./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product01.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_spec5_product01.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 50277b719902a0a4cf598e31b0e94effb6529c58c9c4208972d6754269dc97f6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:41:34,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:41:34,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:41:34,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:41:34,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:41:34,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:41:34,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:41:34,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:41:34,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:41:34,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:41:34,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:41:34,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:41:34,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:41:34,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:41:34,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:41:34,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:41:34,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:41:34,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:41:34,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:41:34,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:41:34,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:41:34,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:41:34,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:41:34,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:41:34,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:41:34,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:41:34,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:41:34,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:41:34,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:41:34,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:41:34,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:41:34,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:41:34,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:41:34,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:41:34,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:41:34,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:41:34,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:41:34,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:41:34,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:41:34,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:41:34,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:41:34,713 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:41:34,742 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:41:34,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:41:34,743 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:41:34,744 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:41:34,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:41:34,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:41:34,746 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:41:34,746 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:41:34,746 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:41:34,746 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:41:34,747 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:41:34,747 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:41:34,747 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:41:34,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:41:34,747 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:41:34,748 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:41:34,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:41:34,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:41:34,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:41:34,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:41:34,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:41:34,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:41:34,749 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:41:34,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:41:34,749 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:41:34,749 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:41:34,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:41:34,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:41:34,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:41:34,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:41:34,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:41:34,751 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:41:34,751 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50277b719902a0a4cf598e31b0e94effb6529c58c9c4208972d6754269dc97f6 [2021-12-28 09:41:35,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:41:35,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:41:35,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:41:35,052 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:41:35,052 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:41:35,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product01.cil.c [2021-12-28 09:41:35,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dee1d79f4/ae0ab14b177943f0a049d73b003a2066/FLAGa9585dd86 [2021-12-28 09:41:35,484 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:41:35,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product01.cil.c [2021-12-28 09:41:35,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dee1d79f4/ae0ab14b177943f0a049d73b003a2066/FLAGa9585dd86 [2021-12-28 09:41:35,509 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dee1d79f4/ae0ab14b177943f0a049d73b003a2066 [2021-12-28 09:41:35,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:41:35,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:41:35,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:41:35,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:41:35,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:41:35,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:41:35" (1/1) ... [2021-12-28 09:41:35,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@668f1484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:35, skipping insertion in model container [2021-12-28 09:41:35,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:41:35" (1/1) ... [2021-12-28 09:41:35,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:41:35,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:41:35,735 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_product01.cil.c[17147,17160] [2021-12-28 09:41:35,736 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:41:35,742 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:41:35,793 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_product01.cil.c[17147,17160] [2021-12-28 09:41:35,794 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:41:35,807 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:41:35,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:35 WrapperNode [2021-12-28 09:41:35,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:41:35,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:41:35,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:41:35,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:41:35,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:35" (1/1) ... [2021-12-28 09:41:35,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:35" (1/1) ... [2021-12-28 09:41:35,850 INFO L137 Inliner]: procedures = 51, calls = 147, calls flagged for inlining = 44, calls inlined = 39, statements flattened = 318 [2021-12-28 09:41:35,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:41:35,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:41:35,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:41:35,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:41:35,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:35" (1/1) ... [2021-12-28 09:41:35,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:35" (1/1) ... [2021-12-28 09:41:35,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:35" (1/1) ... [2021-12-28 09:41:35,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:35" (1/1) ... [2021-12-28 09:41:35,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:35" (1/1) ... [2021-12-28 09:41:35,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:35" (1/1) ... [2021-12-28 09:41:35,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:35" (1/1) ... [2021-12-28 09:41:35,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:41:35,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:41:35,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:41:35,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:41:35,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:35" (1/1) ... [2021-12-28 09:41:35,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:41:35,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:41:35,911 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 09:41:35,913 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 09:41:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:41:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:41:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:41:35,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:41:36,001 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:41:36,002 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:41:36,245 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:41:36,250 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:41:36,250 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:41:36,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:41:36 BoogieIcfgContainer [2021-12-28 09:41:36,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:41:36,253 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:41:36,253 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:41:36,255 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:41:36,255 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:41:36,256 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:41:35" (1/3) ... [2021-12-28 09:41:36,256 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b435ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:41:36, skipping insertion in model container [2021-12-28 09:41:36,256 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:41:36,256 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:35" (2/3) ... [2021-12-28 09:41:36,257 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b435ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:41:36, skipping insertion in model container [2021-12-28 09:41:36,257 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:41:36,257 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:41:36" (3/3) ... [2021-12-28 09:41:36,258 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product01.cil.c [2021-12-28 09:41:36,286 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:41:36,287 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:41:36,287 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:41:36,287 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:41:36,287 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:41:36,287 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:41:36,287 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:41:36,287 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:41:36,298 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 85 states, 84 states have (on average 1.369047619047619) internal successors, (115), 84 states have internal predecessors, (115), 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 09:41:36,320 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 52 [2021-12-28 09:41:36,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:41:36,320 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:41:36,325 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:36,325 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:36,325 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:41:36,327 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 85 states, 84 states have (on average 1.369047619047619) internal successors, (115), 84 states have internal predecessors, (115), 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 09:41:36,339 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 52 [2021-12-28 09:41:36,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:41:36,340 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:41:36,340 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:36,341 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:36,348 INFO L791 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 46#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~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 72#L262true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 27#L255true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 14#L270true 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; 19#L226true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 11#L197true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 73#L649true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 50#L702-2true [2021-12-28 09:41:36,349 INFO L793 eck$LassoCheckResult]: Loop: 50#L702-2true assume !false; 20#L703true assume test_~splverifierCounter~0#1 < 4; 68#L704true test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 79#L712true assume !(0 != test_~tmp~5#1); 71#L712-2true test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 74#L722true assume !(0 != test_~tmp___0~1#1); 81#L722-2true test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 34#L732true assume 0 != test_~tmp___2~0#1; 59#L738-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 66#L828true __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 36#L659true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 57#L769true assume !(0 != ~pumpRunning~0); 23#L769-2true assume !(0 != ~systemActive~0); 8#L776-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 53#L131true __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 60#L670true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 24#L670-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 25#L786true assume { :end_inline_timeShift } true; 50#L702-2true [2021-12-28 09:41:36,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:36,360 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-28 09:41:36,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:36,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996781082] [2021-12-28 09:41:36,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:36,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:36,495 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:36,541 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:36,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:36,548 INFO L85 PathProgramCache]: Analyzing trace with hash -638817652, now seen corresponding path program 1 times [2021-12-28 09:41:36,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:36,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130875284] [2021-12-28 09:41:36,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:36,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:36,569 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:36,576 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:36,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:36,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1978170059, now seen corresponding path program 1 times [2021-12-28 09:41:36,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:36,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364139035] [2021-12-28 09:41:36,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:36,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:41:36,686 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 09:41:36,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:41:36,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364139035] [2021-12-28 09:41:36,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364139035] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:41:36,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:41:36,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:41:36,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350104793] [2021-12-28 09:41:36,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:41:36,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:41:36,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 09:41:36,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 09:41:36,894 INFO L87 Difference]: Start difference. First operand has 85 states, 84 states have (on average 1.369047619047619) internal successors, (115), 84 states have internal predecessors, (115), 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 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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 09:41:36,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:41:36,945 INFO L93 Difference]: Finished difference Result 82 states and 101 transitions. [2021-12-28 09:41:36,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 09:41:36,949 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 101 transitions. [2021-12-28 09:41:36,954 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 48 [2021-12-28 09:41:36,959 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 72 states and 91 transitions. [2021-12-28 09:41:36,960 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 72 [2021-12-28 09:41:36,960 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72 [2021-12-28 09:41:36,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 91 transitions. [2021-12-28 09:41:36,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:41:36,962 INFO L681 BuchiCegarLoop]: Abstraction has 72 states and 91 transitions. [2021-12-28 09:41:36,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 91 transitions. [2021-12-28 09:41:36,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-12-28 09:41:36,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 72 states have (on average 1.2638888888888888) internal successors, (91), 71 states have internal predecessors, (91), 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 09:41:36,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 91 transitions. [2021-12-28 09:41:36,989 INFO L704 BuchiCegarLoop]: Abstraction has 72 states and 91 transitions. [2021-12-28 09:41:36,989 INFO L587 BuchiCegarLoop]: Abstraction has 72 states and 91 transitions. [2021-12-28 09:41:36,990 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:41:36,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states and 91 transitions. [2021-12-28 09:41:36,993 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 48 [2021-12-28 09:41:36,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:41:36,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:41:36,995 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:36,995 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] [2021-12-28 09:41:36,995 INFO L791 eck$LassoCheckResult]: Stem: 253#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 243#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~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 244#L262 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 223#L255 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 206#L270 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; 207#L226 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 198#L197 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 199#L649 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 218#L702-2 [2021-12-28 09:41:36,996 INFO L793 eck$LassoCheckResult]: Loop: 218#L702-2 assume !false; 211#L703 assume test_~splverifierCounter~0#1 < 4; 212#L704 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 254#L712 assume !(0 != test_~tmp~5#1); 245#L712-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 255#L722 assume !(0 != test_~tmp___0~1#1); 256#L722-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 232#L732 assume 0 != test_~tmp___2~0#1; 233#L738-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 251#L828 __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 236#L659 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 237#L769 assume !(0 != ~pumpRunning~0); 214#L769-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 215#L793 assume { :end_inline_processEnvironment } true; 192#L776-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 193#L131 __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 247#L670 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 216#L670-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 217#L786 assume { :end_inline_timeShift } true; 218#L702-2 [2021-12-28 09:41:36,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:36,997 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-28 09:41:36,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:36,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142135891] [2021-12-28 09:41:36,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:36,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:37,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:37,017 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:37,030 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:37,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:37,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1995577109, now seen corresponding path program 1 times [2021-12-28 09:41:37,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:37,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506495061] [2021-12-28 09:41:37,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:37,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:37,036 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:37,040 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:37,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:37,041 INFO L85 PathProgramCache]: Analyzing trace with hash -565828766, now seen corresponding path program 1 times [2021-12-28 09:41:37,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:37,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500708596] [2021-12-28 09:41:37,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:37,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:41:37,094 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 09:41:37,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:41:37,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500708596] [2021-12-28 09:41:37,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500708596] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:41:37,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:41:37,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 09:41:37,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053168412] [2021-12-28 09:41:37,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:41:37,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:41:37,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 09:41:37,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 09:41:37,199 INFO L87 Difference]: Start difference. First operand 72 states and 91 transitions. cyclomatic complexity: 21 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:41:37,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:41:37,273 INFO L93 Difference]: Finished difference Result 186 states and 236 transitions. [2021-12-28 09:41:37,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 09:41:37,274 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 186 states and 236 transitions. [2021-12-28 09:41:37,276 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 116 [2021-12-28 09:41:37,277 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 186 states to 186 states and 236 transitions. [2021-12-28 09:41:37,277 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 186 [2021-12-28 09:41:37,278 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 186 [2021-12-28 09:41:37,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 186 states and 236 transitions. [2021-12-28 09:41:37,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:41:37,279 INFO L681 BuchiCegarLoop]: Abstraction has 186 states and 236 transitions. [2021-12-28 09:41:37,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states and 236 transitions. [2021-12-28 09:41:37,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 135. [2021-12-28 09:41:37,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 135 states have (on average 1.2518518518518518) internal successors, (169), 134 states have internal predecessors, (169), 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 09:41:37,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 169 transitions. [2021-12-28 09:41:37,285 INFO L704 BuchiCegarLoop]: Abstraction has 135 states and 169 transitions. [2021-12-28 09:41:37,285 INFO L587 BuchiCegarLoop]: Abstraction has 135 states and 169 transitions. [2021-12-28 09:41:37,285 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:41:37,285 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states and 169 transitions. [2021-12-28 09:41:37,286 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 95 [2021-12-28 09:41:37,286 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:41:37,286 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:41:37,286 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:37,287 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] [2021-12-28 09:41:37,287 INFO L791 eck$LassoCheckResult]: Stem: 532#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 520#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~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 521#L262 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 496#L255 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 476#L270 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; 477#L226 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 471#L197 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 472#L649 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 493#L702-2 [2021-12-28 09:41:37,287 INFO L793 eck$LassoCheckResult]: Loop: 493#L702-2 assume !false; 483#L703 assume test_~splverifierCounter~0#1 < 4; 484#L704 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 556#L712 assume !(0 != test_~tmp~5#1); 557#L712-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 572#L722 assume !(0 != test_~tmp___0~1#1); 538#L722-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 508#L732 assume 0 != test_~tmp___2~0#1; 509#L738-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 529#L828 __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 512#L659 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 513#L769 assume !(0 != ~pumpRunning~0); 488#L769-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 489#L793 assume { :end_inline_processEnvironment } true; 467#L776-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 468#L131 __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 525#L670 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 530#L828-1 __utac_acc__Specification5_spec__3_#t~ret36#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret36#1;havoc __utac_acc__Specification5_spec__3_#t~ret36#1; 497#L674 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 498#L670-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 492#L786 assume { :end_inline_timeShift } true; 493#L702-2 [2021-12-28 09:41:37,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:37,288 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-28 09:41:37,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:37,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474181744] [2021-12-28 09:41:37,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:37,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:37,296 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:37,305 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:37,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:37,306 INFO L85 PathProgramCache]: Analyzing trace with hash 2081679974, now seen corresponding path program 1 times [2021-12-28 09:41:37,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:37,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787722999] [2021-12-28 09:41:37,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:37,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:37,319 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:37,324 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:37,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:37,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1680302877, now seen corresponding path program 1 times [2021-12-28 09:41:37,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:37,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204437365] [2021-12-28 09:41:37,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:37,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:37,339 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:37,352 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:39,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:41:39 BoogieIcfgContainer [2021-12-28 09:41:39,669 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:41:39,670 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:41:39,670 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:41:39,670 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:41:39,670 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:41:36" (3/4) ... [2021-12-28 09:41:39,672 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:41:39,700 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:41:39,700 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:41:39,701 INFO L158 Benchmark]: Toolchain (without parser) took 4189.03ms. Allocated memory was 60.8MB in the beginning and 121.6MB in the end (delta: 60.8MB). Free memory was 44.4MB in the beginning and 93.5MB in the end (delta: -49.1MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2021-12-28 09:41:39,701 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 46.1MB. Free memory was 28.3MB in the beginning and 28.2MB in the end (delta: 50.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:41:39,701 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.05ms. Allocated memory is still 60.8MB. Free memory was 44.3MB in the beginning and 36.4MB in the end (delta: 7.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-28 09:41:39,702 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.11ms. Allocated memory is still 60.8MB. Free memory was 36.2MB in the beginning and 33.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 09:41:39,702 INFO L158 Benchmark]: Boogie Preprocessor took 23.25ms. Allocated memory is still 60.8MB. Free memory was 33.6MB in the beginning and 32.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:41:39,702 INFO L158 Benchmark]: RCFGBuilder took 372.77ms. Allocated memory is still 60.8MB. Free memory was 31.9MB in the beginning and 31.5MB in the end (delta: 364.5kB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2021-12-28 09:41:39,703 INFO L158 Benchmark]: BuchiAutomizer took 3416.72ms. Allocated memory was 60.8MB in the beginning and 121.6MB in the end (delta: 60.8MB). Free memory was 31.3MB in the beginning and 96.6MB in the end (delta: -65.3MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2021-12-28 09:41:39,703 INFO L158 Benchmark]: Witness Printer took 30.76ms. Allocated memory is still 121.6MB. Free memory was 96.6MB in the beginning and 93.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:41:39,704 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 46.1MB. Free memory was 28.3MB in the beginning and 28.2MB in the end (delta: 50.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.05ms. Allocated memory is still 60.8MB. Free memory was 44.3MB in the beginning and 36.4MB in the end (delta: 7.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.11ms. Allocated memory is still 60.8MB. Free memory was 36.2MB in the beginning and 33.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.25ms. Allocated memory is still 60.8MB. Free memory was 33.6MB in the beginning and 32.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 372.77ms. Allocated memory is still 60.8MB. Free memory was 31.9MB in the beginning and 31.5MB in the end (delta: 364.5kB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3416.72ms. Allocated memory was 60.8MB in the beginning and 121.6MB in the end (delta: 60.8MB). Free memory was 31.3MB in the beginning and 96.6MB in the end (delta: -65.3MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. * Witness Printer took 30.76ms. Allocated memory is still 121.6MB. Free memory was 96.6MB in the beginning and 93.5MB 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 135 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. 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, 51 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 135 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 622 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 622 mSDsluCounter, 463 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 256 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 207 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 702]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d6d9739=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41cc7f51=0, NULL=1, retValue_acc=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cdd443f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@754224a7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1152a5dd=0, \result=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@610a2e4a=29, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@232b08cc=0, tmp___2=29, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=1, \result=0, tmp___0=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bf02d4f=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 702]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L136] int cleanupTimeShifts = 4; [L444] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L643] int switchedOnBeforeTS ; [L759] int pumpRunning = 0; [L760] int systemActive = 1; [L217] int retValue_acc ; [L218] int tmp ; [L222] FCALL select_helpers() [L223] FCALL select_features() [L224] CALL, EXPR valid_product() [L266] int retValue_acc ; [L269] retValue_acc = 1 [L270] return (retValue_acc); [L224] RET, EXPR valid_product() [L224] tmp = valid_product() [L226] COND TRUE \read(tmp) [L228] FCALL setup() [L229] CALL runTest() [L207] CALL __utac_acc__Specification5_spec__1() [L648] switchedOnBeforeTS = 0 [L207] RET __utac_acc__Specification5_spec__1() [L208] CALL test() [L693] int splverifierCounter ; [L694] int tmp ; [L695] int tmp___0 ; [L696] int tmp___1 ; [L697] int tmp___2 ; [L700] splverifierCounter = 0 Loop: [L702] COND TRUE 1 [L704] COND TRUE splverifierCounter < 4 [L710] tmp = __VERIFIER_nondet_int() [L712] COND FALSE !(\read(tmp)) [L720] tmp___0 = __VERIFIER_nondet_int() [L722] COND FALSE !(\read(tmp___0)) [L730] tmp___2 = __VERIFIER_nondet_int() [L732] COND TRUE \read(tmp___2) [L745] CALL timeShift() [L767] CALL __utac_acc__Specification5_spec__2() [L657] CALL, EXPR isPumpRunning() [L824] int retValue_acc ; [L827] retValue_acc = pumpRunning [L828] return (retValue_acc); [L657] RET, EXPR isPumpRunning() [L657] switchedOnBeforeTS = isPumpRunning() [L767] RET __utac_acc__Specification5_spec__2() [L769] COND FALSE !(\read(pumpRunning)) [L776] COND TRUE \read(systemActive) [L778] FCALL processEnvironment() [L784] CALL __utac_acc__Specification5_spec__3() [L663] int tmp ; [L664] int tmp___0 ; [L668] CALL, EXPR getWaterLevel() [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L668] RET, EXPR getWaterLevel() [L668] tmp = getWaterLevel() [L670] COND TRUE tmp != 2 [L672] CALL, EXPR isPumpRunning() [L824] int retValue_acc ; [L827] retValue_acc = pumpRunning [L828] return (retValue_acc); [L672] RET, EXPR isPumpRunning() [L672] tmp___0 = isPumpRunning() [L674] COND FALSE !(\read(tmp___0)) [L784] RET __utac_acc__Specification5_spec__3() [L745] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-28 09:41:39,736 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)