./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product45.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_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 69f20c6619059452dea710c235d91f0e8ca980fcacc48c7e37668ab8a6397c50 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 19:10:21,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 19:10:21,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 19:10:21,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 19:10:21,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 19:10:21,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 19:10:21,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 19:10:21,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 19:10:21,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 19:10:21,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 19:10:21,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 19:10:21,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 19:10:21,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 19:10:21,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 19:10:21,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 19:10:21,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 19:10:21,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 19:10:21,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 19:10:21,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 19:10:21,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 19:10:21,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 19:10:21,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 19:10:21,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 19:10:21,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 19:10:21,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 19:10:21,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 19:10:21,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 19:10:21,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 19:10:21,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 19:10:21,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 19:10:21,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 19:10:21,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 19:10:21,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 19:10:21,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 19:10:21,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 19:10:21,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 19:10:21,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 19:10:21,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 19:10:21,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 19:10:21,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 19:10:21,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 19:10:21,750 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-19 19:10:21,773 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 19:10:21,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 19:10:21,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 19:10:21,775 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 19:10:21,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 19:10:21,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 19:10:21,776 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 19:10:21,777 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 19:10:21,777 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 19:10:21,777 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 19:10:21,778 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 19:10:21,778 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 19:10:21,778 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 19:10:21,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 19:10:21,778 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 19:10:21,778 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 19:10:21,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 19:10:21,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 19:10:21,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 19:10:21,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 19:10:21,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 19:10:21,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 19:10:21,779 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 19:10:21,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 19:10:21,780 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 19:10:21,780 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 19:10:21,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 19:10:21,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 19:10:21,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 19:10:21,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 19:10:21,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 19:10:21,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 19:10:21,782 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 19:10:21,782 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69f20c6619059452dea710c235d91f0e8ca980fcacc48c7e37668ab8a6397c50 [2021-12-19 19:10:21,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 19:10:21,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 19:10:21,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 19:10:21,977 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 19:10:21,977 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 19:10:21,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c [2021-12-19 19:10:22,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9abd95ec1/8b3da06dc1ad42d6a406e0f5d547953b/FLAG220a099b8 [2021-12-19 19:10:22,441 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 19:10:22,441 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c [2021-12-19 19:10:22,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9abd95ec1/8b3da06dc1ad42d6a406e0f5d547953b/FLAG220a099b8 [2021-12-19 19:10:22,469 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9abd95ec1/8b3da06dc1ad42d6a406e0f5d547953b [2021-12-19 19:10:22,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 19:10:22,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 19:10:22,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 19:10:22,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 19:10:22,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 19:10:22,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:10:22" (1/1) ... [2021-12-19 19:10:22,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e708c97 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 19:10:22,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:10:22" (1/1) ... [2021-12-19 19:10:22,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 19:10:22,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 19:10:22,696 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_product45.cil.c[11292,11305] [2021-12-19 19:10:22,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:10:22,739 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 19:10:22,777 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_product45.cil.c[11292,11305] [2021-12-19 19:10:22,803 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:10:22,817 INFO L208 MainTranslator]: Completed translation [2021-12-19 19:10:22,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:10:22 WrapperNode [2021-12-19 19:10:22,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 19:10:22,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 19:10:22,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 19:10:22,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 19:10:22,828 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 19:10:22,841 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 19:10:22,885 INFO L137 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 53, calls inlined = 96, statements flattened = 723 [2021-12-19 19:10:22,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 19:10:22,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 19:10:22,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 19:10:22,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 19:10:22,892 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 19:10:22,892 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 19:10:22,899 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 19:10:22,899 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 19:10:22,905 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 19:10:22,910 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 19:10:22,912 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 19:10:22,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 19:10:22,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 19:10:22,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 19:10:22,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 19:10:22,921 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 19:10:22,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:10:22,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:10:22,948 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 19:10:22,950 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 19:10:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 19:10:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 19:10:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 19:10:22,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 19:10:23,051 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 19:10:23,052 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 19:10:23,367 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 19:10:23,373 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 19:10:23,376 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-19 19:10:23,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:10:23 BoogieIcfgContainer [2021-12-19 19:10:23,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 19:10:23,379 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 19:10:23,379 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 19:10:23,381 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 19:10:23,382 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:10:23,382 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 07:10:22" (1/3) ... [2021-12-19 19:10:23,383 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38223467 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 19:10:23,383 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:10:23,384 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 19:10:23,384 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38223467 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 19:10:23,384 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:10:23,384 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 19:10:23,385 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product45.cil.c [2021-12-19 19:10:23,415 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 19:10:23,415 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 19:10:23,415 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 19:10:23,415 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 19:10:23,416 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 19:10:23,416 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 19:10:23,416 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 19:10:23,416 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 19:10:23,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 184 states, 183 states have (on average 1.366120218579235) internal successors, (250), 183 states have internal predecessors, (250), 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 19:10:23,447 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2021-12-19 19:10:23,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:10:23,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:10:23,453 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:10:23,453 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:10:23,453 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 19:10:23,456 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 184 states, 183 states have (on average 1.366120218579235) internal successors, (250), 183 states have internal predecessors, (250), 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 19:10:23,461 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2021-12-19 19:10:23,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:10:23,461 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:10:23,462 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:10:23,462 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:10:23,465 INFO L791 eck$LassoCheckResult]: Stem: 163#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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0; 53#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 161#L916true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 79#L909true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 122#L924true main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 120#L517true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 91#L488true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 98#L935true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 123#L744-2true [2021-12-19 19:10:23,466 INFO L793 eck$LassoCheckResult]: Loop: 123#L744-2true assume !false; 103#L745true assume test_~splverifierCounter~0#1 < 4; 124#L746true test_~tmp~8#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 7#L754true assume !(0 != test_~tmp~8#1); 87#L754-2true test_~tmp___0~1#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 176#L764true assume !(0 != test_~tmp___0~1#1); 136#L764-2true test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 126#L774true assume 0 != test_~tmp___2~0#1; 119#L780-2true assume { :begin_inline_timeShift } true; 45#L546true assume !(0 != ~pumpRunning~0); 60#L546-2true assume !(0 != ~systemActive~0); 131#L553-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 179#L843-3true __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; 174#L946true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 116#L946-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 85#L563true assume { :end_inline_timeShift } true; 123#L744-2true [2021-12-19 19:10:23,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:10:23,470 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-19 19:10:23,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:10:23,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716466953] [2021-12-19 19:10:23,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:10:23,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:10:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:23,546 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:10:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:23,576 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:10:23,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:10:23,578 INFO L85 PathProgramCache]: Analyzing trace with hash 57947274, now seen corresponding path program 1 times [2021-12-19 19:10:23,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:10:23,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134325132] [2021-12-19 19:10:23,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:10:23,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:10:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:23,584 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:10:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:23,590 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:10:23,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:10:23,592 INFO L85 PathProgramCache]: Analyzing trace with hash -104340109, now seen corresponding path program 1 times [2021-12-19 19:10:23,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:10:23,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062547570] [2021-12-19 19:10:23,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:10:23,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:10:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:10:23,710 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 19:10:23,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:10:23,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062547570] [2021-12-19 19:10:23,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062547570] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:10:23,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:10:23,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-19 19:10:23,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331869678] [2021-12-19 19:10:23,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:10:23,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:10:23,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-19 19:10:23,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-19 19:10:23,843 INFO L87 Difference]: Start difference. First operand has 184 states, 183 states have (on average 1.366120218579235) internal successors, (250), 183 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 19:10:23,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:10:23,918 INFO L93 Difference]: Finished difference Result 181 states and 236 transitions. [2021-12-19 19:10:23,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 19:10:23,923 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 181 states and 236 transitions. [2021-12-19 19:10:23,926 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2021-12-19 19:10:23,929 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 181 states to 171 states and 226 transitions. [2021-12-19 19:10:23,929 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2021-12-19 19:10:23,930 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2021-12-19 19:10:23,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 226 transitions. [2021-12-19 19:10:23,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:10:23,931 INFO L681 BuchiCegarLoop]: Abstraction has 171 states and 226 transitions. [2021-12-19 19:10:23,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 226 transitions. [2021-12-19 19:10:23,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2021-12-19 19:10:23,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 171 states have (on average 1.3216374269005848) internal successors, (226), 170 states have internal predecessors, (226), 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 19:10:23,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 226 transitions. [2021-12-19 19:10:23,952 INFO L704 BuchiCegarLoop]: Abstraction has 171 states and 226 transitions. [2021-12-19 19:10:23,952 INFO L587 BuchiCegarLoop]: Abstraction has 171 states and 226 transitions. [2021-12-19 19:10:23,952 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 19:10:23,953 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 226 transitions. [2021-12-19 19:10:23,954 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2021-12-19 19:10:23,954 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:10:23,954 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:10:23,954 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:10:23,954 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:10:23,954 INFO L791 eck$LassoCheckResult]: Stem: 552#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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0; 469#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 470#L916 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 495#L909 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 496#L924 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 534#L517 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 512#L488 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 513#L935 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 501#L744-2 [2021-12-19 19:10:23,955 INFO L793 eck$LassoCheckResult]: Loop: 501#L744-2 assume !false; 521#L745 assume test_~splverifierCounter~0#1 < 4; 522#L746 test_~tmp~8#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 390#L754 assume !(0 != test_~tmp~8#1); 392#L754-2 test_~tmp___0~1#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 508#L764 assume !(0 != test_~tmp___0~1#1); 541#L764-2 test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 537#L774 assume 0 != test_~tmp___2~0#1; 389#L780-2 assume { :begin_inline_timeShift } true; 460#L546 assume !(0 != ~pumpRunning~0); 461#L546-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 477#L604 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret28#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 481#L578-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 526#L570-3 assume { :end_inline_processEnvironment__wrappee__base } true; 410#L578-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 411#L604-1 assume { :end_inline_processEnvironment } true; 412#L553-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 540#L843-3 __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; 553#L946 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 456#L946-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 500#L563 assume { :end_inline_timeShift } true; 501#L744-2 [2021-12-19 19:10:23,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:10:23,955 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-19 19:10:23,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:10:23,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870941830] [2021-12-19 19:10:23,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:10:23,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:10:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:23,971 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:10:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:23,993 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:10:23,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:10:23,994 INFO L85 PathProgramCache]: Analyzing trace with hash -699199049, now seen corresponding path program 1 times [2021-12-19 19:10:23,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:10:23,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305916191] [2021-12-19 19:10:23,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:10:23,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:10:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:10:24,007 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 19:10:24,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:10:24,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305916191] [2021-12-19 19:10:24,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305916191] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:10:24,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:10:24,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 19:10:24,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210196012] [2021-12-19 19:10:24,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:10:24,008 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 19:10:24,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:10:24,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 19:10:24,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 19:10:24,009 INFO L87 Difference]: Start difference. First operand 171 states and 226 transitions. cyclomatic complexity: 57 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) [2021-12-19 19:10:24,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:10:24,093 INFO L93 Difference]: Finished difference Result 235 states and 300 transitions. [2021-12-19 19:10:24,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 19:10:24,094 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 235 states and 300 transitions. [2021-12-19 19:10:24,113 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 162 [2021-12-19 19:10:24,115 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 235 states to 235 states and 300 transitions. [2021-12-19 19:10:24,115 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 235 [2021-12-19 19:10:24,116 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 235 [2021-12-19 19:10:24,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 235 states and 300 transitions. [2021-12-19 19:10:24,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:10:24,117 INFO L681 BuchiCegarLoop]: Abstraction has 235 states and 300 transitions. [2021-12-19 19:10:24,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states and 300 transitions. [2021-12-19 19:10:24,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2021-12-19 19:10:24,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 235 states have (on average 1.2765957446808511) internal successors, (300), 234 states have internal predecessors, (300), 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 19:10:24,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 300 transitions. [2021-12-19 19:10:24,127 INFO L704 BuchiCegarLoop]: Abstraction has 235 states and 300 transitions. [2021-12-19 19:10:24,127 INFO L587 BuchiCegarLoop]: Abstraction has 235 states and 300 transitions. [2021-12-19 19:10:24,127 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-19 19:10:24,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 235 states and 300 transitions. [2021-12-19 19:10:24,129 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 162 [2021-12-19 19:10:24,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:10:24,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:10:24,131 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:10:24,132 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:10:24,132 INFO L791 eck$LassoCheckResult]: Stem: 972#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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0; 879#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 880#L916 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 905#L909 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 906#L924 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 949#L517 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 922#L488 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 923#L935 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 913#L744-2 [2021-12-19 19:10:24,133 INFO L793 eck$LassoCheckResult]: Loop: 913#L744-2 assume !false; 934#L745 assume test_~splverifierCounter~0#1 < 4; 935#L746 test_~tmp~8#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 801#L754 assume !(0 != test_~tmp~8#1); 803#L754-2 test_~tmp___0~1#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 916#L764 assume !(0 != test_~tmp___0~1#1); 973#L764-2 test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 952#L774 assume 0 != test_~tmp___2~0#1; 800#L780-2 assume { :begin_inline_timeShift } true; 869#L546 assume !(0 != ~pumpRunning~0); 870#L546-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 886#L604 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret28#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 889#L578-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret40#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 875#L883-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 876#L888-1 isHighWaterLevel_#t~ret40#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret40#1;havoc isHighWaterLevel_#t~ret40#1; 824#L723-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~0#1 := 0; 825#L723-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 892#L729-1 processEnvironment__wrappee__methaneQuery_#t~ret28#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~4#1 := processEnvironment__wrappee__methaneQuery_#t~ret28#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret28#1; 871#L582-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 872#L570-2 assume { :end_inline_processEnvironment__wrappee__base } true; 821#L578-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 822#L604-1 assume { :end_inline_processEnvironment } true; 823#L553-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 954#L843-3 __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; 975#L946 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 867#L946-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 912#L563 assume { :end_inline_timeShift } true; 913#L744-2 [2021-12-19 19:10:24,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:10:24,133 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-19 19:10:24,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:10:24,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618632354] [2021-12-19 19:10:24,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:10:24,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:10:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:24,153 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:10:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:24,170 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:10:24,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:10:24,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1287856975, now seen corresponding path program 1 times [2021-12-19 19:10:24,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:10:24,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427130111] [2021-12-19 19:10:24,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:10:24,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:10:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:24,180 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:10:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:24,188 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:10:24,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:10:24,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1458632390, now seen corresponding path program 1 times [2021-12-19 19:10:24,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:10:24,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474305630] [2021-12-19 19:10:24,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:10:24,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:10:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:24,219 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:10:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:10:24,232 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:10:26,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 07:10:26 BoogieIcfgContainer [2021-12-19 19:10:26,623 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 19:10:26,623 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 19:10:26,623 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 19:10:26,623 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 19:10:26,624 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 19:10:26,625 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-19 19:10:26,693 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-19 19:10:26,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 19:10:26,694 INFO L158 Benchmark]: Toolchain (without parser) took 4221.04ms. Allocated memory was 81.8MB in the beginning and 157.3MB in the end (delta: 75.5MB). Free memory was 46.9MB in the beginning and 58.9MB in the end (delta: -12.1MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. [2021-12-19 19:10:26,694 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 81.8MB. Free memory was 54.3MB in the beginning and 54.2MB in the end (delta: 29.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 19:10:26,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.57ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 46.7MB in the beginning and 69.4MB in the end (delta: -22.6MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-12-19 19:10:26,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.90ms. Allocated memory is still 100.7MB. Free memory was 69.4MB in the beginning and 65.5MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-19 19:10:26,695 INFO L158 Benchmark]: Boogie Preprocessor took 27.62ms. Allocated memory is still 100.7MB. Free memory was 65.5MB in the beginning and 63.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:10:26,696 INFO L158 Benchmark]: RCFGBuilder took 463.87ms. Allocated memory is still 100.7MB. Free memory was 63.1MB in the beginning and 66.1MB in the end (delta: -3.0MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2021-12-19 19:10:26,696 INFO L158 Benchmark]: BuchiAutomizer took 3243.82ms. Allocated memory was 100.7MB in the beginning and 157.3MB in the end (delta: 56.6MB). Free memory was 65.7MB in the beginning and 62.0MB in the end (delta: 3.7MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. [2021-12-19 19:10:26,696 INFO L158 Benchmark]: Witness Printer took 70.26ms. Allocated memory is still 157.3MB. Free memory was 62.0MB in the beginning and 58.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:10:26,698 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 81.8MB. Free memory was 54.3MB in the beginning and 54.2MB in the end (delta: 29.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.57ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 46.7MB in the beginning and 69.4MB in the end (delta: -22.6MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.90ms. Allocated memory is still 100.7MB. Free memory was 69.4MB in the beginning and 65.5MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.62ms. Allocated memory is still 100.7MB. Free memory was 65.5MB in the beginning and 63.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 463.87ms. Allocated memory is still 100.7MB. Free memory was 63.1MB in the beginning and 66.1MB in the end (delta: -3.0MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 3243.82ms. Allocated memory was 100.7MB in the beginning and 157.3MB in the end (delta: 56.6MB). Free memory was 65.7MB in the beginning and 62.0MB in the end (delta: 3.7MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. * Witness Printer took 70.26ms. Allocated memory is still 157.3MB. Free memory was 62.0MB in the beginning and 58.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 235 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 235 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 866 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 866 mSDsluCounter, 544 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 102 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 442 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 744]: 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, tmp___0=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79fd20e3=0, tmp=0, methaneLevelCritical=0, retValue_acc=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f03c4c0=0, \result=0, tmp=0, \result=1, tmp=1, retValue_acc=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c81d9ac=0, tmp___2=29, methAndRunningLastTime=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48a102af=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@351bddf8=29, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ff96b45=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@482d9a0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d1c8386=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ad37a21=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@590c3f2d=0, tmp=0, head=0, tmp___1=0, NULL=0, retValue_acc=0, waterLevel=1, systemActive=1, \result=0, tmp___0=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 744]: 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; [L425] int cleanupTimeShifts = 4; [L538] int pumpRunning = 0; [L539] int systemActive = 1; [L800] int waterLevel = 1; [L801] int methaneLevelCritical = 0; [L929] int methAndRunningLastTime ; [L508] int retValue_acc ; [L509] int tmp ; [L513] FCALL select_helpers() [L514] FCALL select_features() [L515] CALL, EXPR valid_product() [L920] int retValue_acc ; [L923] retValue_acc = 1 [L924] return (retValue_acc); [L515] RET, EXPR valid_product() [L515] tmp = valid_product() [L517] COND TRUE \read(tmp) [L519] FCALL setup() [L520] CALL runTest() [L498] CALL __utac_acc__Specification2_spec__1() [L934] methAndRunningLastTime = 0 [L498] RET __utac_acc__Specification2_spec__1() [L499] CALL test() [L735] int splverifierCounter ; [L736] int tmp ; [L737] int tmp___0 ; [L738] int tmp___1 ; [L739] int tmp___2 ; [L742] splverifierCounter = 0 Loop: [L744] COND TRUE 1 [L746] COND TRUE splverifierCounter < 4 [L752] tmp = __VERIFIER_nondet_int() [L754] COND FALSE !(\read(tmp)) [L762] tmp___0 = __VERIFIER_nondet_int() [L764] COND FALSE !(\read(tmp___0)) [L772] tmp___2 = __VERIFIER_nondet_int() [L774] COND TRUE \read(tmp___2) [L787] CALL timeShift() [L546] COND FALSE !(\read(pumpRunning)) [L553] COND TRUE \read(systemActive) [L555] CALL processEnvironment() [L601] int tmp ; [L604] COND FALSE !(\read(pumpRunning)) [L619] CALL processEnvironment__wrappee__methaneQuery() [L575] int tmp ; [L578] COND TRUE ! pumpRunning [L580] CALL, EXPR isHighWaterLevel() [L715] int retValue_acc ; [L716] int tmp ; [L717] int tmp___0 ; [L721] CALL, EXPR isHighWaterSensorDry() [L880] int retValue_acc ; [L883] COND TRUE waterLevel < 2 [L884] retValue_acc = 1 [L885] return (retValue_acc); [L721] RET, EXPR isHighWaterSensorDry() [L721] tmp = isHighWaterSensorDry() [L723] COND TRUE \read(tmp) [L724] tmp___0 = 0 [L728] retValue_acc = tmp___0 [L729] return (retValue_acc); [L580] RET, EXPR isHighWaterLevel() [L580] tmp = isHighWaterLevel() [L582] COND FALSE !(\read(tmp)) [L588] FCALL processEnvironment__wrappee__base() [L619] RET processEnvironment__wrappee__methaneQuery() [L555] RET processEnvironment() [L561] CALL __utac_acc__Specification2_spec__2() [L939] int tmp ; [L940] int tmp___0 ; [L944] CALL, EXPR isMethaneLevelCritical() [L839] int retValue_acc ; [L842] retValue_acc = methaneLevelCritical [L843] return (retValue_acc); [L944] RET, EXPR isMethaneLevelCritical() [L944] tmp = isMethaneLevelCritical() [L946] COND FALSE !(\read(tmp)) [L962] methAndRunningLastTime = 0 [L561] RET __utac_acc__Specification2_spec__2() [L787] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-19 19:10:26,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)