L71 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 4537#L543 __utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 4538#L77 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 4647#L77-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 4646#L638 assume { :end_inline_timeShift } true; 4288#L873-2 [2022-02-21 04:17:28,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:28,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:17:28,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:28,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870153674] [2022-02-21 04:17:28,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:28,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:28,241 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:28,247 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:28,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:28,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1182375168, now seen corresponding path program 1 times [2022-02-21 04:17:28,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:28,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675674828] [2022-02-21 04:17:28,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:28,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:28,269 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:28,278 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:28,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:28,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1734055740, now seen corresponding path program 1 times [2022-02-21 04:17:28,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:28,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563113321] [2022-02-21 04:17:28,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:28,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:28,292 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:28,316 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:30,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:30 BoogieIcfgContainer [2022-02-21 04:17:30,808 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:30,808 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:30,808 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:30,808 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:30,809 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:24" (3/4) ... [2022-02-21 04:17:30,811 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:30,863 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:30,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:30,865 INFO L158 Benchmark]: Toolchain (without parser) took 8065.95ms. Allocated memory was 83.9MB in the beginning and 161.5MB in the end (delta: 77.6MB). Free memory was 52.2MB in the beginning and 50.8MB in the end (delta: 1.4MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:30,865 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 83.9MB. Free memory was 40.7MB in the beginning and 40.7MB in the end (delta: 39.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:30,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 519.01ms. Allocated memory was 83.9MB in the beginning and 111.1MB in the end (delta: 27.3MB). Free memory was 52.0MB in the beginning and 74.1MB in the end (delta: -22.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:30,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.08ms. Allocated memory is still 111.1MB. Free memory was 74.1MB in the beginning and 66.9MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:30,865 INFO L158 Benchmark]: Boogie Preprocessor took 87.13ms. Allocated memory is still 111.1MB. Free memory was 66.9MB in the beginning and 62.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:30,866 INFO L158 Benchmark]: RCFGBuilder took 874.65ms. Allocated memory is still 111.1MB. Free memory was 62.7MB in the beginning and 60.5MB in the end (delta: 2.2MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2022-02-21 04:17:30,866 INFO L158 Benchmark]: BuchiAutomizer took 6419.98ms. Allocated memory was 111.1MB in the beginning and 161.5MB in the end (delta: 50.3MB). Free memory was 60.5MB in the beginning and 53.8MB in the end (delta: 6.7MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2022-02-21 04:17:30,866 INFO L158 Benchmark]: Witness Printer took 55.30ms. Allocated memory is still 161.5MB. Free memory was 53.8MB in the beginning and 50.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:30,867 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 0.40ms. Allocated memory is still 83.9MB. Free memory was 40.7MB in the beginning and 40.7MB in the end (delta: 39.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 519.01ms. Allocated memory was 83.9MB in the beginning and 111.1MB in the end (delta: 27.3MB). Free memory was 52.0MB in the beginning and 74.1MB in the end (delta: -22.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.08ms. Allocated memory is still 111.1MB. Free memory was 74.1MB in the beginning and 66.9MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.13ms. Allocated memory is still 111.1MB. Free memory was 66.9MB in the beginning and 62.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 874.65ms. Allocated memory is still 111.1MB. Free memory was 62.7MB in the beginning and 60.5MB in the end (delta: 2.2MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 6419.98ms. Allocated memory was 111.1MB in the beginning and 161.5MB in the end (delta: 50.3MB). Free memory was 60.5MB in the beginning and 53.8MB in the end (delta: 6.7MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. * Witness Printer took 55.30ms. Allocated memory is still 161.5MB. Free memory was 53.8MB in the beginning and 50.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 645 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.2s. Büchi inclusion checks took 2.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 480 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 645 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3180 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3180 mSDsluCounter, 2844 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1647 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 213 IncrementalHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 1197 mSDtfsCounter, 213 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 873]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32ea8621=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72e244c5=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4cf7bb55=29, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44f1ec53=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45257c2e=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@733e2208=0, methaneLevelCritical=0, tmp=0, tmp___0=1, \result=0, tmp=0, retValue_acc=0, retValue_acc=1, retValue_acc=1, tmp=1, retValue_acc=0, \result=1, tmp=1, \result=1, retValue_acc=0, tmp___1=0, tmp___2=29, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ad26e87=0, tmp___1=0, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62f0e5c9=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b0ffc32=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2df02d18=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@361f8b19=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@480c0761=0, tmp___0=0, \result=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 873]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L265] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L468] int waterLevel = 1; [L469] int methaneLevelCritical = 0; [L614] int pumpRunning = 0; [L615] int systemActive = 1; [L930] int cleanupTimeShifts = 4; [L1003] int retValue_acc ; [L1004] int tmp ; [L1008] FCALL select_helpers() [L1009] FCALL select_features() [L1010] CALL, EXPR valid_product() [L600] int retValue_acc ; [L603] retValue_acc = 1 [L604] return (retValue_acc); [L1010] RET, EXPR valid_product() [L1010] tmp = valid_product() [L1012] COND TRUE \read(tmp) [L1014] FCALL setup() [L1015] CALL runTest() [L997] CALL test() [L864] int splverifierCounter ; [L865] int tmp ; [L866] int tmp___0 ; [L867] int tmp___1 ; [L868] int tmp___2 ; [L871] splverifierCounter = 0 Loop: [L873] COND TRUE 1 [L875] COND TRUE splverifierCounter < 4 [L881] tmp = __VERIFIER_nondet_int() [L883] COND FALSE !(\read(tmp)) [L891] tmp___0 = __VERIFIER_nondet_int() [L893] COND FALSE !(\read(tmp___0)) [L901] tmp___2 = __VERIFIER_nondet_int() [L903] COND TRUE \read(tmp___2) [L905] CALL startSystem() [L857] systemActive = 1 [L905] RET startSystem() [L918] CALL timeShift() [L621] COND FALSE !(\read(pumpRunning)) [L628] COND TRUE \read(systemActive) [L630] CALL processEnvironment() [L702] int tmp ; [L705] COND FALSE !(\read(pumpRunning)) [L720] CALL processEnvironment__wrappee__methaneQuery() [L676] int tmp ; [L679] COND FALSE !(\read(pumpRunning)) [L694] CALL processEnvironment__wrappee__highWaterSensor() [L650] int tmp ; [L653] COND TRUE ! pumpRunning [L655] CALL, EXPR isHighWaterLevel() [L816] int retValue_acc ; [L817] int tmp ; [L818] int tmp___0 ; [L822] CALL, EXPR isHighWaterSensorDry() [L548] int retValue_acc ; [L551] COND TRUE waterLevel < 2 [L552] retValue_acc = 1 [L553] return (retValue_acc); [L822] RET, EXPR isHighWaterSensorDry() [L822] tmp = isHighWaterSensorDry() [L824] COND TRUE \read(tmp) [L825] tmp___0 = 0 [L829] retValue_acc = tmp___0 [L830] return (retValue_acc); [L655] RET, EXPR isHighWaterLevel() [L655] tmp = isHighWaterLevel() [L657] COND FALSE !(\read(tmp)) [L663] FCALL processEnvironment__wrappee__base() [L694] RET processEnvironment__wrappee__highWaterSensor() [L720] RET processEnvironment__wrappee__methaneQuery() [L630] RET processEnvironment() [L636] CALL __utac_acc__Specification3_spec__1() [L63] int tmp ; [L64] int tmp___0 ; [L65] int tmp___1 ; [L69] CALL, EXPR isMethaneLevelCritical() [L507] int retValue_acc ; [L510] retValue_acc = methaneLevelCritical [L511] return (retValue_acc); [L69] RET, EXPR isMethaneLevelCritical() [L69] tmp = isMethaneLevelCritical() [L71] COND FALSE !(\read(tmp)) [L75] CALL, EXPR getWaterLevel() [L539] int retValue_acc ; [L542] retValue_acc = waterLevel [L543] return (retValue_acc); [L75] RET, EXPR getWaterLevel() [L75] tmp___0 = getWaterLevel() [L77] COND FALSE !(tmp___0 == 2) [L636] RET __utac_acc__Specification3_spec__1() [L918] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:30,917 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)