./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product45.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product45.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 9a8ef44eebf77bb9089ba7256f54c924b643d97224560b14ff4a2b7df3dcc9e0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 15:57:07,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:57:07,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:57:07,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:57:07,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:57:07,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:57:07,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:57:07,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:57:07,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:57:07,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:57:07,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:57:07,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:57:07,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:57:07,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:57:07,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:57:07,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:57:07,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:57:07,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:57:07,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:57:07,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:57:07,777 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:57:07,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:57:07,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:57:07,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:57:07,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:57:07,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:57:07,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:57:07,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:57:07,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:57:07,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:57:07,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:57:07,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:57:07,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:57:07,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:57:07,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:57:07,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:57:07,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:57:07,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:57:07,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:57:07,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:57:07,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:57:07,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:57:07,799 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 15:57:07,819 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:57:07,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:57:07,819 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:57:07,820 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:57:07,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:57:07,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:57:07,821 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:57:07,821 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:57:07,821 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:57:07,821 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:57:07,821 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:57:07,821 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:57:07,822 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:57:07,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:57:07,822 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 15:57:07,822 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:57:07,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:57:07,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 15:57:07,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:57:07,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:57:07,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:57:07,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:57:07,825 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 15:57:07,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:57:07,825 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:57:07,825 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:57:07,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:57:07,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:57:07,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:57:07,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:57:07,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:57:07,828 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:57:07,828 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a8ef44eebf77bb9089ba7256f54c924b643d97224560b14ff4a2b7df3dcc9e0 [2022-07-14 15:57:08,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:57:08,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:57:08,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:57:08,041 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:57:08,042 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:57:08,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product45.cil.c [2022-07-14 15:57:08,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7740c2722/0f4988937a1a4befb92fffa1f1608bb7/FLAG90309caaf [2022-07-14 15:57:08,406 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:57:08,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product45.cil.c [2022-07-14 15:57:08,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7740c2722/0f4988937a1a4befb92fffa1f1608bb7/FLAG90309caaf [2022-07-14 15:57:08,820 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7740c2722/0f4988937a1a4befb92fffa1f1608bb7 [2022-07-14 15:57:08,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:57:08,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:57:08,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:57:08,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:57:08,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:57:08,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:57:08" (1/1) ... [2022-07-14 15:57:08,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657d1a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:08, skipping insertion in model container [2022-07-14 15:57:08,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:57:08" (1/1) ... [2022-07-14 15:57:08,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:57:08,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:57:09,024 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_product45.cil.c[3064,3077] [2022-07-14 15:57:09,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:57:09,125 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:57:09,139 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_product45.cil.c[3064,3077] [2022-07-14 15:57:09,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:57:09,184 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:57:09,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:09 WrapperNode [2022-07-14 15:57:09,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:57:09,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:57:09,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:57:09,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:57:09,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:09" (1/1) ... [2022-07-14 15:57:09,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:09" (1/1) ... [2022-07-14 15:57:09,258 INFO L137 Inliner]: procedures = 54, calls = 155, calls flagged for inlining = 52, calls inlined = 95, statements flattened = 707 [2022-07-14 15:57:09,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:57:09,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:57:09,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:57:09,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:57:09,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:09" (1/1) ... [2022-07-14 15:57:09,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:09" (1/1) ... [2022-07-14 15:57:09,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:09" (1/1) ... [2022-07-14 15:57:09,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:09" (1/1) ... [2022-07-14 15:57:09,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:09" (1/1) ... [2022-07-14 15:57:09,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:09" (1/1) ... [2022-07-14 15:57:09,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:09" (1/1) ... [2022-07-14 15:57:09,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:57:09,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:57:09,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:57:09,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:57:09,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:09" (1/1) ... [2022-07-14 15:57:09,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:57:09,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:57:09,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:57:09,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-14 15:57:09,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 15:57:09,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 15:57:09,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:57:09,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:57:09,471 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:57:09,472 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:57:09,896 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:57:09,904 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:57:09,907 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 15:57:09,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:09 BoogieIcfgContainer [2022-07-14 15:57:09,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:57:09,911 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:57:09,911 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:57:09,914 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:57:09,914 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:09,914 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:57:08" (1/3) ... [2022-07-14 15:57:09,915 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d9c5dd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:57:09, skipping insertion in model container [2022-07-14 15:57:09,916 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:09,916 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:09" (2/3) ... [2022-07-14 15:57:09,916 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d9c5dd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:57:09, skipping insertion in model container [2022-07-14 15:57:09,916 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:09,916 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:09" (3/3) ... [2022-07-14 15:57:09,917 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product45.cil.c [2022-07-14 15:57:09,976 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:57:09,976 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:57:09,976 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:57:09,976 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:57:09,976 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:57:09,977 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:57:09,977 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:57:09,977 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:57:09,981 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 180 states, 179 states have (on average 1.3575418994413408) internal successors, (243), 179 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:57:10,004 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2022-07-14 15:57:10,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:10,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:10,011 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:10,011 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:10,011 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:57:10,012 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 180 states, 179 states have (on average 1.3575418994413408) internal successors, (243), 179 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:57:10,020 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2022-07-14 15:57:10,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:10,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:10,021 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:10,021 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:10,024 INFO L752 eck$LassoCheckResult]: Stem: 168#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;~pumpRunning~0 := 0;~systemActive~0 := 1; 51#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret11#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 64#L311true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 133#L304true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 181#L319true main_#t~ret11#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret11#1;havoc main_#t~ret11#1; 157#L275true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 179#L248true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#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; 124#L700-2true [2022-07-14 15:57:10,025 INFO L754 eck$LassoCheckResult]: Loop: 124#L700-2true assume !false; 170#L701true assume test_~splverifierCounter~0#1 < 4; 32#L702true test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 95#L710true assume !(0 != test_~tmp~5#1); 151#L710-2true test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 39#L720true assume !(0 != test_~tmp___0~1#1); 161#L720-2true test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 74#L730true assume 0 != test_~tmp___2~0#1; 63#L736-2true assume { :begin_inline_timeShift } true; 176#L764true assume !(0 != ~pumpRunning~0); 122#L764-2true assume !(0 != ~systemActive~0); 172#L771-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 148#L100-3true __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; 83#L169true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 70#L169-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 130#L781true assume { :end_inline_timeShift } true; 124#L700-2true [2022-07-14 15:57:10,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:10,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-14 15:57:10,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:10,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977157079] [2022-07-14 15:57:10,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:10,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:10,150 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:10,200 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:10,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:10,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1685707588, now seen corresponding path program 1 times [2022-07-14 15:57:10,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:10,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810698495] [2022-07-14 15:57:10,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:10,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:10,208 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:10,224 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:10,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:10,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1253840632, now seen corresponding path program 1 times [2022-07-14 15:57:10,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:10,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815032045] [2022-07-14 15:57:10,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:10,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:57:10,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:57:10,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:57:10,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815032045] [2022-07-14 15:57:10,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815032045] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:57:10,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:57:10,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 15:57:10,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767720251] [2022-07-14 15:57:10,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:57:10,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:57:10,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 15:57:10,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 15:57:10,459 INFO L87 Difference]: Start difference. First operand has 180 states, 179 states have (on average 1.3575418994413408) internal successors, (243), 179 states have internal predecessors, (243), 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 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:57:10,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:57:10,506 INFO L93 Difference]: Finished difference Result 177 states and 229 transitions. [2022-07-14 15:57:10,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 15:57:10,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 177 states and 229 transitions. [2022-07-14 15:57:10,528 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2022-07-14 15:57:10,532 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 177 states to 167 states and 219 transitions. [2022-07-14 15:57:10,533 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 167 [2022-07-14 15:57:10,534 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 167 [2022-07-14 15:57:10,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 167 states and 219 transitions. [2022-07-14 15:57:10,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:57:10,535 INFO L369 hiAutomatonCegarLoop]: Abstraction has 167 states and 219 transitions. [2022-07-14 15:57:10,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states and 219 transitions. [2022-07-14 15:57:10,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2022-07-14 15:57:10,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 167 states have (on average 1.311377245508982) internal successors, (219), 166 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:57:10,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 219 transitions. [2022-07-14 15:57:10,558 INFO L392 hiAutomatonCegarLoop]: Abstraction has 167 states and 219 transitions. [2022-07-14 15:57:10,558 INFO L374 stractBuchiCegarLoop]: Abstraction has 167 states and 219 transitions. [2022-07-14 15:57:10,558 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:57:10,558 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 219 transitions. [2022-07-14 15:57:10,560 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2022-07-14 15:57:10,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:10,560 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:10,561 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:10,561 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:10,561 INFO L752 eck$LassoCheckResult]: Stem: 541#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;~pumpRunning~0 := 0;~systemActive~0 := 1; 459#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret11#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 460#L311 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 477#L304 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 532#L319 main_#t~ret11#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret11#1;havoc main_#t~ret11#1; 538#L275 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 539#L248 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#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; 524#L700-2 [2022-07-14 15:57:10,561 INFO L754 eck$LassoCheckResult]: Loop: 524#L700-2 assume !false; 525#L701 assume test_~splverifierCounter~0#1 < 4; 426#L702 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 427#L710 assume !(0 != test_~tmp~5#1); 509#L710-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 446#L720 assume !(0 != test_~tmp___0~1#1); 385#L720-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 484#L730 assume 0 != test_~tmp___2~0#1; 452#L736-2 assume { :begin_inline_timeShift } true; 475#L764 assume !(0 != ~pumpRunning~0); 423#L764-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 513#L822 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret40#1, processEnvironment__wrappee__methaneQuery_~tmp~6#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~6#1; 491#L796-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 492#L788-3 assume { :end_inline_processEnvironment__wrappee__base } true; 474#L796-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 462#L822-1 assume { :end_inline_processEnvironment } true; 521#L771-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 537#L100-3 __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; 494#L169 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 481#L169-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 482#L781 assume { :end_inline_timeShift } true; 524#L700-2 [2022-07-14 15:57:10,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:10,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-14 15:57:10,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:10,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801483243] [2022-07-14 15:57:10,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:10,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:10,575 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:10,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:10,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:10,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1994990353, now seen corresponding path program 1 times [2022-07-14 15:57:10,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:10,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028780982] [2022-07-14 15:57:10,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:10,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:57:10,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:57:10,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:57:10,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028780982] [2022-07-14 15:57:10,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028780982] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:57:10,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:57:10,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 15:57:10,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770880636] [2022-07-14 15:57:10,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:57:10,609 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 15:57:10,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:57:10,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 15:57:10,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 15:57:10,610 INFO L87 Difference]: Start difference. First operand 167 states and 219 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:57:10,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:57:10,661 INFO L93 Difference]: Finished difference Result 228 states and 287 transitions. [2022-07-14 15:57:10,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 15:57:10,662 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 228 states and 287 transitions. [2022-07-14 15:57:10,672 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 158 [2022-07-14 15:57:10,674 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 228 states to 228 states and 287 transitions. [2022-07-14 15:57:10,677 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 228 [2022-07-14 15:57:10,677 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 228 [2022-07-14 15:57:10,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 228 states and 287 transitions. [2022-07-14 15:57:10,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:57:10,680 INFO L369 hiAutomatonCegarLoop]: Abstraction has 228 states and 287 transitions. [2022-07-14 15:57:10,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states and 287 transitions. [2022-07-14 15:57:10,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2022-07-14 15:57:10,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 228 states have (on average 1.2587719298245614) internal successors, (287), 227 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:57:10,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 287 transitions. [2022-07-14 15:57:10,696 INFO L392 hiAutomatonCegarLoop]: Abstraction has 228 states and 287 transitions. [2022-07-14 15:57:10,696 INFO L374 stractBuchiCegarLoop]: Abstraction has 228 states and 287 transitions. [2022-07-14 15:57:10,696 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 15:57:10,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states and 287 transitions. [2022-07-14 15:57:10,697 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 158 [2022-07-14 15:57:10,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:10,700 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:10,700 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:10,700 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:10,701 INFO L752 eck$LassoCheckResult]: Stem: 954#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;~pumpRunning~0 := 0;~systemActive~0 := 1; 861#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret11#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 862#L311 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 879#L304 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 938#L319 main_#t~ret11#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret11#1;havoc main_#t~ret11#1; 950#L275 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 951#L248 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#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; 932#L700-2 [2022-07-14 15:57:10,701 INFO L754 eck$LassoCheckResult]: Loop: 932#L700-2 assume !false; 933#L701 assume test_~splverifierCounter~0#1 < 4; 828#L702 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 829#L710 assume !(0 != test_~tmp~5#1); 910#L710-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 840#L720 assume !(0 != test_~tmp___0~1#1); 786#L720-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 887#L730 assume 0 != test_~tmp___2~0#1; 854#L736-2 assume { :begin_inline_timeShift } true; 878#L764 assume !(0 != ~pumpRunning~0); 931#L764-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 917#L822 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret40#1, processEnvironment__wrappee__methaneQuery_~tmp~6#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~6#1; 894#L796-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret52#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 868#L140-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 869#L145-1 isHighWaterLevel_#t~ret52#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret52#1;havoc isHighWaterLevel_#t~ret52#1; 909#L941-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 792#L941-5 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 793#L947-1 processEnvironment__wrappee__methaneQuery_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~6#1 := processEnvironment__wrappee__methaneQuery_#t~ret40#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret40#1; 867#L800-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 911#L788-2 assume { :end_inline_processEnvironment__wrappee__base } true; 876#L796-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 864#L822-1 assume { :end_inline_processEnvironment } true; 928#L771-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 948#L100-3 __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; 896#L169 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 884#L169-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 885#L781 assume { :end_inline_timeShift } true; 932#L700-2 [2022-07-14 15:57:10,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:10,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-14 15:57:10,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:10,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75048699] [2022-07-14 15:57:10,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:10,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:10,720 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:10,733 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:10,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:10,747 INFO L85 PathProgramCache]: Analyzing trace with hash -413153465, now seen corresponding path program 1 times [2022-07-14 15:57:10,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:10,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854333604] [2022-07-14 15:57:10,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:10,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:10,759 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:10,767 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:10,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:10,771 INFO L85 PathProgramCache]: Analyzing trace with hash -37865725, now seen corresponding path program 1 times [2022-07-14 15:57:10,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:10,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005156561] [2022-07-14 15:57:10,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:10,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:10,785 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:10,810 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:13,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 03:57:13 BoogieIcfgContainer [2022-07-14 15:57:13,185 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 15:57:13,186 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 15:57:13,187 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 15:57:13,187 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 15:57:13,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:09" (3/4) ... [2022-07-14 15:57:13,189 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 15:57:13,240 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 15:57:13,240 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 15:57:13,241 INFO L158 Benchmark]: Toolchain (without parser) took 4417.97ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 106.7MB in the beginning and 91.8MB in the end (delta: 14.9MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2022-07-14 15:57:13,241 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 88.1MB. Free memory was 63.5MB in the beginning and 63.4MB in the end (delta: 94.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:57:13,241 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.91ms. Allocated memory is still 127.9MB. Free memory was 106.7MB in the beginning and 87.8MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-14 15:57:13,242 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.33ms. Allocated memory is still 127.9MB. Free memory was 87.8MB in the beginning and 84.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 15:57:13,242 INFO L158 Benchmark]: Boogie Preprocessor took 28.66ms. Allocated memory is still 127.9MB. Free memory was 84.3MB in the beginning and 81.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 15:57:13,242 INFO L158 Benchmark]: RCFGBuilder took 621.85ms. Allocated memory is still 127.9MB. Free memory was 81.6MB in the beginning and 58.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-14 15:57:13,243 INFO L158 Benchmark]: BuchiAutomizer took 3274.73ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 58.6MB in the beginning and 93.8MB in the end (delta: -35.2MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2022-07-14 15:57:13,243 INFO L158 Benchmark]: Witness Printer took 53.65ms. Allocated memory is still 155.2MB. Free memory was 93.8MB in the beginning and 91.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:57:13,245 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 88.1MB. Free memory was 63.5MB in the beginning and 63.4MB in the end (delta: 94.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.91ms. Allocated memory is still 127.9MB. Free memory was 106.7MB in the beginning and 87.8MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.33ms. Allocated memory is still 127.9MB. Free memory was 87.8MB in the beginning and 84.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.66ms. Allocated memory is still 127.9MB. Free memory was 84.3MB in the beginning and 81.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 621.85ms. Allocated memory is still 127.9MB. Free memory was 81.6MB in the beginning and 58.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 3274.73ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 58.6MB in the beginning and 93.8MB in the end (delta: -35.2MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. * Witness Printer took 53.65ms. Allocated memory is still 155.2MB. Free memory was 93.8MB in the beginning and 91.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 228 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1052 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1052 mSDsluCounter, 524 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 96 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 428 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 700]: 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, NULL=0, head=0, tmp___0=0, pumpRunning=0, tmp___0=0, NULL=1, tmp___0=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77b6e8dd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3073616=0, tmp=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=0, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@452655b1=29, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@129c197c=0, retValue_acc=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b46a478=0, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fd352a8=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55f3ef5f=0, cleanupTimeShifts=4, \result=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f7a405b=0, head=0, tmp___1=0, NULL=0, tmp=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a5fae6c=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@232066bb=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 700]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L187] int cleanupTimeShifts = 4; [L493] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L757] int pumpRunning = 0; [L758] int systemActive = 1; [L266] int retValue_acc ; [L267] int tmp ; [L271] FCALL select_helpers() [L272] FCALL select_features() [L273] CALL, EXPR valid_product() [L315] int retValue_acc ; [L318] retValue_acc = 1 [L319] return (retValue_acc); [L273] RET, EXPR valid_product() [L273] tmp = valid_product() [L275] COND TRUE \read(tmp) [L277] FCALL setup() [L278] CALL runTest() [L257] CALL test() [L691] int splverifierCounter ; [L692] int tmp ; [L693] int tmp___0 ; [L694] int tmp___1 ; [L695] int tmp___2 ; [L698] splverifierCounter = 0 Loop: [L700] COND TRUE 1 [L702] COND TRUE splverifierCounter < 4 [L708] tmp = __VERIFIER_nondet_int() [L710] COND FALSE !(\read(tmp)) [L718] tmp___0 = __VERIFIER_nondet_int() [L720] COND FALSE !(\read(tmp___0)) [L728] tmp___2 = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp___2) [L743] CALL timeShift() [L764] COND FALSE !(\read(pumpRunning)) [L771] COND TRUE \read(systemActive) [L773] CALL processEnvironment() [L819] int tmp ; [L822] COND FALSE !(\read(pumpRunning)) [L837] CALL processEnvironment__wrappee__methaneQuery() [L793] int tmp ; [L796] COND TRUE ! pumpRunning [L798] CALL, EXPR isHighWaterLevel() [L933] int retValue_acc ; [L934] int tmp ; [L935] int tmp___0 ; [L939] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L939] RET, EXPR isHighWaterSensorDry() [L939] tmp = isHighWaterSensorDry() [L941] COND TRUE \read(tmp) [L942] tmp___0 = 0 [L946] retValue_acc = tmp___0 [L947] return (retValue_acc); [L798] RET, EXPR isHighWaterLevel() [L798] tmp = isHighWaterLevel() [L800] COND FALSE !(\read(tmp)) [L806] FCALL processEnvironment__wrappee__base() [L837] RET processEnvironment__wrappee__methaneQuery() [L773] RET processEnvironment() [L779] CALL __utac_acc__Specification1_spec__1() [L162] int tmp ; [L163] int tmp___0 ; [L167] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L167] RET, EXPR isMethaneLevelCritical() [L167] tmp = isMethaneLevelCritical() [L169] COND FALSE !(\read(tmp)) [L779] RET __utac_acc__Specification1_spec__1() [L743] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 15:57:13,280 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)