./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 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_spec1_product58.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 5ed8e4dea18b15d78522f05bcbacefb8bf743c0552ef5a7415602905a04fdc4c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:39:40,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:39:40,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:39:40,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:39:40,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:39:40,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:39:40,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:39:40,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:39:40,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:39:40,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:39:40,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:39:40,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:39:40,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:39:40,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:39:40,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:39:40,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:39:40,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:39:40,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:39:40,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:39:40,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:39:40,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:39:40,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:39:40,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:39:40,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:39:40,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:39:40,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:39:40,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:39:40,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:39:40,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:39:40,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:39:40,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:39:40,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:39:40,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:39:40,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:39:40,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:39:40,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:39:40,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:39:40,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:39:40,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:39:40,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:39:40,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:39:40,676 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:39:40,704 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:39:40,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:39:40,705 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:39:40,705 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:39:40,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:39:40,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:39:40,707 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:39:40,707 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:39:40,707 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:39:40,708 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:39:40,708 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:39:40,708 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:39:40,709 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:39:40,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:39:40,709 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:39:40,709 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:39:40,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:39:40,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:39:40,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:39:40,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:39:40,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:39:40,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:39:40,710 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:39:40,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:39:40,710 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:39:40,710 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:39:40,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:39:40,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:39:40,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:39:40,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:39:40,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:39:40,712 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:39:40,712 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed8e4dea18b15d78522f05bcbacefb8bf743c0552ef5a7415602905a04fdc4c [2021-12-28 09:39:40,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:39:40,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:39:40,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:39:40,991 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:39:40,992 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:39:40,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c [2021-12-28 09:39:41,049 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99acdb93b/368e07e2402c4952b5c5282491c8816f/FLAG55c61e75f [2021-12-28 09:39:41,433 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:39:41,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c [2021-12-28 09:39:41,442 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99acdb93b/368e07e2402c4952b5c5282491c8816f/FLAG55c61e75f [2021-12-28 09:39:41,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99acdb93b/368e07e2402c4952b5c5282491c8816f [2021-12-28 09:39:41,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:39:41,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:39:41,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:39:41,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:39:41,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:39:41,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:39:41" (1/1) ... [2021-12-28 09:39:41,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a32095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:41, skipping insertion in model container [2021-12-28 09:39:41,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:39:41" (1/1) ... [2021-12-28 09:39:41,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:39:41,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:39:41,651 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_spec1_product58.cil.c[1605,1618] [2021-12-28 09:39:41,765 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:39:41,775 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:39:41,784 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_spec1_product58.cil.c[1605,1618] [2021-12-28 09:39:41,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:39:41,848 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:39:41,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:41 WrapperNode [2021-12-28 09:39:41,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:39:41,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:39:41,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:39:41,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:39:41,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:41" (1/1) ... [2021-12-28 09:39:41,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:41" (1/1) ... [2021-12-28 09:39:41,915 INFO L137 Inliner]: procedures = 57, calls = 157, calls flagged for inlining = 54, calls inlined = 96, statements flattened = 728 [2021-12-28 09:39:41,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:39:41,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:39:41,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:39:41,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:39:41,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:41" (1/1) ... [2021-12-28 09:39:41,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:41" (1/1) ... [2021-12-28 09:39:41,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:41" (1/1) ... [2021-12-28 09:39:41,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:41" (1/1) ... [2021-12-28 09:39:41,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:41" (1/1) ... [2021-12-28 09:39:41,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:41" (1/1) ... [2021-12-28 09:39:41,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:41" (1/1) ... [2021-12-28 09:39:41,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:39:41,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:39:41,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:39:41,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:39:41,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:41" (1/1) ... [2021-12-28 09:39:41,964 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:39:41,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:39:41,999 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) [2021-12-28 09:39:42,004 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 [2021-12-28 09:39:42,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:39:42,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:39:42,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:39:42,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:39:42,106 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:39:42,107 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:39:42,534 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:39:42,539 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:39:42,541 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:39:42,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:39:42 BoogieIcfgContainer [2021-12-28 09:39:42,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:39:42,546 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:39:42,546 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:39:42,548 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:39:42,549 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:39:42,549 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:39:41" (1/3) ... [2021-12-28 09:39:42,549 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@350acdda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:39:42, skipping insertion in model container [2021-12-28 09:39:42,550 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:39:42,550 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:41" (2/3) ... [2021-12-28 09:39:42,550 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@350acdda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:39:42, skipping insertion in model container [2021-12-28 09:39:42,550 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:39:42,550 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:39:42" (3/3) ... [2021-12-28 09:39:42,551 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product58.cil.c [2021-12-28 09:39:42,578 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:39:42,578 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:39:42,578 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:39:42,578 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:39:42,579 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:39:42,579 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:39:42,579 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:39:42,579 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:39:42,595 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 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) [2021-12-28 09:39:42,623 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2021-12-28 09:39:42,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:39:42,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:39:42,628 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:42,629 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:42,629 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:39:42,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 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) [2021-12-28 09:39:42,636 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2021-12-28 09:39:42,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:39:42,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:39:42,637 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:42,637 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:42,645 INFO L791 eck$LassoCheckResult]: Stem: 171#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 65#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 8#L615true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 100#L608true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 5#L623true main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 55#L258true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 115#L231true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 102#L536-2true [2021-12-28 09:39:42,645 INFO L793 eck$LassoCheckResult]: Loop: 102#L536-2true assume !false; 124#L537true assume test_~splverifierCounter~0#1 < 4; 160#L538true test_~tmp~7#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 61#L546true assume !(0 != test_~tmp~7#1); 67#L546-2true test_~tmp___0~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 175#L556true assume !(0 != test_~tmp___0~3#1); 34#L556-2true test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 161#L566true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 77#L574true assume 0 != test_~tmp___1~0#1; 84#L574-2true assume { :begin_inline_timeShift } true; 90#L284true assume !(0 != ~pumpRunning~0); 39#L284-2true assume !(0 != ~systemActive~0); 80#L291-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_#t~ret25#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 66#L110-2true __utac_acc__Specification1_spec__1_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret24#1;havoc __utac_acc__Specification1_spec__1_#t~ret24#1; 54#L508true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 51#L508-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 132#L301true assume { :end_inline_timeShift } true; 102#L536-2true [2021-12-28 09:39:42,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:42,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-28 09:39:42,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:42,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720572942] [2021-12-28 09:39:42,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:42,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:42,763 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:42,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:42,790 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:42,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:42,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1659451934, now seen corresponding path program 1 times [2021-12-28 09:39:42,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:42,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389190378] [2021-12-28 09:39:42,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:42,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:42,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:42,802 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:42,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:42,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:42,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1703833758, now seen corresponding path program 1 times [2021-12-28 09:39:42,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:42,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721917694] [2021-12-28 09:39:42,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:42,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:39:42,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:39:42,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:39:42,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721917694] [2021-12-28 09:39:42,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721917694] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:39:42,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:39:42,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:39:42,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059198274] [2021-12-28 09:39:42,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:39:43,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:39:43,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 09:39:43,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 09:39:43,104 INFO L87 Difference]: Start difference. First operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:39:43,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:39:43,171 INFO L93 Difference]: Finished difference Result 184 states and 239 transitions. [2021-12-28 09:39:43,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 09:39:43,176 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 239 transitions. [2021-12-28 09:39:43,182 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2021-12-28 09:39:43,189 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 174 states and 229 transitions. [2021-12-28 09:39:43,190 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 174 [2021-12-28 09:39:43,191 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 174 [2021-12-28 09:39:43,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 174 states and 229 transitions. [2021-12-28 09:39:43,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:39:43,194 INFO L681 BuchiCegarLoop]: Abstraction has 174 states and 229 transitions. [2021-12-28 09:39:43,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states and 229 transitions. [2021-12-28 09:39:43,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2021-12-28 09:39:43,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 174 states have (on average 1.3160919540229885) internal successors, (229), 173 states have internal predecessors, (229), 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) [2021-12-28 09:39:43,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 229 transitions. [2021-12-28 09:39:43,223 INFO L704 BuchiCegarLoop]: Abstraction has 174 states and 229 transitions. [2021-12-28 09:39:43,223 INFO L587 BuchiCegarLoop]: Abstraction has 174 states and 229 transitions. [2021-12-28 09:39:43,223 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:39:43,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states and 229 transitions. [2021-12-28 09:39:43,224 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2021-12-28 09:39:43,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:39:43,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:39:43,224 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:43,224 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:43,224 INFO L791 eck$LassoCheckResult]: Stem: 561#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 486#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 400#L615 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 401#L608 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 391#L623 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 392#L258 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 478#L231 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 526#L536-2 [2021-12-28 09:39:43,225 INFO L793 eck$LassoCheckResult]: Loop: 526#L536-2 assume !false; 527#L537 assume test_~splverifierCounter~0#1 < 4; 539#L538 test_~tmp~7#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 483#L546 assume !(0 != test_~tmp~7#1); 394#L546-2 test_~tmp___0~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 489#L556 assume !(0 != test_~tmp___0~3#1); 448#L556-2 test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 449#L566 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 502#L574 assume 0 != test_~tmp___1~0#1; 503#L574-2 assume { :begin_inline_timeShift } true; 510#L284 assume !(0 != ~pumpRunning~0); 455#L284-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 456#L342 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 481#L316-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 534#L308-3 assume { :end_inline_processEnvironment__wrappee__base } true; 390#L316-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 411#L342-1 assume { :end_inline_processEnvironment } true; 412#L291-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_#t~ret25#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 487#L110-2 __utac_acc__Specification1_spec__1_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret24#1;havoc __utac_acc__Specification1_spec__1_#t~ret24#1; 474#L508 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 436#L508-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 471#L301 assume { :end_inline_timeShift } true; 526#L536-2 [2021-12-28 09:39:43,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:43,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-28 09:39:43,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:43,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992003835] [2021-12-28 09:39:43,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:43,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:43,245 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:43,264 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:43,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:43,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1680076909, now seen corresponding path program 1 times [2021-12-28 09:39:43,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:43,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017664110] [2021-12-28 09:39:43,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:43,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:39:43,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:39:43,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:39:43,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017664110] [2021-12-28 09:39:43,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017664110] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:39:43,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:39:43,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 09:39:43,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954220398] [2021-12-28 09:39:43,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:39:43,280 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-28 09:39:43,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:39:43,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 09:39:43,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 09:39:43,281 INFO L87 Difference]: Start difference. First operand 174 states and 229 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:39:43,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:39:43,325 INFO L93 Difference]: Finished difference Result 236 states and 298 transitions. [2021-12-28 09:39:43,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 09:39:43,325 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 236 states and 298 transitions. [2021-12-28 09:39:43,327 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2021-12-28 09:39:43,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 236 states to 236 states and 298 transitions. [2021-12-28 09:39:43,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 236 [2021-12-28 09:39:43,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 236 [2021-12-28 09:39:43,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 236 states and 298 transitions. [2021-12-28 09:39:43,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:39:43,330 INFO L681 BuchiCegarLoop]: Abstraction has 236 states and 298 transitions. [2021-12-28 09:39:43,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states and 298 transitions. [2021-12-28 09:39:43,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2021-12-28 09:39:43,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 236 states have (on average 1.2627118644067796) internal successors, (298), 235 states have internal predecessors, (298), 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) [2021-12-28 09:39:43,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 298 transitions. [2021-12-28 09:39:43,336 INFO L704 BuchiCegarLoop]: Abstraction has 236 states and 298 transitions. [2021-12-28 09:39:43,336 INFO L587 BuchiCegarLoop]: Abstraction has 236 states and 298 transitions. [2021-12-28 09:39:43,336 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:39:43,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 236 states and 298 transitions. [2021-12-28 09:39:43,337 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2021-12-28 09:39:43,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:39:43,338 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:39:43,338 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:43,338 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:43,338 INFO L791 eck$LassoCheckResult]: Stem: 989#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 907#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 813#L615 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 814#L608 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 807#L623 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 808#L258 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 894#L231 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 947#L536-2 [2021-12-28 09:39:43,339 INFO L793 eck$LassoCheckResult]: Loop: 947#L536-2 assume !false; 948#L537 assume test_~splverifierCounter~0#1 < 4; 960#L538 test_~tmp~7#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 902#L546 assume !(0 != test_~tmp~7#1); 810#L546-2 test_~tmp___0~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 909#L556 assume !(0 != test_~tmp___0~3#1); 863#L556-2 test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 864#L566 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 921#L574 assume 0 != test_~tmp___1~0#1; 922#L574-2 assume { :begin_inline_timeShift } true; 931#L284 assume !(0 != ~pumpRunning~0); 872#L284-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 873#L342 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 901#L316-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret22#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 823#L150-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 824#L155-1 isHighWaterLevel_#t~ret22#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret22#1;havoc isHighWaterLevel_#t~ret22#1; 930#L462-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 978#L462-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 992#L468-1 processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; 979#L320-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 937#L308-2 assume { :end_inline_processEnvironment__wrappee__base } true; 806#L316-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 827#L342-1 assume { :end_inline_processEnvironment } true; 828#L291-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_#t~ret25#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 908#L110-2 __utac_acc__Specification1_spec__1_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret24#1;havoc __utac_acc__Specification1_spec__1_#t~ret24#1; 892#L508 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 850#L508-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 889#L301 assume { :end_inline_timeShift } true; 947#L536-2 [2021-12-28 09:39:43,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:43,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-28 09:39:43,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:43,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528058040] [2021-12-28 09:39:43,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:43,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:43,349 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:43,359 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:43,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:43,360 INFO L85 PathProgramCache]: Analyzing trace with hash -44819893, now seen corresponding path program 1 times [2021-12-28 09:39:43,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:43,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423455127] [2021-12-28 09:39:43,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:43,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:43,366 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:43,372 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:43,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:43,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1295801841, now seen corresponding path program 1 times [2021-12-28 09:39:43,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:43,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016963277] [2021-12-28 09:39:43,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:43,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:43,387 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:43,408 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:46,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:39:46 BoogieIcfgContainer [2021-12-28 09:39:46,044 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:39:46,044 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:39:46,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:39:46,044 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:39:46,045 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:39:42" (3/4) ... [2021-12-28 09:39:46,046 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:39:46,078 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:39:46,079 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:39:46,079 INFO L158 Benchmark]: Toolchain (without parser) took 4601.59ms. Allocated memory was 58.7MB in the beginning and 123.7MB in the end (delta: 65.0MB). Free memory was 36.5MB in the beginning and 32.6MB in the end (delta: 4.0MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. [2021-12-28 09:39:46,080 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 58.7MB. Free memory was 41.2MB in the beginning and 41.1MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:39:46,080 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.60ms. Allocated memory is still 58.7MB. Free memory was 36.3MB in the beginning and 34.0MB in the end (delta: 2.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-28 09:39:46,080 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.56ms. Allocated memory is still 58.7MB. Free memory was 34.0MB in the beginning and 30.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 09:39:46,081 INFO L158 Benchmark]: Boogie Preprocessor took 32.74ms. Allocated memory is still 58.7MB. Free memory was 30.3MB in the beginning and 27.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:39:46,083 INFO L158 Benchmark]: RCFGBuilder took 595.49ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 27.7MB in the beginning and 54.9MB in the end (delta: -27.2MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2021-12-28 09:39:46,084 INFO L158 Benchmark]: BuchiAutomizer took 3497.73ms. Allocated memory was 75.5MB in the beginning and 123.7MB in the end (delta: 48.2MB). Free memory was 54.6MB in the beginning and 35.6MB in the end (delta: 18.9MB). Peak memory consumption was 67.9MB. Max. memory is 16.1GB. [2021-12-28 09:39:46,084 INFO L158 Benchmark]: Witness Printer took 34.71ms. Allocated memory is still 123.7MB. Free memory was 35.6MB in the beginning and 32.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:39:46,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 58.7MB. Free memory was 41.2MB in the beginning and 41.1MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.60ms. Allocated memory is still 58.7MB. Free memory was 36.3MB in the beginning and 34.0MB in the end (delta: 2.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.56ms. Allocated memory is still 58.7MB. Free memory was 34.0MB in the beginning and 30.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.74ms. Allocated memory is still 58.7MB. Free memory was 30.3MB in the beginning and 27.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 595.49ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 27.7MB in the beginning and 54.9MB in the end (delta: -27.2MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 3497.73ms. Allocated memory was 75.5MB in the beginning and 123.7MB in the end (delta: 48.2MB). Free memory was 54.6MB in the beginning and 35.6MB in the end (delta: 18.9MB). Peak memory consumption was 67.9MB. Max. memory is 16.1GB. * Witness Printer took 34.71ms. Allocated memory is still 123.7MB. Free memory was 35.6MB in the beginning and 32.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 236 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 236 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1088 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1088 mSDsluCounter, 554 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 106 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 448 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 536]: 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@155ff728=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, NULL=1, tmp___0=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57aeae59=0, retValue_acc=0, \result=1, \result=1, tmp=1, retValue_acc=0, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2635f7e4=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ff0cc84=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ad6227e=0, tmp=1, \result=0, tmp=0, head=0, tmp___1=29, retValue_acc=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79897e06=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@442ec052=0, tmp=0, tmp=0, tmp___0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f9a1ee0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ca9e16=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d126c9b=29, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 536]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L67] int waterLevel = 1; [L68] int methaneLevelCritical = 0; [L170] int cleanupTimeShifts = 4; [L276] int pumpRunning = 0; [L277] int systemActive = 1; [L797] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L249] int retValue_acc ; [L250] int tmp ; [L254] FCALL select_helpers() [L255] FCALL select_features() [L256] CALL, EXPR valid_product() [L619] int retValue_acc ; [L622] retValue_acc = 1 [L623] return (retValue_acc); [L256] RET, EXPR valid_product() [L256] tmp = valid_product() [L258] COND TRUE \read(tmp) [L260] FCALL setup() [L261] CALL runTest() [L240] CALL test() [L527] int splverifierCounter ; [L528] int tmp ; [L529] int tmp___0 ; [L530] int tmp___1 ; [L531] int tmp___2 ; [L534] splverifierCounter = 0 Loop: [L536] COND TRUE 1 [L538] COND TRUE splverifierCounter < 4 [L544] tmp = __VERIFIER_nondet_int() [L546] COND FALSE !(\read(tmp)) [L554] tmp___0 = __VERIFIER_nondet_int() [L556] COND FALSE !(\read(tmp___0)) [L564] tmp___2 = __VERIFIER_nondet_int() [L566] COND FALSE !(\read(tmp___2)) [L572] tmp___1 = __VERIFIER_nondet_int() [L574] COND TRUE \read(tmp___1) [L581] CALL timeShift() [L284] COND FALSE !(\read(pumpRunning)) [L291] COND TRUE \read(systemActive) [L293] CALL processEnvironment() [L339] int tmp ; [L342] COND FALSE !(\read(pumpRunning)) [L357] CALL processEnvironment__wrappee__highWaterSensor() [L313] int tmp ; [L316] COND TRUE ! pumpRunning [L318] CALL, EXPR isHighWaterLevel() [L454] int retValue_acc ; [L455] int tmp ; [L456] int tmp___0 ; [L460] CALL, EXPR isHighWaterSensorDry() [L147] int retValue_acc ; [L150] COND TRUE waterLevel < 2 [L151] retValue_acc = 1 [L152] return (retValue_acc); [L460] RET, EXPR isHighWaterSensorDry() [L460] tmp = isHighWaterSensorDry() [L462] COND TRUE \read(tmp) [L463] tmp___0 = 0 [L467] retValue_acc = tmp___0 [L468] return (retValue_acc); [L318] RET, EXPR isHighWaterLevel() [L318] tmp = isHighWaterLevel() [L320] COND FALSE !(\read(tmp)) [L326] FCALL processEnvironment__wrappee__base() [L357] RET processEnvironment__wrappee__highWaterSensor() [L293] RET processEnvironment() [L299] CALL __utac_acc__Specification1_spec__1() [L501] int tmp ; [L502] int tmp___0 ; [L506] CALL, EXPR isMethaneLevelCritical() [L106] int retValue_acc ; [L109] retValue_acc = methaneLevelCritical [L110] return (retValue_acc); [L506] RET, EXPR isMethaneLevelCritical() [L506] tmp = isMethaneLevelCritical() [L508] COND FALSE !(\read(tmp)) [L299] RET __utac_acc__Specification1_spec__1() [L581] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-28 09:39:46,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)