./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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_product52.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e70c7d407828df40e6ca35d99b4a3a65ee0ebef631e767452684b3cd94b17437 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 04:18:15,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 04:18:15,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 04:18:15,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 04:18:15,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 04:18:15,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 04:18:15,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 04:18:15,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 04:18:15,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 04:18:15,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 04:18:15,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 04:18:15,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 04:18:15,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 04:18:15,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 04:18:15,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 04:18:15,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 04:18:15,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 04:18:15,946 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 04:18:15,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 04:18:15,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 04:18:15,953 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 04:18:15,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 04:18:15,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 04:18:15,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 04:18:15,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 04:18:15,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 04:18:15,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 04:18:15,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 04:18:15,962 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 04:18:15,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 04:18:15,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 04:18:15,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 04:18:15,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 04:18:15,965 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 04:18:15,966 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 04:18:15,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 04:18:15,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 04:18:15,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 04:18:15,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 04:18:15,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 04:18:15,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 04:18:15,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 04:18:15,970 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-13 04:18:15,992 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 04:18:15,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 04:18:15,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 04:18:15,993 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 04:18:15,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 04:18:15,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 04:18:15,995 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 04:18:15,995 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 04:18:15,995 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 04:18:15,996 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 04:18:15,996 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 04:18:15,996 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 04:18:15,996 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 04:18:15,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 04:18:15,997 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 04:18:15,997 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 04:18:15,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 04:18:15,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 04:18:15,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 04:18:15,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 04:18:15,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 04:18:15,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 04:18:15,999 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 04:18:15,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 04:18:15,999 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 04:18:16,000 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 04:18:16,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 04:18:16,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 04:18:16,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 04:18:16,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 04:18:16,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 04:18:16,002 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 04:18:16,002 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70c7d407828df40e6ca35d99b4a3a65ee0ebef631e767452684b3cd94b17437 [2022-07-13 04:18:16,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 04:18:16,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 04:18:16,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 04:18:16,216 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 04:18:16,217 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 04:18:16,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2022-07-13 04:18:16,283 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/243ce6676/bd6512f3ff024fa395156315a8c53c9b/FLAGc1f7cfa77 [2022-07-13 04:18:16,724 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 04:18:16,728 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2022-07-13 04:18:16,737 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/243ce6676/bd6512f3ff024fa395156315a8c53c9b/FLAGc1f7cfa77 [2022-07-13 04:18:17,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/243ce6676/bd6512f3ff024fa395156315a8c53c9b [2022-07-13 04:18:17,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 04:18:17,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 04:18:17,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 04:18:17,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 04:18:17,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 04:18:17,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 04:18:17" (1/1) ... [2022-07-13 04:18:17,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@334307b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:17, skipping insertion in model container [2022-07-13 04:18:17,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 04:18:17" (1/1) ... [2022-07-13 04:18:17,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 04:18:17,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 04:18:17,356 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_product52.cil.c[17256,17269] [2022-07-13 04:18:17,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 04:18:17,382 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 04:18:17,442 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_product52.cil.c[17256,17269] [2022-07-13 04:18:17,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 04:18:17,469 INFO L208 MainTranslator]: Completed translation [2022-07-13 04:18:17,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:17 WrapperNode [2022-07-13 04:18:17,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 04:18:17,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 04:18:17,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 04:18:17,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 04:18:17,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:17" (1/1) ... [2022-07-13 04:18:17,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:17" (1/1) ... [2022-07-13 04:18:17,516 INFO L137 Inliner]: procedures = 57, calls = 158, calls flagged for inlining = 55, calls inlined = 83, statements flattened = 642 [2022-07-13 04:18:17,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 04:18:17,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 04:18:17,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 04:18:17,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 04:18:17,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:17" (1/1) ... [2022-07-13 04:18:17,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:17" (1/1) ... [2022-07-13 04:18:17,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:17" (1/1) ... [2022-07-13 04:18:17,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:17" (1/1) ... [2022-07-13 04:18:17,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:17" (1/1) ... [2022-07-13 04:18:17,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:17" (1/1) ... [2022-07-13 04:18:17,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:17" (1/1) ... [2022-07-13 04:18:17,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 04:18:17,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 04:18:17,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 04:18:17,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 04:18:17,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:17" (1/1) ... [2022-07-13 04:18:17,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:18:17,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:18:17,590 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) [2022-07-13 04:18:17,591 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 [2022-07-13 04:18:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 04:18:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 04:18:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 04:18:17,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 04:18:17,666 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 04:18:17,667 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 04:18:18,017 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 04:18:18,024 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 04:18:18,024 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 04:18:18,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 04:18:18 BoogieIcfgContainer [2022-07-13 04:18:18,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 04:18:18,036 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 04:18:18,036 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 04:18:18,039 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 04:18:18,039 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 04:18:18,040 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 04:18:17" (1/3) ... [2022-07-13 04:18:18,040 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5663abf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 04:18:18, skipping insertion in model container [2022-07-13 04:18:18,041 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 04:18:18,041 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:17" (2/3) ... [2022-07-13 04:18:18,041 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5663abf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 04:18:18, skipping insertion in model container [2022-07-13 04:18:18,041 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 04:18:18,041 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 04:18:18" (3/3) ... [2022-07-13 04:18:18,042 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2022-07-13 04:18:18,090 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 04:18:18,090 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 04:18:18,090 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 04:18:18,090 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 04:18:18,090 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 04:18:18,090 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 04:18:18,090 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 04:18:18,090 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 04:18:18,093 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 173 states, 172 states have (on average 1.377906976744186) internal successors, (237), 172 states have internal predecessors, (237), 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) [2022-07-13 04:18:18,115 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2022-07-13 04:18:18,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:18:18,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:18:18,120 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:18,120 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:18,120 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 04:18:18,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 173 states, 172 states have (on average 1.377906976744186) internal successors, (237), 172 states have internal predecessors, (237), 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) [2022-07-13 04:18:18,127 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2022-07-13 04:18:18,128 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:18:18,128 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:18:18,128 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:18,128 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:18,132 INFO L752 eck$LassoCheckResult]: Stem: 153#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 44#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 93#L893true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 170#L886true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 166#L901true main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 43#L988true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 101#L965true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 111#L800-2true [2022-07-13 04:18:18,132 INFO L754 eck$LassoCheckResult]: Loop: 111#L800-2true assume !false; 143#L801true assume test_~splverifierCounter~0#1 < 4; 60#L802true test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 5#L810true assume !(0 != test_~tmp~8#1); 25#L810-2true test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 29#L820true assume !(0 != test_~tmp___0~3#1); 122#L820-2true test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 131#L830true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 31#L838true assume !(0 != test_~tmp___1~1#1); 129#L838-2true assume { :begin_inline_timeShift } true; 105#L576true assume !(0 != ~pumpRunning~0); 52#L576-2true assume !(0 != ~systemActive~0); 47#L583-1true 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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 76#L137true __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; 7#L63true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 164#L69-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 86#L593true assume { :end_inline_timeShift } true; 111#L800-2true [2022-07-13 04:18:18,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:18,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-13 04:18:18,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:18,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480558135] [2022-07-13 04:18:18,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:18,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:18,261 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:18,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:18,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:18,336 INFO L85 PathProgramCache]: Analyzing trace with hash -902471231, now seen corresponding path program 1 times [2022-07-13 04:18:18,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:18,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054959315] [2022-07-13 04:18:18,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:18,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:18,355 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:18,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:18,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:18,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1834152835, now seen corresponding path program 1 times [2022-07-13 04:18:18,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:18,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295505388] [2022-07-13 04:18:18,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:18,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:18:18,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:18:18,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:18:18,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295505388] [2022-07-13 04:18:18,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295505388] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 04:18:18,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 04:18:18,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 04:18:18,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085214965] [2022-07-13 04:18:18,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 04:18:18,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:18:18,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 04:18:18,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 04:18:18,693 INFO L87 Difference]: Start difference. First operand has 173 states, 172 states have (on average 1.377906976744186) internal successors, (237), 172 states have internal predecessors, (237), 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) [2022-07-13 04:18:18,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:18:18,850 INFO L93 Difference]: Finished difference Result 564 states and 746 transitions. [2022-07-13 04:18:18,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 04:18:18,855 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 564 states and 746 transitions. [2022-07-13 04:18:18,865 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 368 [2022-07-13 04:18:18,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 564 states to 524 states and 706 transitions. [2022-07-13 04:18:18,879 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 524 [2022-07-13 04:18:18,881 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 524 [2022-07-13 04:18:18,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 524 states and 706 transitions. [2022-07-13 04:18:18,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 04:18:18,887 INFO L369 hiAutomatonCegarLoop]: Abstraction has 524 states and 706 transitions. [2022-07-13 04:18:18,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states and 706 transitions. [2022-07-13 04:18:18,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 218. [2022-07-13 04:18:18,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 218 states have (on average 1.3440366972477065) internal successors, (293), 217 states have internal predecessors, (293), 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) [2022-07-13 04:18:18,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 293 transitions. [2022-07-13 04:18:18,930 INFO L392 hiAutomatonCegarLoop]: Abstraction has 218 states and 293 transitions. [2022-07-13 04:18:18,930 INFO L374 stractBuchiCegarLoop]: Abstraction has 218 states and 293 transitions. [2022-07-13 04:18:18,930 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 04:18:18,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 218 states and 293 transitions. [2022-07-13 04:18:18,932 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 153 [2022-07-13 04:18:18,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:18:18,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:18:18,932 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:18,932 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:18,932 INFO L752 eck$LassoCheckResult]: Stem: 913#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 825#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 826#L893 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 881#L886 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 915#L901 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 823#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 824#L965 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 874#L800-2 [2022-07-13 04:18:18,934 INFO L754 eck$LassoCheckResult]: Loop: 874#L800-2 assume !false; 893#L801 assume test_~splverifierCounter~0#1 < 4; 846#L802 test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 758#L810 assume !(0 != test_~tmp~8#1); 760#L810-2 test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 793#L820 assume !(0 != test_~tmp___0~3#1); 801#L820-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 901#L830 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 804#L838 assume !(0 != test_~tmp___1~1#1); 805#L838-2 assume { :begin_inline_timeShift } true; 887#L576 assume !(0 != ~pumpRunning~0); 838#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 839#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 896#L608-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 815#L600-3 assume { :end_inline_processEnvironment__wrappee__base } true; 809#L608-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 810#L634-1 assume { :end_inline_processEnvironment } true; 830#L583-1 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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 831#L137 __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; 764#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 765#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 873#L593 assume { :end_inline_timeShift } true; 874#L800-2 [2022-07-13 04:18:18,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:18,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-13 04:18:18,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:18,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677521976] [2022-07-13 04:18:18,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:18,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:18,954 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:18,975 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:18,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:18,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2056880329, now seen corresponding path program 1 times [2022-07-13 04:18:18,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:18,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165854509] [2022-07-13 04:18:18,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:18,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:18:18,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:18:18,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:18:18,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165854509] [2022-07-13 04:18:18,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165854509] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 04:18:18,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 04:18:18,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 04:18:18,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104762968] [2022-07-13 04:18:18,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 04:18:18,992 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 04:18:18,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:18:18,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 04:18:18,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 04:18:18,993 INFO L87 Difference]: Start difference. First operand 218 states and 293 transitions. cyclomatic complexity: 78 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:18:19,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:18:19,052 INFO L93 Difference]: Finished difference Result 275 states and 354 transitions. [2022-07-13 04:18:19,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 04:18:19,053 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 275 states and 354 transitions. [2022-07-13 04:18:19,056 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 197 [2022-07-13 04:18:19,057 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 275 states to 275 states and 354 transitions. [2022-07-13 04:18:19,057 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 275 [2022-07-13 04:18:19,057 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 275 [2022-07-13 04:18:19,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 275 states and 354 transitions. [2022-07-13 04:18:19,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 04:18:19,057 INFO L369 hiAutomatonCegarLoop]: Abstraction has 275 states and 354 transitions. [2022-07-13 04:18:19,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states and 354 transitions. [2022-07-13 04:18:19,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2022-07-13 04:18:19,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 275 states have (on average 1.2872727272727273) internal successors, (354), 274 states have internal predecessors, (354), 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) [2022-07-13 04:18:19,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 354 transitions. [2022-07-13 04:18:19,073 INFO L392 hiAutomatonCegarLoop]: Abstraction has 275 states and 354 transitions. [2022-07-13 04:18:19,073 INFO L374 stractBuchiCegarLoop]: Abstraction has 275 states and 354 transitions. [2022-07-13 04:18:19,073 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-13 04:18:19,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 275 states and 354 transitions. [2022-07-13 04:18:19,075 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 197 [2022-07-13 04:18:19,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:18:19,075 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:18:19,077 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:19,077 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:19,077 INFO L752 eck$LassoCheckResult]: Stem: 1435#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1323#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 1324#L893 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1387#L886 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 1443#L901 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1321#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 1322#L965 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1392#L800-2 [2022-07-13 04:18:19,077 INFO L754 eck$LassoCheckResult]: Loop: 1392#L800-2 assume !false; 1403#L801 assume test_~splverifierCounter~0#1 < 4; 1429#L802 test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 1257#L810 assume !(0 != test_~tmp~8#1); 1259#L810-2 test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 1291#L820 assume !(0 != test_~tmp___0~3#1); 1411#L820-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 1412#L830 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1424#L785 assume { :end_inline_startSystem } true; 1417#L838-2 assume { :begin_inline_timeShift } true; 1418#L576 assume !(0 != ~pumpRunning~0); 1336#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1337#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1407#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1363#L177-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1364#L182-1 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 1266#L736-3 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1267#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1325#L742-1 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 1326#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1427#L600-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1303#L608-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1304#L634-1 assume { :end_inline_processEnvironment } true; 1328#L583-1 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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1329#L137 __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; 1370#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 1440#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1441#L593 assume { :end_inline_timeShift } true; 1392#L800-2 [2022-07-13 04:18:19,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:19,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-13 04:18:19,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:19,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483173373] [2022-07-13 04:18:19,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:19,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:19,088 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:19,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:19,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:19,095 INFO L85 PathProgramCache]: Analyzing trace with hash -489061093, now seen corresponding path program 1 times [2022-07-13 04:18:19,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:19,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134320587] [2022-07-13 04:18:19,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:19,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:18:19,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:18:19,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:18:19,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134320587] [2022-07-13 04:18:19,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134320587] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 04:18:19,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 04:18:19,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 04:18:19,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991859671] [2022-07-13 04:18:19,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 04:18:19,114 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 04:18:19,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:18:19,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 04:18:19,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 04:18:19,115 INFO L87 Difference]: Start difference. First operand 275 states and 354 transitions. cyclomatic complexity: 82 Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:18:19,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:18:19,166 INFO L93 Difference]: Finished difference Result 537 states and 683 transitions. [2022-07-13 04:18:19,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 04:18:19,167 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 537 states and 683 transitions. [2022-07-13 04:18:19,169 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 390 [2022-07-13 04:18:19,171 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 537 states to 537 states and 683 transitions. [2022-07-13 04:18:19,171 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 537 [2022-07-13 04:18:19,172 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 537 [2022-07-13 04:18:19,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 537 states and 683 transitions. [2022-07-13 04:18:19,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 04:18:19,172 INFO L369 hiAutomatonCegarLoop]: Abstraction has 537 states and 683 transitions. [2022-07-13 04:18:19,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states and 683 transitions. [2022-07-13 04:18:19,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 287. [2022-07-13 04:18:19,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 287 states have (on average 1.2752613240418118) internal successors, (366), 286 states have internal predecessors, (366), 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) [2022-07-13 04:18:19,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 366 transitions. [2022-07-13 04:18:19,176 INFO L392 hiAutomatonCegarLoop]: Abstraction has 287 states and 366 transitions. [2022-07-13 04:18:19,176 INFO L374 stractBuchiCegarLoop]: Abstraction has 287 states and 366 transitions. [2022-07-13 04:18:19,176 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-13 04:18:19,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 287 states and 366 transitions. [2022-07-13 04:18:19,177 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 205 [2022-07-13 04:18:19,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:18:19,177 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:18:19,178 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:19,178 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:19,178 INFO L752 eck$LassoCheckResult]: Stem: 2256#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 2146#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 2147#L893 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2212#L886 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 2263#L901 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 2144#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 2145#L965 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2216#L800-2 [2022-07-13 04:18:19,178 INFO L754 eck$LassoCheckResult]: Loop: 2216#L800-2 assume !false; 2338#L801 assume test_~splverifierCounter~0#1 < 4; 2337#L802 test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 2079#L810 assume !(0 != test_~tmp~8#1); 2081#L810-2 test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 2113#L820 assume !(0 != test_~tmp___0~3#1); 2121#L820-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 2236#L830 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2244#L785 assume { :end_inline_startSystem } true; 2125#L838-2 assume { :begin_inline_timeShift } true; 2220#L576 assume !(0 != ~pumpRunning~0); 2159#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2160#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 2231#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 2185#L177-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2186#L182-1 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 2088#L736-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2089#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 2148#L742-1 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 2149#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2249#L600-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2127#L608-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2128#L634-1 assume { :end_inline_processEnvironment } true; 2153#L583-1 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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 2154#L137 __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; 2085#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 2086#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2262#L593 assume { :end_inline_timeShift } true; 2216#L800-2 [2022-07-13 04:18:19,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:19,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-07-13 04:18:19,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:19,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192316367] [2022-07-13 04:18:19,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:19,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:19,189 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:19,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:19,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:19,205 INFO L85 PathProgramCache]: Analyzing trace with hash -747226531, now seen corresponding path program 1 times [2022-07-13 04:18:19,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:19,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671298684] [2022-07-13 04:18:19,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:19,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:19,213 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:19,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:19,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:19,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1998208479, now seen corresponding path program 1 times [2022-07-13 04:18:19,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:19,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262780481] [2022-07-13 04:18:19,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:19,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:18:19,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:18:19,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:18:19,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262780481] [2022-07-13 04:18:19,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262780481] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 04:18:19,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 04:18:19,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 04:18:19,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096021840] [2022-07-13 04:18:19,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 04:18:19,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:18:19,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 04:18:19,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 04:18:19,466 INFO L87 Difference]: Start difference. First operand 287 states and 366 transitions. cyclomatic complexity: 82 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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) [2022-07-13 04:18:19,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:18:19,519 INFO L93 Difference]: Finished difference Result 1030 states and 1304 transitions. [2022-07-13 04:18:19,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 04:18:19,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1030 states and 1304 transitions. [2022-07-13 04:18:19,524 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 786 [2022-07-13 04:18:19,528 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1030 states to 1030 states and 1304 transitions. [2022-07-13 04:18:19,529 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1030 [2022-07-13 04:18:19,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1030 [2022-07-13 04:18:19,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1030 states and 1304 transitions. [2022-07-13 04:18:19,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 04:18:19,530 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1030 states and 1304 transitions. [2022-07-13 04:18:19,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states and 1304 transitions. [2022-07-13 04:18:19,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 567. [2022-07-13 04:18:19,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 567 states have (on average 1.2574955908289243) internal successors, (713), 566 states have internal predecessors, (713), 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) [2022-07-13 04:18:19,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 713 transitions. [2022-07-13 04:18:19,537 INFO L392 hiAutomatonCegarLoop]: Abstraction has 567 states and 713 transitions. [2022-07-13 04:18:19,537 INFO L374 stractBuchiCegarLoop]: Abstraction has 567 states and 713 transitions. [2022-07-13 04:18:19,538 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-13 04:18:19,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 567 states and 713 transitions. [2022-07-13 04:18:19,539 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 410 [2022-07-13 04:18:19,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:18:19,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:18:19,541 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:19,541 INFO L180 hiAutomatonCegarLoop]: 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] [2022-07-13 04:18:19,541 INFO L752 eck$LassoCheckResult]: Stem: 3605#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 3480#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 3481#L893 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3553#L886 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 3610#L901 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 3478#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 3479#L965 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3558#L800-2 [2022-07-13 04:18:19,541 INFO L754 eck$LassoCheckResult]: Loop: 3558#L800-2 assume !false; 3858#L801 assume test_~splverifierCounter~0#1 < 4; 3859#L802 test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 3955#L810 assume !(0 != test_~tmp~8#1); 3953#L810-2 test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 3952#L820 assume !(0 != test_~tmp___0~3#1); 3949#L820-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 3948#L830 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 3947#L838 assume !(0 != test_~tmp___1~1#1); 3946#L838-2 assume { :begin_inline_timeShift } true; 3945#L576 assume !(0 != ~pumpRunning~0); 3838#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 3829#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 3827#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 3824#L177-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 3825#L182-1 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 3819#L736-3 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 3816#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 3814#L742-1 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 3810#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3811#L600-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3903#L608-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3900#L634-1 assume { :end_inline_processEnvironment } true; 3897#L583-1 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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 3896#L137 __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; 3895#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 3894#L169 __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; 3891#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 3890#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3889#L593 assume { :end_inline_timeShift } true; 3558#L800-2 [2022-07-13 04:18:19,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:19,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-07-13 04:18:19,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:19,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041634785] [2022-07-13 04:18:19,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:19,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:19,556 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:19,564 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:19,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:19,564 INFO L85 PathProgramCache]: Analyzing trace with hash -202306466, now seen corresponding path program 1 times [2022-07-13 04:18:19,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:19,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724064699] [2022-07-13 04:18:19,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:19,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:18:19,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:18:19,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:18:19,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724064699] [2022-07-13 04:18:19,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724064699] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 04:18:19,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 04:18:19,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 04:18:19,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664286030] [2022-07-13 04:18:19,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 04:18:19,594 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 04:18:19,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:18:19,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 04:18:19,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 04:18:19,594 INFO L87 Difference]: Start difference. First operand 567 states and 713 transitions. cyclomatic complexity: 151 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:18:19,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:18:19,693 INFO L93 Difference]: Finished difference Result 1447 states and 1807 transitions. [2022-07-13 04:18:19,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 04:18:19,695 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1447 states and 1807 transitions. [2022-07-13 04:18:19,700 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 1070 [2022-07-13 04:18:19,705 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1447 states to 1447 states and 1807 transitions. [2022-07-13 04:18:19,706 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1447 [2022-07-13 04:18:19,706 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1447 [2022-07-13 04:18:19,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1447 states and 1807 transitions. [2022-07-13 04:18:19,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 04:18:19,707 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1447 states and 1807 transitions. [2022-07-13 04:18:19,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states and 1807 transitions. [2022-07-13 04:18:19,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 603. [2022-07-13 04:18:19,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 603 states have (on average 1.24212271973466) internal successors, (749), 602 states have internal predecessors, (749), 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) [2022-07-13 04:18:19,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 749 transitions. [2022-07-13 04:18:19,716 INFO L392 hiAutomatonCegarLoop]: Abstraction has 603 states and 749 transitions. [2022-07-13 04:18:19,716 INFO L374 stractBuchiCegarLoop]: Abstraction has 603 states and 749 transitions. [2022-07-13 04:18:19,716 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-13 04:18:19,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 603 states and 749 transitions. [2022-07-13 04:18:19,719 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 434 [2022-07-13 04:18:19,719 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:18:19,719 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:18:19,719 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:19,719 INFO L180 hiAutomatonCegarLoop]: 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] [2022-07-13 04:18:19,719 INFO L752 eck$LassoCheckResult]: Stem: 5679#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 5513#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 5514#L893 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5593#L886 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 5699#L901 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 5511#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 5512#L965 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5583#L800-2 [2022-07-13 04:18:19,719 INFO L754 eck$LassoCheckResult]: Loop: 5583#L800-2 assume !false; 5619#L801 assume test_~splverifierCounter~0#1 < 4; 5938#L802 test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 5936#L810 assume !(0 != test_~tmp~8#1); 5475#L810-2 test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 5476#L820 assume !(0 != test_~tmp___0~3#1); 5571#L820-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 5906#L830 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 5490#L838 assume !(0 != test_~tmp___1~1#1); 5491#L838-2 assume { :begin_inline_timeShift } true; 5648#L576 assume !(0 != ~pumpRunning~0); 5527#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 5528#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 5625#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 5558#L177-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 5559#L182-1 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 5449#L736-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 5450#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 5734#L742-1 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 5735#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5825#L600-2 assume { :end_inline_processEnvironment__wrappee__base } true; 5488#L608-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5489#L634-1 assume { :end_inline_processEnvironment } true; 5519#L583-1 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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 5520#L137 __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; 5447#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 5448#L169 __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; 5941#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 5694#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 5582#L593 assume { :end_inline_timeShift } true; 5583#L800-2 [2022-07-13 04:18:19,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:19,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 6 times [2022-07-13 04:18:19,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:19,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179392352] [2022-07-13 04:18:19,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:19,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:19,725 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:19,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:19,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:19,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1829879138, now seen corresponding path program 1 times [2022-07-13 04:18:19,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:19,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093183538] [2022-07-13 04:18:19,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:19,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:19,749 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:19,756 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:19,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:19,756 INFO L85 PathProgramCache]: Analyzing trace with hash -2067897306, now seen corresponding path program 1 times [2022-07-13 04:18:19,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:19,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675973354] [2022-07-13 04:18:19,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:19,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:19,768 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:19,783 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:22,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 04:18:22 BoogieIcfgContainer [2022-07-13 04:18:22,125 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 04:18:22,126 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 04:18:22,126 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 04:18:22,126 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 04:18:22,127 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 04:18:18" (3/4) ... [2022-07-13 04:18:22,128 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-13 04:18:22,178 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 04:18:22,178 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 04:18:22,178 INFO L158 Benchmark]: Toolchain (without parser) took 5079.31ms. Allocated memory was 102.8MB in the beginning and 151.0MB in the end (delta: 48.2MB). Free memory was 70.3MB in the beginning and 47.2MB in the end (delta: 23.1MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. [2022-07-13 04:18:22,179 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 79.7MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 04:18:22,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.45ms. Allocated memory is still 102.8MB. Free memory was 70.2MB in the beginning and 69.8MB in the end (delta: 360.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-13 04:18:22,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.45ms. Allocated memory is still 102.8MB. Free memory was 69.8MB in the beginning and 66.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 04:18:22,179 INFO L158 Benchmark]: Boogie Preprocessor took 35.91ms. Allocated memory is still 102.8MB. Free memory was 66.4MB in the beginning and 64.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 04:18:22,180 INFO L158 Benchmark]: RCFGBuilder took 482.50ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 64.0MB in the beginning and 92.0MB in the end (delta: -28.1MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-07-13 04:18:22,180 INFO L158 Benchmark]: BuchiAutomizer took 4089.22ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 91.8MB in the beginning and 50.3MB in the end (delta: 41.6MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. [2022-07-13 04:18:22,180 INFO L158 Benchmark]: Witness Printer took 51.95ms. Allocated memory is still 151.0MB. Free memory was 50.3MB in the beginning and 47.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 04:18:22,182 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 79.7MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.45ms. Allocated memory is still 102.8MB. Free memory was 70.2MB in the beginning and 69.8MB in the end (delta: 360.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.45ms. Allocated memory is still 102.8MB. Free memory was 69.8MB in the beginning and 66.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.91ms. Allocated memory is still 102.8MB. Free memory was 66.4MB in the beginning and 64.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 482.50ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 64.0MB in the beginning and 92.0MB in the end (delta: -28.1MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 4089.22ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 91.8MB in the beginning and 50.3MB in the end (delta: 41.6MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. * Witness Printer took 51.95ms. Allocated memory is still 151.0MB. Free memory was 50.3MB in the beginning and 47.2MB 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 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 603 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 1863 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3065 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3065 mSDsluCounter, 5070 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3667 mSDsCounter, 85 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 289 IncrementalHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 85 mSolverCounterUnsat, 1403 mSDtfsCounter, 289 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 800]: 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@7e9fcdc6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@112481a=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cd35008=0, NULL=1, retValue_acc=1, methaneLevelCritical=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27846cc3=0, tmp___0=1, \result=0, tmp=0, retValue_acc=0, retValue_acc=0, \result=1, \result=1, tmp=1, tmp___1=0, tmp___2=0, tmp=1, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42753369=0, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f336b1f=0, waterLevel=1, systemActive=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2161f3ad=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@dff152a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3caf0cd1=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20b36936=0, tmp___0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5bc998fa=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 800]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L569] int pumpRunning = 0; [L570] int systemActive = 1; [L906] int cleanupTimeShifts = 4; [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L897] int retValue_acc ; [L900] retValue_acc = 1 [L901] return (retValue_acc); [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L791] int splverifierCounter ; [L792] int tmp ; [L793] int tmp___0 ; [L794] int tmp___1 ; [L795] int tmp___2 ; [L798] splverifierCounter = 0 Loop: [L800] COND TRUE 1 [L802] COND TRUE splverifierCounter < 4 [L808] tmp = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp)) [L818] tmp___0 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___0)) [L828] tmp___2 = __VERIFIER_nondet_int() [L830] COND FALSE !(\read(tmp___2)) [L836] tmp___1 = __VERIFIER_nondet_int() [L838] COND FALSE !(\read(tmp___1)) [L847] CALL timeShift() [L576] COND FALSE !(\read(pumpRunning)) [L583] COND TRUE \read(systemActive) [L585] CALL processEnvironment() [L631] int tmp ; [L634] COND FALSE !(\read(pumpRunning)) [L649] CALL processEnvironment__wrappee__highWaterSensor() [L605] int tmp ; [L608] COND TRUE ! pumpRunning [L610] CALL, EXPR isHighWaterLevel() [L728] int retValue_acc ; [L729] int tmp ; [L730] int tmp___0 ; [L734] CALL, EXPR isHighWaterSensorDry() [L174] int retValue_acc ; [L177] COND TRUE waterLevel < 2 [L178] retValue_acc = 1 [L179] return (retValue_acc); [L734] RET, EXPR isHighWaterSensorDry() [L734] tmp = isHighWaterSensorDry() [L736] COND TRUE \read(tmp) [L737] tmp___0 = 0 [L741] retValue_acc = tmp___0 [L742] return (retValue_acc); [L610] RET, EXPR isHighWaterLevel() [L610] tmp = isHighWaterLevel() [L612] COND FALSE !(\read(tmp)) [L618] FCALL processEnvironment__wrappee__base() [L649] RET processEnvironment__wrappee__highWaterSensor() [L585] RET processEnvironment() [L591] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L165] int retValue_acc ; [L168] retValue_acc = waterLevel [L169] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L591] RET __utac_acc__Specification3_spec__1() [L847] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-13 04:18:22,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)