./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 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_spec5_product48.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 96a9f4a5eb48d3a052332271e6f513d6efe176b9f027fc1b42847acbd4831cf9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 15:59:55,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:59:55,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:59:55,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:59:55,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:59:55,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:59:55,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:59:55,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:59:55,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:59:55,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:59:55,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:59:55,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:59:55,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:59:55,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:59:55,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:59:55,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:59:55,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:59:55,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:59:55,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:59:55,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:59:55,534 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:59:55,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:59:55,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:59:55,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:59:55,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:59:55,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:59:55,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:59:55,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:59:55,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:59:55,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:59:55,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:59:55,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:59:55,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:59:55,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:59:55,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:59:55,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:59:55,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:59:55,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:59:55,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:59:55,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:59:55,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:59:55,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:59:55,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 15:59:55,571 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:59:55,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:59:55,571 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:59:55,571 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:59:55,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:59:55,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:59:55,572 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:59:55,573 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:59:55,573 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:59:55,573 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:59:55,573 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:59:55,573 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:59:55,573 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:59:55,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:59:55,574 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 15:59:55,574 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:59:55,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:59:55,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 15:59:55,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:59:55,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:59:55,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:59:55,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:59:55,575 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 15:59:55,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:59:55,575 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:59:55,575 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:59:55,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:59:55,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:59:55,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:59:55,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:59:55,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:59:55,577 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:59:55,577 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96a9f4a5eb48d3a052332271e6f513d6efe176b9f027fc1b42847acbd4831cf9 [2022-07-14 15:59:55,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:59:55,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:59:55,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:59:55,791 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:59:55,792 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:59:55,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product48.cil.c [2022-07-14 15:59:55,844 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46b5e3e13/ed2dd93d896f4b40a9b8bb69d448e05d/FLAG8021f8b0a [2022-07-14 15:59:56,250 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:59:56,251 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product48.cil.c [2022-07-14 15:59:56,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46b5e3e13/ed2dd93d896f4b40a9b8bb69d448e05d/FLAG8021f8b0a [2022-07-14 15:59:56,279 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46b5e3e13/ed2dd93d896f4b40a9b8bb69d448e05d [2022-07-14 15:59:56,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:59:56,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:59:56,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:59:56,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:59:56,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:59:56,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:59:56" (1/1) ... [2022-07-14 15:59:56,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f527eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:56, skipping insertion in model container [2022-07-14 15:59:56,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:59:56" (1/1) ... [2022-07-14 15:59:56,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:59:56,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:59:56,505 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product48.cil.c[11292,11305] [2022-07-14 15:59:56,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:59:56,551 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:59:56,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product48.cil.c[11292,11305] [2022-07-14 15:59:56,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:59:56,608 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:59:56,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:56 WrapperNode [2022-07-14 15:59:56,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:59:56,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:59:56,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:59:56,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:59:56,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:56" (1/1) ... [2022-07-14 15:59:56,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:56" (1/1) ... [2022-07-14 15:59:56,658 INFO L137 Inliner]: procedures = 58, calls = 161, calls flagged for inlining = 58, calls inlined = 105, statements flattened = 757 [2022-07-14 15:59:56,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:59:56,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:59:56,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:59:56,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:59:56,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:56" (1/1) ... [2022-07-14 15:59:56,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:56" (1/1) ... [2022-07-14 15:59:56,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:56" (1/1) ... [2022-07-14 15:59:56,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:56" (1/1) ... [2022-07-14 15:59:56,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:56" (1/1) ... [2022-07-14 15:59:56,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:56" (1/1) ... [2022-07-14 15:59:56,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:56" (1/1) ... [2022-07-14 15:59:56,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:59:56,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:59:56,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:59:56,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:59:56,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:56" (1/1) ... [2022-07-14 15:59:56,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:59:56,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:59:56,752 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) [2022-07-14 15:59:56,770 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 [2022-07-14 15:59:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 15:59:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 15:59:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:59:56,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:59:56,849 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:59:56,850 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:59:57,287 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:59:57,295 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:59:57,295 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 15:59:57,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:59:57 BoogieIcfgContainer [2022-07-14 15:59:57,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:59:57,297 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:59:57,297 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:59:57,309 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:59:57,309 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:59:57,309 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:59:56" (1/3) ... [2022-07-14 15:59:57,310 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78c7cc0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:59:57, skipping insertion in model container [2022-07-14 15:59:57,310 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:59:57,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:56" (2/3) ... [2022-07-14 15:59:57,310 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78c7cc0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:59:57, skipping insertion in model container [2022-07-14 15:59:57,310 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:59:57,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:59:57" (3/3) ... [2022-07-14 15:59:57,311 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product48.cil.c [2022-07-14 15:59:57,352 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:59:57,352 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:59:57,352 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:59:57,352 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:59:57,352 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:59:57,352 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:59:57,352 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:59:57,353 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:59:57,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 195 states, 194 states have (on average 1.3505154639175259) internal successors, (262), 194 states have internal predecessors, (262), 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) [2022-07-14 15:59:57,373 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2022-07-14 15:59:57,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:59:57,373 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:59:57,378 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:59:57,378 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] [2022-07-14 15:59:57,379 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:59:57,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 195 states, 194 states have (on average 1.3505154639175259) internal successors, (262), 194 states have internal predecessors, (262), 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) [2022-07-14 15:59:57,385 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2022-07-14 15:59:57,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:59:57,386 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:59:57,386 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:59:57,386 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] [2022-07-14 15:59:57,389 INFO L752 eck$LassoCheckResult]: Stem: 188#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 120#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~8#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 143#L998true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 10#L991true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 91#L1006true main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 83#L913true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 35#L885true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 107#L933true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 62#L441-2true [2022-07-14 15:59:57,390 INFO L754 eck$LassoCheckResult]: Loop: 62#L441-2true assume !false; 111#L442true assume test_~splverifierCounter~0#1 < 4; 41#L443true test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 92#L451true assume !(0 != test_~tmp~3#1); 162#L451-2true test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 3#L461true assume !(0 != test_~tmp___0~0#1); 19#L461-2true test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 18#L471true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 103#L727true assume { :end_inline_startSystem } true; 114#L479-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 196#L648true __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 179#L943true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 121#L520true assume !(0 != ~pumpRunning~0); 151#L520-2true assume !(0 != ~systemActive~0); 71#L527-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 98#L807true __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 194#L954true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 44#L954-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 55#L537true assume { :end_inline_timeShift } true; 62#L441-2true [2022-07-14 15:59:57,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:59:57,393 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-07-14 15:59:57,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:59:57,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004151564] [2022-07-14 15:59:57,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:59:57,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:59:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:57,469 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:59:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:57,510 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:59:57,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:59:57,517 INFO L85 PathProgramCache]: Analyzing trace with hash 341325099, now seen corresponding path program 1 times [2022-07-14 15:59:57,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:59:57,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670756497] [2022-07-14 15:59:57,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:59:57,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:59:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:59:57,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:59:57,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:59:57,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670756497] [2022-07-14 15:59:57,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670756497] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:59:57,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:59:57,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 15:59:57,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858739642] [2022-07-14 15:59:57,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:59:57,597 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 15:59:57,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:59:57,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 15:59:57,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 15:59:57,622 INFO L87 Difference]: Start difference. First operand has 195 states, 194 states have (on average 1.3505154639175259) internal successors, (262), 194 states have internal predecessors, (262), 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 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-07-14 15:59:57,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:59:57,707 INFO L93 Difference]: Finished difference Result 374 states and 490 transitions. [2022-07-14 15:59:57,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 15:59:57,712 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 374 states and 490 transitions. [2022-07-14 15:59:57,725 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 244 [2022-07-14 15:59:57,731 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 374 states to 354 states and 469 transitions. [2022-07-14 15:59:57,732 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 354 [2022-07-14 15:59:57,733 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 354 [2022-07-14 15:59:57,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 354 states and 469 transitions. [2022-07-14 15:59:57,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:59:57,735 INFO L369 hiAutomatonCegarLoop]: Abstraction has 354 states and 469 transitions. [2022-07-14 15:59:57,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states and 469 transitions. [2022-07-14 15:59:57,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 351. [2022-07-14 15:59:57,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 351 states have (on average 1.3247863247863247) internal successors, (465), 350 states have internal predecessors, (465), 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) [2022-07-14 15:59:57,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 465 transitions. [2022-07-14 15:59:57,764 INFO L392 hiAutomatonCegarLoop]: Abstraction has 351 states and 465 transitions. [2022-07-14 15:59:57,764 INFO L374 stractBuchiCegarLoop]: Abstraction has 351 states and 465 transitions. [2022-07-14 15:59:57,764 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:59:57,764 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 351 states and 465 transitions. [2022-07-14 15:59:57,765 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 241 [2022-07-14 15:59:57,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:59:57,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:59:57,766 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:59:57,766 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] [2022-07-14 15:59:57,766 INFO L752 eck$LassoCheckResult]: Stem: 787#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 663#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~8#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 664#L998 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 602#L991 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 603#L1006 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 786#L913 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 699#L885 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 622#L933 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 623#L441-2 [2022-07-14 15:59:57,766 INFO L754 eck$LassoCheckResult]: Loop: 623#L441-2 assume !false; 807#L442 assume test_~splverifierCounter~0#1 < 4; 806#L443 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 804#L451 assume !(0 != test_~tmp~3#1); 802#L451-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 800#L461 assume !(0 != test_~tmp___0~0#1); 798#L461-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 797#L471 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 612#L727 assume { :end_inline_startSystem } true; 613#L479-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 795#L648 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 779#L943 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 665#L520 assume !(0 != ~pumpRunning~0); 666#L520-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 737#L578 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret31#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 819#L552-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 818#L544-3 assume { :end_inline_processEnvironment__wrappee__base } true; 816#L552-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 686#L578-1 assume { :end_inline_processEnvironment } true; 687#L527-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 814#L807 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 812#L954 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 809#L954-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 808#L537 assume { :end_inline_timeShift } true; 623#L441-2 [2022-07-14 15:59:57,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:59:57,767 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-07-14 15:59:57,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:59:57,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577418301] [2022-07-14 15:59:57,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:59:57,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:59:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:57,780 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:59:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:57,796 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:59:57,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:59:57,796 INFO L85 PathProgramCache]: Analyzing trace with hash -945628793, now seen corresponding path program 1 times [2022-07-14 15:59:57,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:59:57,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196444465] [2022-07-14 15:59:57,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:59:57,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:59:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:59:57,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:59:57,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:59:57,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196444465] [2022-07-14 15:59:57,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196444465] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:59:57,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:59:57,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 15:59:57,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171940809] [2022-07-14 15:59:57,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:59:57,810 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 15:59:57,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:59:57,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 15:59:57,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 15:59:57,811 INFO L87 Difference]: Start difference. First operand 351 states and 465 transitions. cyclomatic complexity: 117 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:59:57,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:59:57,894 INFO L93 Difference]: Finished difference Result 493 states and 630 transitions. [2022-07-14 15:59:57,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 15:59:57,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 493 states and 630 transitions. [2022-07-14 15:59:57,897 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2022-07-14 15:59:57,901 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 493 states to 493 states and 630 transitions. [2022-07-14 15:59:57,901 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 493 [2022-07-14 15:59:57,902 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 493 [2022-07-14 15:59:57,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 493 states and 630 transitions. [2022-07-14 15:59:57,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:59:57,907 INFO L369 hiAutomatonCegarLoop]: Abstraction has 493 states and 630 transitions. [2022-07-14 15:59:57,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states and 630 transitions. [2022-07-14 15:59:57,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2022-07-14 15:59:57,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 493 states have (on average 1.2778904665314401) internal successors, (630), 492 states have internal predecessors, (630), 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) [2022-07-14 15:59:57,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 630 transitions. [2022-07-14 15:59:57,920 INFO L392 hiAutomatonCegarLoop]: Abstraction has 493 states and 630 transitions. [2022-07-14 15:59:57,920 INFO L374 stractBuchiCegarLoop]: Abstraction has 493 states and 630 transitions. [2022-07-14 15:59:57,921 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 15:59:57,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 493 states and 630 transitions. [2022-07-14 15:59:57,922 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2022-07-14 15:59:57,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:59:57,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:59:57,923 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:59:57,923 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] [2022-07-14 15:59:57,923 INFO L752 eck$LassoCheckResult]: Stem: 1632#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 1511#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~8#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 1512#L998 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1451#L991 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1452#L1006 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 1631#L913 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 1543#L885 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1472#L933 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1473#L441-2 [2022-07-14 15:59:57,924 INFO L754 eck$LassoCheckResult]: Loop: 1473#L441-2 assume !false; 1747#L442 assume test_~splverifierCounter~0#1 < 4; 1746#L443 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1744#L451 assume !(0 != test_~tmp~3#1); 1742#L451-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1740#L461 assume !(0 != test_~tmp___0~0#1); 1738#L461-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1737#L471 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1464#L727 assume { :end_inline_startSystem } true; 1465#L479-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 1764#L648 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 1623#L943 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1513#L520 assume !(0 != ~pumpRunning~0); 1514#L520-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1526#L578 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret31#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 1527#L552-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1491#L815-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1492#L820-1 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 1551#L697-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1568#L697-5 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 1717#L703-1 processEnvironment__wrappee__methaneQuery_#t~ret31#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~4#1 := processEnvironment__wrappee__methaneQuery_#t~ret31#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret31#1; 1714#L556-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1715#L544-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1758#L552-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1756#L578-1 assume { :end_inline_processEnvironment } true; 1755#L527-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 1754#L807 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 1752#L954 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 1749#L954-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1748#L537 assume { :end_inline_timeShift } true; 1473#L441-2 [2022-07-14 15:59:57,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:59:57,924 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-07-14 15:59:57,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:59:57,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778073464] [2022-07-14 15:59:57,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:59:57,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:59:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:57,936 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:59:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:57,948 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:59:57,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:59:57,949 INFO L85 PathProgramCache]: Analyzing trace with hash -672416385, now seen corresponding path program 1 times [2022-07-14 15:59:57,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:59:57,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68915387] [2022-07-14 15:59:57,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:59:57,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:59:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:59:57,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:59:57,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:59:57,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68915387] [2022-07-14 15:59:57,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68915387] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:59:57,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:59:57,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 15:59:57,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821004010] [2022-07-14 15:59:57,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:59:57,997 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 15:59:57,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:59:57,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 15:59:57,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 15:59:57,999 INFO L87 Difference]: Start difference. First operand 493 states and 630 transitions. cyclomatic complexity: 140 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) [2022-07-14 15:59:58,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:59:58,123 INFO L93 Difference]: Finished difference Result 1421 states and 1776 transitions. [2022-07-14 15:59:58,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 15:59:58,126 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1421 states and 1776 transitions. [2022-07-14 15:59:58,133 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 927 [2022-07-14 15:59:58,138 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1421 states to 1421 states and 1776 transitions. [2022-07-14 15:59:58,139 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1421 [2022-07-14 15:59:58,141 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1421 [2022-07-14 15:59:58,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1421 states and 1776 transitions. [2022-07-14 15:59:58,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:59:58,142 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1421 states and 1776 transitions. [2022-07-14 15:59:58,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states and 1776 transitions. [2022-07-14 15:59:58,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 974. [2022-07-14 15:59:58,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 974 states have (on average 1.2525667351129364) internal successors, (1220), 973 states have internal predecessors, (1220), 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) [2022-07-14 15:59:58,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1220 transitions. [2022-07-14 15:59:58,161 INFO L392 hiAutomatonCegarLoop]: Abstraction has 974 states and 1220 transitions. [2022-07-14 15:59:58,161 INFO L374 stractBuchiCegarLoop]: Abstraction has 974 states and 1220 transitions. [2022-07-14 15:59:58,162 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-14 15:59:58,162 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 974 states and 1220 transitions. [2022-07-14 15:59:58,165 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 690 [2022-07-14 15:59:58,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:59:58,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:59:58,168 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:59:58,168 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, 1, 1] [2022-07-14 15:59:58,168 INFO L752 eck$LassoCheckResult]: Stem: 3591#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 3440#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~8#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 3441#L998 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3381#L991 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 3382#L1006 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 3590#L913 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 3473#L885 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3401#L933 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3402#L441-2 [2022-07-14 15:59:58,175 INFO L754 eck$LassoCheckResult]: Loop: 3402#L441-2 assume !false; 3415#L442 assume test_~splverifierCounter~0#1 < 4; 3416#L443 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 3486#L451 assume !(0 != test_~tmp~3#1); 3542#L451-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 3362#L461 assume !(0 != test_~tmp___0~0#1); 3364#L461-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 3413#L471 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3393#L727 assume { :end_inline_startSystem } true; 3394#L479-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 3428#L648 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 3575#L943 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3442#L520 assume !(0 != ~pumpRunning~0); 3443#L520-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 3457#L578 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret31#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 3458#L552-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 3483#L815-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 3820#L820-1 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 3818#L697-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3815#L697-5 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 3812#L703-1 processEnvironment__wrappee__methaneQuery_#t~ret31#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~4#1 := processEnvironment__wrappee__methaneQuery_#t~ret31#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret31#1; 3810#L556-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3360#L544-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3361#L552-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3429#L578-1 assume { :end_inline_processEnvironment } true; 3462#L527-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 3375#L807 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 3376#L954 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 3538#L648-1 __utac_acc__Specification5_spec__3_#t~ret52#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 3539#L958 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 3493#L954-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3494#L537 assume { :end_inline_timeShift } true; 3402#L441-2 [2022-07-14 15:59:58,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:59:58,176 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-07-14 15:59:58,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:59:58,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992575178] [2022-07-14 15:59:58,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:59:58,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:59:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:58,205 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:59:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:58,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:59:58,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:59:58,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1966147110, now seen corresponding path program 1 times [2022-07-14 15:59:58,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:59:58,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906999016] [2022-07-14 15:59:58,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:59:58,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:59:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:58,223 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:59:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:58,232 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:59:58,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:59:58,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1369589565, now seen corresponding path program 1 times [2022-07-14 15:59:58,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:59:58,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432325326] [2022-07-14 15:59:58,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:59:58,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:59:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:58,262 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:59:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:58,292 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:00,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 04:00:00 BoogieIcfgContainer [2022-07-14 16:00:00,953 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 16:00:00,953 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 16:00:00,953 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 16:00:00,953 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 16:00:00,954 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:59:57" (3/4) ... [2022-07-14 16:00:00,955 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 16:00:01,014 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 16:00:01,014 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 16:00:01,015 INFO L158 Benchmark]: Toolchain (without parser) took 4732.64ms. Allocated memory was 86.0MB in the beginning and 167.8MB in the end (delta: 81.8MB). Free memory was 52.1MB in the beginning and 126.7MB in the end (delta: -74.6MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2022-07-14 16:00:01,015 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 86.0MB. Free memory was 40.7MB in the beginning and 40.7MB in the end (delta: 45.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 16:00:01,020 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.50ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 51.8MB in the beginning and 73.0MB in the end (delta: -21.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-14 16:00:01,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.54ms. Allocated memory is still 107.0MB. Free memory was 73.0MB in the beginning and 69.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 16:00:01,021 INFO L158 Benchmark]: Boogie Preprocessor took 46.18ms. Allocated memory is still 107.0MB. Free memory was 69.1MB in the beginning and 66.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 16:00:01,021 INFO L158 Benchmark]: RCFGBuilder took 590.20ms. Allocated memory is still 107.0MB. Free memory was 66.4MB in the beginning and 71.1MB in the end (delta: -4.8MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2022-07-14 16:00:01,021 INFO L158 Benchmark]: BuchiAutomizer took 3655.81ms. Allocated memory was 107.0MB in the beginning and 167.8MB in the end (delta: 60.8MB). Free memory was 70.8MB in the beginning and 129.8MB in the end (delta: -59.0MB). Peak memory consumption was 74.2MB. Max. memory is 16.1GB. [2022-07-14 16:00:01,022 INFO L158 Benchmark]: Witness Printer took 61.51ms. Allocated memory is still 167.8MB. Free memory was 128.8MB in the beginning and 126.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 16:00:01,024 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 86.0MB. Free memory was 40.7MB in the beginning and 40.7MB in the end (delta: 45.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.50ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 51.8MB in the beginning and 73.0MB in the end (delta: -21.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.54ms. Allocated memory is still 107.0MB. Free memory was 73.0MB in the beginning and 69.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.18ms. Allocated memory is still 107.0MB. Free memory was 69.1MB in the beginning and 66.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 590.20ms. Allocated memory is still 107.0MB. Free memory was 66.4MB in the beginning and 71.1MB in the end (delta: -4.8MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3655.81ms. Allocated memory was 107.0MB in the beginning and 167.8MB in the end (delta: 60.8MB). Free memory was 70.8MB in the beginning and 129.8MB in the end (delta: -59.0MB). Peak memory consumption was 74.2MB. Max. memory is 16.1GB. * Witness Printer took 61.51ms. Allocated memory is still 167.8MB. Free memory was 128.8MB in the beginning and 126.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 974 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 450 StatesRemovedByMinimization, 2 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, 1237 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1237 mSDsluCounter, 2068 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1193 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 875 mSDtfsCounter, 131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 441]: 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@d76c472=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@435711f5=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4254262=0, tmp___0=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@252b904a=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3be24273=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e490801=0, tmp=0, methaneLevelCritical=0, retValue_acc=1, tmp=1, \result=1, tmp=1, \result=1, retValue_acc=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@375b36b1=0, tmp=1, tmp___2=29, \result=0, cleanupTimeShifts=4, tmp=0, switchedOnBeforeTS=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@512af903=0, tmp___0=0, tmp=0, head=0, retValue_acc=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7424a91a=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31e4b271=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51da6f78=29} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 441]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L508] int pumpRunning = 0; [L509] int systemActive = 1; [L732] int waterLevel = 1; [L733] int methaneLevelCritical = 0; [L826] int cleanupTimeShifts = 4; [L927] int switchedOnBeforeTS ; [L904] int retValue_acc ; [L905] int tmp ; [L909] FCALL select_helpers() [L910] FCALL select_features() [L911] CALL, EXPR valid_product() [L1002] int retValue_acc ; [L1005] retValue_acc = 1 [L1006] return (retValue_acc); [L911] RET, EXPR valid_product() [L911] tmp = valid_product() [L913] COND TRUE \read(tmp) [L915] FCALL setup() [L916] CALL runTest() [L894] CALL __utac_acc__Specification5_spec__1() [L932] switchedOnBeforeTS = 0 [L894] RET __utac_acc__Specification5_spec__1() [L895] CALL test() [L432] int splverifierCounter ; [L433] int tmp ; [L434] int tmp___0 ; [L435] int tmp___1 ; [L436] int tmp___2 ; [L439] splverifierCounter = 0 Loop: [L441] COND TRUE 1 [L443] COND TRUE splverifierCounter < 4 [L449] tmp = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp)) [L459] tmp___0 = __VERIFIER_nondet_int() [L461] COND FALSE !(\read(tmp___0)) [L469] tmp___2 = __VERIFIER_nondet_int() [L471] COND TRUE \read(tmp___2) [L473] CALL startSystem() [L726] systemActive = 1 [L473] RET startSystem() [L488] CALL timeShift() [L518] CALL __utac_acc__Specification5_spec__2() [L941] CALL, EXPR isPumpRunning() [L644] int retValue_acc ; [L647] retValue_acc = pumpRunning [L648] return (retValue_acc); [L941] RET, EXPR isPumpRunning() [L941] switchedOnBeforeTS = isPumpRunning() [L518] RET __utac_acc__Specification5_spec__2() [L520] COND FALSE !(\read(pumpRunning)) [L527] COND TRUE \read(systemActive) [L529] CALL processEnvironment() [L575] int tmp ; [L578] COND FALSE !(\read(pumpRunning)) [L593] CALL processEnvironment__wrappee__methaneQuery() [L549] int tmp ; [L552] COND TRUE ! pumpRunning [L554] CALL, EXPR isHighWaterLevel() [L689] int retValue_acc ; [L690] int tmp ; [L691] int tmp___0 ; [L695] CALL, EXPR isHighWaterSensorDry() [L812] int retValue_acc ; [L815] COND TRUE waterLevel < 2 [L816] retValue_acc = 1 [L817] return (retValue_acc); [L695] RET, EXPR isHighWaterSensorDry() [L695] tmp = isHighWaterSensorDry() [L697] COND TRUE \read(tmp) [L698] tmp___0 = 0 [L702] retValue_acc = tmp___0 [L703] return (retValue_acc); [L554] RET, EXPR isHighWaterLevel() [L554] tmp = isHighWaterLevel() [L556] COND FALSE !(\read(tmp)) [L562] FCALL processEnvironment__wrappee__base() [L593] RET processEnvironment__wrappee__methaneQuery() [L529] RET processEnvironment() [L535] CALL __utac_acc__Specification5_spec__3() [L947] int tmp ; [L948] int tmp___0 ; [L952] CALL, EXPR getWaterLevel() [L803] int retValue_acc ; [L806] retValue_acc = waterLevel [L807] return (retValue_acc); [L952] RET, EXPR getWaterLevel() [L952] tmp = getWaterLevel() [L954] COND TRUE tmp != 2 [L956] CALL, EXPR isPumpRunning() [L644] int retValue_acc ; [L647] retValue_acc = pumpRunning [L648] return (retValue_acc); [L956] RET, EXPR isPumpRunning() [L956] tmp___0 = isPumpRunning() [L958] COND FALSE !(\read(tmp___0)) [L535] RET __utac_acc__Specification5_spec__3() [L488] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 16:00:01,073 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)