./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 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_spec2_product42.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 23f15893fb26009b2882a55698a2d895d2e3e404fcbd45ba17e1cf64b2b2b34e --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 19:10:20,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 19:10:20,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 19:10:20,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 19:10:20,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 19:10:20,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 19:10:20,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 19:10:20,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 19:10:20,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 19:10:20,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 19:10:20,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 19:10:20,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 19:10:20,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 19:10:20,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 19:10:20,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 19:10:20,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 19:10:20,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 19:10:20,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 19:10:20,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 19:10:20,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 19:10:20,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 19:10:20,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 19:10:20,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 19:10:20,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 19:10:20,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 19:10:20,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 19:10:20,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 19:10:20,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 19:10:20,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 19:10:20,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 19:10:20,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 19:10:20,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 19:10:20,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 19:10:20,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 19:10:20,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 19:10:20,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 19:10:20,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 19:10:20,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 19:10:20,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 19:10:20,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 19:10:20,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 19:10:20,784 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-19 19:10:20,820 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 19:10:20,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 19:10:20,821 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 19:10:20,821 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 19:10:20,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 19:10:20,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 19:10:20,822 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 19:10:20,823 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 19:10:20,823 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 19:10:20,823 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 19:10:20,824 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 19:10:20,824 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 19:10:20,824 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 19:10:20,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 19:10:20,824 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 19:10:20,825 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 19:10:20,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 19:10:20,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 19:10:20,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 19:10:20,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 19:10:20,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 19:10:20,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 19:10:20,826 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 19:10:20,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 19:10:20,826 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 19:10:20,826 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 19:10:20,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 19:10:20,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 19:10:20,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 19:10:20,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 19:10:20,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 19:10:20,828 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 19:10:20,829 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 19:10:20,829 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f15893fb26009b2882a55698a2d895d2e3e404fcbd45ba17e1cf64b2b2b34e [2021-12-19 19:10:21,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 19:10:21,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 19:10:21,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 19:10:21,075 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 19:10:21,075 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 19:10:21,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2021-12-19 19:10:21,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/549f10e35/497e1294a10348e386e0b36ae9ab506a/FLAG6f9316efe [2021-12-19 19:10:21,640 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 19:10:21,641 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2021-12-19 19:10:21,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/549f10e35/497e1294a10348e386e0b36ae9ab506a/FLAG6f9316efe [2021-12-19 19:10:22,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/549f10e35/497e1294a10348e386e0b36ae9ab506a [2021-12-19 19:10:22,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 19:10:22,127 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 19:10:22,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 19:10:22,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 19:10:22,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 19:10:22,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:10:22" (1/1) ... [2021-12-19 19:10:22,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41a4322d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:10:22, skipping insertion in model container [2021-12-19 19:10:22,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:10:22" (1/1) ... [2021-12-19 19:10:22,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 19:10:22,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 19:10:22,518 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_spec2_product42.cil.c[17055,17068] [2021-12-19 19:10:22,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:10:22,536 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 19:10:22,606 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_spec2_product42.cil.c[17055,17068] [2021-12-19 19:10:22,620 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:10:22,641 INFO L208 MainTranslator]: Completed translation [2021-12-19 19:10:22,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:10:22 WrapperNode [2021-12-19 19:10:22,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 19:10:22,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 19:10:22,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 19:10:22,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 19:10:22,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:10:22" (1/1) ... [2021-12-19 19:10:22,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:10:22" (1/1) ... [2021-12-19 19:10:22,719 INFO L137 Inliner]: procedures = 55, calls = 153, calls flagged for inlining = 50, calls inlined = 58, statements flattened = 471 [2021-12-19 19:10:22,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 19:10:22,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 19:10:22,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 19:10:22,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 19:10:22,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:10:22" (1/1) ... [2021-12-19 19:10:22,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:10:22" (1/1) ... [2021-12-19 19:10:22,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:10:22" (1/1) ... [2021-12-19 19:10:22,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:10:22" (1/1) ... [2021-12-19 19:10:22,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:10:22" (1/1) ... [2021-12-19 19:10:22,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:10:22" (1/1) ... [2021-12-19 19:10:22,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:10:22" (1/1) ... [2021-12-19 19:10:22,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 19:10:22,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 19:10:22,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 19:10:22,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 19:10:22,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:10:22" (1/1) ... [2021-12-19 19:10:22,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:10:22,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:10:22,828 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) [2021-12-19 19:10:22,846 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 [2021-12-19 19:10:22,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 19:10:22,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 19:10:22,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 19:10:22,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 19:10:22,947 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 19:10:22,948 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 19:10:23,272 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 19:10:23,279 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 19:10:23,279 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-19 19:10:23,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:10:23 BoogieIcfgContainer [2021-12-19 19:10:23,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 19:10:23,282 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 19:10:23,283 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 19:10:23,285 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 19:10:23,286 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:10:23,286 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 07:10:22" (1/3) ... [2021-12-19 19:10:23,287 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d74c746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:10:23, skipping insertion in model container [2021-12-19 19:10:23,287 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:10:23,287 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:10:22" (2/3) ... [2021-12-19 19:10:23,287 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d74c746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:10:23, skipping insertion in model container [2021-12-19 19:10:23,288 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:10:23,288 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:10:23" (3/3) ... [2021-12-19 19:10:23,290 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2021-12-19 19:10:23,322 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 19:10:23,323 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 19:10:23,323 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 19:10:23,323 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 19:10:23,323 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 19:10:23,323 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 19:10:23,324 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 19:10:23,324 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 19:10:23,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 122 states, 121 states have (on average 1.3801652892561984) internal successors, (167), 121 states have internal predecessors, (167), 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) [2021-12-19 19:10:23,366 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2021-12-19 19:10:23,366 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:10:23,367 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:10:23,375 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:10:23,375 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:10:23,375 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 19:10:23,377 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 122 states, 121 states have (on average 1.3801652892561984) internal successors, (167), 121 states have internal predecessors, (167), 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) [2021-12-19 19:10:23,391 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2021-12-19 19:10:23,391 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:10:23,391 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:10:23,392 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:10:23,392 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:10:23,400 INFO L791 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 38#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 41#L740true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 95#L733true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 34#L748true main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 16#L836true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 72#L812true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 67#L682true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 63#L431-2true [2021-12-19 19:10:23,401 INFO L793 eck$LassoCheckResult]: Loop: 63#L431-2true assume !false; 84#L432true assume test_~splverifierCounter~0#1 < 4; 62#L433true test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 22#L441true assume !(0 != test_~tmp~3#1); 89#L441-2true test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 124#L451true assume !(0 != test_~tmp___0~0#1); 86#L451-2true test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 5#L461true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 111#L671true assume { :end_inline_startSystem } true; 33#L469-2true assume { :begin_inline_timeShift } true; 71#L504true assume !(0 != ~pumpRunning~0); 92#L504-2true assume !(0 != ~systemActive~0); 59#L511-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret43#1, __utac_acc__Specification2_spec__2_#t~ret44#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 110#L903-1true __utac_acc__Specification2_spec__2_#t~ret43#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret43#1;havoc __utac_acc__Specification2_spec__2_#t~ret43#1; 118#L693true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 9#L693-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 88#L521true assume { :end_inline_timeShift } true; 63#L431-2true [2021-12-19 19:10:23,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:10:23,408 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-19 19:10:23,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:10:23,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375135324] [2021-12-19 19:10:23,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:10:23,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:10:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:23,554 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:10:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:23,599 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:10:23,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:10:23,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1565960311, now seen corresponding path program 1 times [2021-12-19 19:10:23,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:10:23,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952337966] [2021-12-19 19:10:23,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:10:23,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:10:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:10:23,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:10:23,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:10:23,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952337966] [2021-12-19 19:10:23,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952337966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:10:23,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:10:23,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 19:10:23,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88848871] [2021-12-19 19:10:23,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:10:23,712 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 19:10:23,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:10:23,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 19:10:23,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 19:10:23,746 INFO L87 Difference]: Start difference. First operand has 122 states, 121 states have (on average 1.3801652892561984) internal successors, (167), 121 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-12-19 19:10:23,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:10:23,799 INFO L93 Difference]: Finished difference Result 119 states and 154 transitions. [2021-12-19 19:10:23,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 19:10:23,805 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 154 transitions. [2021-12-19 19:10:23,812 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-12-19 19:10:23,816 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 109 states and 143 transitions. [2021-12-19 19:10:23,817 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 109 [2021-12-19 19:10:23,819 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 109 [2021-12-19 19:10:23,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 143 transitions. [2021-12-19 19:10:23,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:10:23,821 INFO L681 BuchiCegarLoop]: Abstraction has 109 states and 143 transitions. [2021-12-19 19:10:23,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 143 transitions. [2021-12-19 19:10:23,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-12-19 19:10:23,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.311926605504587) internal successors, (143), 108 states have internal predecessors, (143), 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) [2021-12-19 19:10:23,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 143 transitions. [2021-12-19 19:10:23,851 INFO L704 BuchiCegarLoop]: Abstraction has 109 states and 143 transitions. [2021-12-19 19:10:23,852 INFO L587 BuchiCegarLoop]: Abstraction has 109 states and 143 transitions. [2021-12-19 19:10:23,852 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 19:10:23,852 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 143 transitions. [2021-12-19 19:10:23,854 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-12-19 19:10:23,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:10:23,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:10:23,856 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:10:23,856 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] [2021-12-19 19:10:23,856 INFO L791 eck$LassoCheckResult]: Stem: 358#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 304#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 305#L740 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 308#L733 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 299#L748 main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 270#L836 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 271#L812 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 338#L682 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 334#L431-2 [2021-12-19 19:10:23,856 INFO L793 eck$LassoCheckResult]: Loop: 334#L431-2 assume !false; 335#L432 assume test_~splverifierCounter~0#1 < 4; 333#L433 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 280#L441 assume !(0 != test_~tmp~3#1); 282#L441-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 349#L451 assume !(0 != test_~tmp___0~0#1); 279#L451-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 253#L461 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 254#L671 assume { :end_inline_startSystem } true; 269#L469-2 assume { :begin_inline_timeShift } true; 298#L504 assume !(0 != ~pumpRunning~0); 342#L504-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret31#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 327#L536 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 313#L528-1 assume { :end_inline_processEnvironment__wrappee__base } true; 307#L536-1 assume { :end_inline_processEnvironment } true; 329#L511-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret43#1, __utac_acc__Specification2_spec__2_#t~ret44#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 330#L903-1 __utac_acc__Specification2_spec__2_#t~ret43#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret43#1;havoc __utac_acc__Specification2_spec__2_#t~ret43#1; 356#L693 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 260#L693-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 261#L521 assume { :end_inline_timeShift } true; 334#L431-2 [2021-12-19 19:10:23,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:10:23,858 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-19 19:10:23,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:10:23,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187503619] [2021-12-19 19:10:23,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:10:23,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:10:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:23,878 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:10:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:23,908 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:10:23,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:10:23,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1829762510, now seen corresponding path program 1 times [2021-12-19 19:10:23,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:10:23,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833951809] [2021-12-19 19:10:23,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:10:23,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:10:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:10:23,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:10:23,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:10:23,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833951809] [2021-12-19 19:10:23,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833951809] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:10:23,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:10:23,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 19:10:23,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552316870] [2021-12-19 19:10:23,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:10:23,926 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 19:10:23,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:10:23,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 19:10:23,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 19:10:23,927 INFO L87 Difference]: Start difference. First operand 109 states and 143 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-12-19 19:10:23,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:10:23,966 INFO L93 Difference]: Finished difference Result 168 states and 215 transitions. [2021-12-19 19:10:23,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 19:10:23,967 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 168 states and 215 transitions. [2021-12-19 19:10:23,969 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2021-12-19 19:10:23,970 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 168 states to 168 states and 215 transitions. [2021-12-19 19:10:23,970 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 168 [2021-12-19 19:10:23,971 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 168 [2021-12-19 19:10:23,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 168 states and 215 transitions. [2021-12-19 19:10:23,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:10:23,972 INFO L681 BuchiCegarLoop]: Abstraction has 168 states and 215 transitions. [2021-12-19 19:10:23,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states and 215 transitions. [2021-12-19 19:10:23,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2021-12-19 19:10:23,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 168 states have (on average 1.2797619047619047) internal successors, (215), 167 states have internal predecessors, (215), 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) [2021-12-19 19:10:23,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 215 transitions. [2021-12-19 19:10:23,979 INFO L704 BuchiCegarLoop]: Abstraction has 168 states and 215 transitions. [2021-12-19 19:10:23,979 INFO L587 BuchiCegarLoop]: Abstraction has 168 states and 215 transitions. [2021-12-19 19:10:23,979 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-19 19:10:23,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 215 transitions. [2021-12-19 19:10:23,980 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2021-12-19 19:10:23,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:10:23,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:10:23,981 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:10:23,981 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:10:23,981 INFO L791 eck$LassoCheckResult]: Stem: 656#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 589#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 590#L740 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 593#L733 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 584#L748 main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 554#L836 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 555#L812 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 623#L682 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 624#L431-2 [2021-12-19 19:10:23,982 INFO L793 eck$LassoCheckResult]: Loop: 624#L431-2 assume !false; 640#L432 assume test_~splverifierCounter~0#1 < 4; 641#L433 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 682#L441 assume !(0 != test_~tmp~3#1); 680#L441-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 677#L451 assume !(0 != test_~tmp___0~0#1); 674#L451-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 672#L461 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 552#L469 assume 0 != test_~tmp___1~0#1; 553#L469-2 assume { :begin_inline_timeShift } true; 627#L504 assume !(0 != ~pumpRunning~0); 628#L504-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret31#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 613#L536 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 614#L943 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 539#L948 isHighWaterLevel_#t~ret42#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret42#1;havoc isHighWaterLevel_#t~ret42#1; 540#L656 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 646#L656-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 594#L662 processEnvironment_#t~ret31#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret31#1;havoc processEnvironment_#t~ret31#1; 571#L540 assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 573#L528 assume { :end_inline_processEnvironment__wrappee__base } true; 592#L536-1 assume { :end_inline_processEnvironment } true; 615#L511-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret43#1, __utac_acc__Specification2_spec__2_#t~ret44#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 616#L903-1 __utac_acc__Specification2_spec__2_#t~ret43#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret43#1;havoc __utac_acc__Specification2_spec__2_#t~ret43#1; 652#L693 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 663#L693-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 662#L521 assume { :end_inline_timeShift } true; 624#L431-2 [2021-12-19 19:10:23,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:10:23,982 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-19 19:10:23,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:10:23,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069624583] [2021-12-19 19:10:23,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:10:23,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:10:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:23,996 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:10:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:24,011 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:10:24,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:10:24,012 INFO L85 PathProgramCache]: Analyzing trace with hash 25034741, now seen corresponding path program 1 times [2021-12-19 19:10:24,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:10:24,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102303397] [2021-12-19 19:10:24,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:10:24,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:10:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:24,025 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:10:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:24,041 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:10:24,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:10:24,043 INFO L85 PathProgramCache]: Analyzing trace with hash 723280286, now seen corresponding path program 1 times [2021-12-19 19:10:24,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:10:24,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446771276] [2021-12-19 19:10:24,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:10:24,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:10:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:24,056 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:10:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:24,070 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:10:27,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 07:10:27 BoogieIcfgContainer [2021-12-19 19:10:27,034 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 19:10:27,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 19:10:27,035 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 19:10:27,036 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 19:10:27,036 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:10:23" (3/4) ... [2021-12-19 19:10:27,039 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-19 19:10:27,095 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-19 19:10:27,095 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 19:10:27,096 INFO L158 Benchmark]: Toolchain (without parser) took 4969.36ms. Allocated memory was 88.1MB in the beginning and 134.2MB in the end (delta: 46.1MB). Free memory was 56.3MB in the beginning and 69.2MB in the end (delta: -12.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-12-19 19:10:27,097 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 19:10:27,097 INFO L158 Benchmark]: CACSL2BoogieTranslator took 508.51ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 56.1MB in the beginning and 79.5MB in the end (delta: -23.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 19:10:27,097 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.48ms. Allocated memory is still 111.1MB. Free memory was 79.5MB in the beginning and 76.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:10:27,098 INFO L158 Benchmark]: Boogie Preprocessor took 65.25ms. Allocated memory is still 111.1MB. Free memory was 76.5MB in the beginning and 74.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:10:27,098 INFO L158 Benchmark]: RCFGBuilder took 493.15ms. Allocated memory is still 111.1MB. Free memory was 74.4MB in the beginning and 82.4MB in the end (delta: -8.0MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2021-12-19 19:10:27,099 INFO L158 Benchmark]: BuchiAutomizer took 3752.19ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 82.4MB in the beginning and 72.3MB in the end (delta: 10.1MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2021-12-19 19:10:27,099 INFO L158 Benchmark]: Witness Printer took 60.43ms. Allocated memory is still 134.2MB. Free memory was 72.3MB in the beginning and 69.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:10:27,101 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 508.51ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 56.1MB in the beginning and 79.5MB in the end (delta: -23.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.48ms. Allocated memory is still 111.1MB. Free memory was 79.5MB in the beginning and 76.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.25ms. Allocated memory is still 111.1MB. Free memory was 76.5MB in the beginning and 74.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 493.15ms. Allocated memory is still 111.1MB. Free memory was 74.4MB in the beginning and 82.4MB in the end (delta: -8.0MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3752.19ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 82.4MB in the beginning and 72.3MB in the end (delta: 10.1MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. * Witness Printer took 60.43ms. Allocated memory is still 134.2MB. Free memory was 72.3MB in the beginning and 69.2MB 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 3 locations. The remainder module has 168 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. 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 168 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 265 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 265 mSDsluCounter, 374 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 296 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 431]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@542a4f00=29, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@201aad63=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dbf33e3=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78380d0f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68ad9e96=0, methaneLevelCritical=0, tmp=0, \result=0, retValue_acc=1, retValue_acc=1, \result=1, retValue_acc=0, \result=1, tmp=1, tmp=1, tmp___2=0, methAndRunningLastTime=0, cleanupTimeShifts=4, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51fb7859=0, tmp=0, head=0, retValue_acc=0, tmp___1=29, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11763a88=0, \result=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49274155=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b13844d=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 431]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L496] int pumpRunning = 0; [L497] int systemActive = 1; [L676] int methAndRunningLastTime ; [L753] int cleanupTimeShifts = 4; [L860] int waterLevel = 1; [L861] int methaneLevelCritical = 0; [L827] int retValue_acc ; [L828] int tmp ; [L832] FCALL select_helpers() [L833] FCALL select_features() [L834] CALL, EXPR valid_product() [L744] int retValue_acc ; [L747] retValue_acc = 1 [L748] return (retValue_acc); [L834] RET, EXPR valid_product() [L834] tmp = valid_product() [L836] COND TRUE \read(tmp) [L838] FCALL setup() [L839] CALL runTest() [L820] CALL __utac_acc__Specification2_spec__1() [L681] methAndRunningLastTime = 0 [L820] RET __utac_acc__Specification2_spec__1() [L821] CALL test() [L422] int splverifierCounter ; [L423] int tmp ; [L424] int tmp___0 ; [L425] int tmp___1 ; [L426] int tmp___2 ; [L429] splverifierCounter = 0 Loop: [L431] COND TRUE 1 [L433] COND TRUE splverifierCounter < 4 [L439] tmp = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp)) [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___0)) [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND FALSE !(\read(tmp___2)) [L467] tmp___1 = __VERIFIER_nondet_int() [L469] COND TRUE \read(tmp___1) [L476] CALL timeShift() [L504] COND FALSE !(\read(pumpRunning)) [L511] COND TRUE \read(systemActive) [L513] CALL processEnvironment() [L533] int tmp ; [L536] COND TRUE ! pumpRunning [L538] CALL, EXPR isHighWaterLevel() [L648] int retValue_acc ; [L649] int tmp ; [L650] int tmp___0 ; [L654] CALL, EXPR isHighWaterSensorDry() [L940] int retValue_acc ; [L943] COND TRUE waterLevel < 2 [L944] retValue_acc = 1 [L945] return (retValue_acc); [L654] RET, EXPR isHighWaterSensorDry() [L654] tmp = isHighWaterSensorDry() [L656] COND TRUE \read(tmp) [L657] tmp___0 = 0 [L661] retValue_acc = tmp___0 [L662] return (retValue_acc); [L538] RET, EXPR isHighWaterLevel() [L538] tmp = isHighWaterLevel() [L540] COND FALSE !(\read(tmp)) [L546] FCALL processEnvironment__wrappee__base() [L513] RET processEnvironment() [L519] CALL __utac_acc__Specification2_spec__2() [L686] int tmp ; [L687] int tmp___0 ; [L691] CALL, EXPR isMethaneLevelCritical() [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); [L691] RET, EXPR isMethaneLevelCritical() [L691] tmp = isMethaneLevelCritical() [L693] COND FALSE !(\read(tmp)) [L709] methAndRunningLastTime = 0 [L519] RET __utac_acc__Specification2_spec__2() [L476] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-19 19:10:27,155 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)