./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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_product61.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 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:30,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:30,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:30,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:30,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:30,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:30,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:30,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:30,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:30,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:30,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:30,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:30,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:30,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:30,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:30,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:30,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:30,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:30,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:30,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:30,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:30,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:30,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:30,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:30,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:30,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:30,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:30,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:30,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:30,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:30,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:30,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:30,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:30,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:30,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:30,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:30,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:30,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:30,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:30,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:30,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:30,868 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:30,893 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:30,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:30,893 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:30,893 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:30,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:30,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:30,895 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:30,895 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:30,895 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:30,895 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:30,896 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:30,896 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:30,896 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:30,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:30,896 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:30,897 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:30,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:30,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:30,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:30,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:30,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:30,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:30,898 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:30,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:30,898 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:30,898 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:30,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:30,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:30,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:30,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:30,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:30,900 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:30,900 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d [2022-02-21 04:16:31,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:31,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:31,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:31,095 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:31,095 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:31,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2022-02-21 04:16:31,156 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/664cb6cac/29abdfb9d3ca497894f51e3563f7a9a5/FLAGd6221b60a [2022-02-21 04:16:31,511 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:31,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2022-02-21 04:16:31,519 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/664cb6cac/29abdfb9d3ca497894f51e3563f7a9a5/FLAGd6221b60a [2022-02-21 04:16:31,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/664cb6cac/29abdfb9d3ca497894f51e3563f7a9a5 [2022-02-21 04:16:31,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:31,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:31,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:31,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:31,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:31,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:31" (1/1) ... [2022-02-21 04:16:31,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ffe31b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:31, skipping insertion in model container [2022-02-21 04:16:31,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:31" (1/1) ... [2022-02-21 04:16:31,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:31,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:32,137 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_product61.cil.c[13371,13384] [2022-02-21 04:16:32,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:32,185 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:32,233 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_product61.cil.c[13371,13384] [2022-02-21 04:16:32,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:32,264 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:32,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:32 WrapperNode [2022-02-21 04:16:32,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:32,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:32,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:32,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:32,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:32" (1/1) ... [2022-02-21 04:16:32,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:32" (1/1) ... [2022-02-21 04:16:32,348 INFO L137 Inliner]: procedures = 58, calls = 161, calls flagged for inlining = 58, calls inlined = 174, statements flattened = 1269 [2022-02-21 04:16:32,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:32,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:32,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:32,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:32,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:32" (1/1) ... [2022-02-21 04:16:32,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:32" (1/1) ... [2022-02-21 04:16:32,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:32" (1/1) ... [2022-02-21 04:16:32,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:32" (1/1) ... [2022-02-21 04:16:32,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:32" (1/1) ... [2022-02-21 04:16:32,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:32" (1/1) ... [2022-02-21 04:16:32,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:32" (1/1) ... [2022-02-21 04:16:32,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:32,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:32,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:32,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:32,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:32" (1/1) ... [2022-02-21 04:16:32,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:32,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:32,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:16:32,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:16:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:32,550 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:32,559 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:33,203 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:33,216 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:33,218 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:33,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:33 BoogieIcfgContainer [2022-02-21 04:16:33,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:33,221 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:33,221 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:33,224 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:33,224 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:33,224 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:31" (1/3) ... [2022-02-21 04:16:33,225 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c173dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:33, skipping insertion in model container [2022-02-21 04:16:33,225 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:33,225 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:32" (2/3) ... [2022-02-21 04:16:33,225 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c173dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:33, skipping insertion in model container [2022-02-21 04:16:33,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:33,226 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:33" (3/3) ... [2022-02-21 04:16:33,227 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product61.cil.c [2022-02-21 04:16:33,264 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:33,265 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:33,265 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:33,265 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:33,265 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:33,265 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:33,265 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:33,265 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:33,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 322 states, 321 states have (on average 1.3582554517133956) internal successors, (436), 321 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:33,352 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 210 [2022-02-21 04:16:33,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:33,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:33,360 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:33,360 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:33,360 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:33,362 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 322 states, 321 states have (on average 1.3582554517133956) internal successors, (436), 321 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:33,384 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 210 [2022-02-21 04:16:33,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:33,386 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:33,387 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:33,387 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:33,391 INFO L791 eck$LassoCheckResult]: Stem: 309#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(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 199#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 286#L594true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 141#L587true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 10#L602true main_#t~ret6#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1; 31#L183true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 208#L155true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 113#L59true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 125#L617-2true [2022-02-21 04:16:33,392 INFO L793 eck$LassoCheckResult]: Loop: 125#L617-2true assume !false; 209#L618true assume test_~splverifierCounter~0#1 < 4; 256#L619true test_~tmp~5#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 56#L627true assume !(0 != test_~tmp~5#1); 66#L627-2true test_~tmp___0~1#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 112#L637true assume !(0 != test_~tmp___0~1#1); 44#L637-2true test_~tmp___2~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 130#L647true assume 0 != test_~tmp___2~0#1; 122#L653-2true assume { :begin_inline_timeShift } true; 79#L789true assume !(0 != ~pumpRunning~0); 210#L789-2true assume !(0 != ~systemActive~0); 237#L796-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 129#L720-5true __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 75#L70true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 182#L70-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 240#L806true assume { :end_inline_timeShift } true; 125#L617-2true [2022-02-21 04:16:33,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:33,397 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:16:33,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:33,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62578873] [2022-02-21 04:16:33,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:33,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:33,513 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:33,560 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:33,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:33,563 INFO L85 PathProgramCache]: Analyzing trace with hash 200498378, now seen corresponding path program 1 times [2022-02-21 04:16:33,563 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:33,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044937186] [2022-02-21 04:16:33,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:33,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:33,586 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:33,592 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:33,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:33,594 INFO L85 PathProgramCache]: Analyzing trace with hash 38210995, now seen corresponding path program 1 times [2022-02-21 04:16:33,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:33,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058314396] [2022-02-21 04:16:33,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:33,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:33,735 INFO L290 TraceCheckUtils]: 0: Hoare triple {330#true} 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(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; {332#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:33,736 INFO L290 TraceCheckUtils]: 1: Hoare triple {332#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; {332#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:33,736 INFO L290 TraceCheckUtils]: 2: Hoare triple {332#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {332#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:33,737 INFO L290 TraceCheckUtils]: 3: Hoare triple {332#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; {333#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:33,737 INFO L290 TraceCheckUtils]: 4: Hoare triple {333#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret6#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1; {334#(= |ULTIMATE.start_main_~tmp~1#1| ~systemActive~0)} is VALID [2022-02-21 04:16:33,738 INFO L290 TraceCheckUtils]: 5: Hoare triple {334#(= |ULTIMATE.start_main_~tmp~1#1| ~systemActive~0)} assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:33,738 INFO L290 TraceCheckUtils]: 6: Hoare triple {335#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:33,739 INFO L290 TraceCheckUtils]: 7: Hoare triple {335#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:33,739 INFO L290 TraceCheckUtils]: 8: Hoare triple {335#(not (= 0 ~systemActive~0))} assume !false; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:33,740 INFO L290 TraceCheckUtils]: 9: Hoare triple {335#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:33,740 INFO L290 TraceCheckUtils]: 10: Hoare triple {335#(not (= 0 ~systemActive~0))} test_~tmp~5#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:33,741 INFO L290 TraceCheckUtils]: 11: Hoare triple {335#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~5#1); {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:33,741 INFO L290 TraceCheckUtils]: 12: Hoare triple {335#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:33,742 INFO L290 TraceCheckUtils]: 13: Hoare triple {335#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:33,742 INFO L290 TraceCheckUtils]: 14: Hoare triple {335#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:33,742 INFO L290 TraceCheckUtils]: 15: Hoare triple {335#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:33,743 INFO L290 TraceCheckUtils]: 16: Hoare triple {335#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:33,743 INFO L290 TraceCheckUtils]: 17: Hoare triple {335#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:33,744 INFO L290 TraceCheckUtils]: 18: Hoare triple {335#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {331#false} is VALID [2022-02-21 04:16:33,744 INFO L290 TraceCheckUtils]: 19: Hoare triple {331#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {331#false} is VALID [2022-02-21 04:16:33,745 INFO L290 TraceCheckUtils]: 20: Hoare triple {331#false} __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; {331#false} is VALID [2022-02-21 04:16:33,745 INFO L290 TraceCheckUtils]: 21: Hoare triple {331#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; {331#false} is VALID [2022-02-21 04:16:33,745 INFO L290 TraceCheckUtils]: 22: Hoare triple {331#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {331#false} is VALID [2022-02-21 04:16:33,746 INFO L290 TraceCheckUtils]: 23: Hoare triple {331#false} assume { :end_inline_timeShift } true; {331#false} is VALID [2022-02-21 04:16:33,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:33,747 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:33,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058314396] [2022-02-21 04:16:33,749 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058314396] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:33,749 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:33,749 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:33,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561106243] [2022-02-21 04:16:33,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:33,878 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:33,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:33,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:33,902 INFO L87 Difference]: Start difference. First operand has 322 states, 321 states have (on average 1.3582554517133956) internal successors, (436), 321 states have internal predecessors, (436), 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) [2022-02-21 04:16:34,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:34,502 INFO L93 Difference]: Finished difference Result 319 states and 422 transitions. [2022-02-21 04:16:34,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:16:34,503 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-21 04:16:34,525 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:34,532 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 422 transitions. [2022-02-21 04:16:34,544 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 206 [2022-02-21 04:16:34,559 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 309 states and 412 transitions. [2022-02-21 04:16:34,561 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 309 [2022-02-21 04:16:34,563 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 309 [2022-02-21 04:16:34,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 309 states and 412 transitions. [2022-02-21 04:16:34,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:34,565 INFO L681 BuchiCegarLoop]: Abstraction has 309 states and 412 transitions. [2022-02-21 04:16:34,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states and 412 transitions. [2022-02-21 04:16:34,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2022-02-21 04:16:34,591 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:34,592 INFO L82 GeneralOperation]: Start isEquivalent. First operand 309 states and 412 transitions. Second operand has 309 states, 309 states have (on average 1.3333333333333333) internal successors, (412), 308 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:34,593 INFO L74 IsIncluded]: Start isIncluded. First operand 309 states and 412 transitions. Second operand has 309 states, 309 states have (on average 1.3333333333333333) internal successors, (412), 308 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:34,595 INFO L87 Difference]: Start difference. First operand 309 states and 412 transitions. Second operand has 309 states, 309 states have (on average 1.3333333333333333) internal successors, (412), 308 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:34,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:34,602 INFO L93 Difference]: Finished difference Result 309 states and 412 transitions. [2022-02-21 04:16:34,603 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 412 transitions. [2022-02-21 04:16:34,604 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:34,604 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:34,605 INFO L74 IsIncluded]: Start isIncluded. First operand has 309 states, 309 states have (on average 1.3333333333333333) internal successors, (412), 308 states have internal predecessors, (412), 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 309 states and 412 transitions. [2022-02-21 04:16:34,606 INFO L87 Difference]: Start difference. First operand has 309 states, 309 states have (on average 1.3333333333333333) internal successors, (412), 308 states have internal predecessors, (412), 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 309 states and 412 transitions. [2022-02-21 04:16:34,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:34,612 INFO L93 Difference]: Finished difference Result 309 states and 412 transitions. [2022-02-21 04:16:34,612 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 412 transitions. [2022-02-21 04:16:34,613 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:34,613 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:34,613 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:34,613 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:34,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 309 states have (on average 1.3333333333333333) internal successors, (412), 308 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:34,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 412 transitions. [2022-02-21 04:16:34,621 INFO L704 BuchiCegarLoop]: Abstraction has 309 states and 412 transitions. [2022-02-21 04:16:34,621 INFO L587 BuchiCegarLoop]: Abstraction has 309 states and 412 transitions. [2022-02-21 04:16:34,621 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:34,621 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 309 states and 412 transitions. [2022-02-21 04:16:34,623 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 206 [2022-02-21 04:16:34,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:34,623 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:34,623 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:34,623 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] [2022-02-21 04:16:34,624 INFO L791 eck$LassoCheckResult]: Stem: 967#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(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 924#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 925#L594 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 873#L587 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 674#L602 main_#t~ret6#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1; 675#L183 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 720#L155 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 845#L59 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 846#L617-2 [2022-02-21 04:16:34,624 INFO L793 eck$LassoCheckResult]: Loop: 846#L617-2 assume !false; 856#L618 assume test_~splverifierCounter~0#1 < 4; 928#L619 test_~tmp~5#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 759#L627 assume !(0 != test_~tmp~5#1); 761#L627-2 test_~tmp___0~1#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 776#L637 assume !(0 != test_~tmp___0~1#1); 737#L637-2 test_~tmp___2~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 738#L647 assume 0 != test_~tmp___2~0#1; 748#L653-2 assume { :begin_inline_timeShift } true; 798#L789 assume !(0 != ~pumpRunning~0); 734#L789-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 739#L873 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret44#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 721#L720 isMethaneAlarm_#t~ret44#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret44#1;havoc isMethaneAlarm_#t~ret44#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; 722#L934 processEnvironment_#t~ret42#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~8#1 := processEnvironment_#t~ret42#1;havoc processEnvironment_#t~ret42#1; 706#L877 assume 0 != processEnvironment_~tmp~8#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 707#L924 assume { :end_inline_deactivatePump } true; 725#L873-1 assume { :end_inline_processEnvironment } true; 949#L796-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 861#L720-5 __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 792#L70 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 793#L70-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 910#L806 assume { :end_inline_timeShift } true; 846#L617-2 [2022-02-21 04:16:34,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:34,625 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:16:34,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:34,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346811976] [2022-02-21 04:16:34,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:34,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:34,635 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:34,644 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:34,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:34,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1409637101, now seen corresponding path program 1 times [2022-02-21 04:16:34,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:34,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24698315] [2022-02-21 04:16:34,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:34,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:34,664 INFO L290 TraceCheckUtils]: 0: Hoare triple {1591#true} assume !false; {1591#true} is VALID [2022-02-21 04:16:34,664 INFO L290 TraceCheckUtils]: 1: Hoare triple {1591#true} assume test_~splverifierCounter~0#1 < 4; {1591#true} is VALID [2022-02-21 04:16:34,664 INFO L290 TraceCheckUtils]: 2: Hoare triple {1591#true} test_~tmp~5#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; {1591#true} is VALID [2022-02-21 04:16:34,665 INFO L290 TraceCheckUtils]: 3: Hoare triple {1591#true} assume !(0 != test_~tmp~5#1); {1591#true} is VALID [2022-02-21 04:16:34,665 INFO L290 TraceCheckUtils]: 4: Hoare triple {1591#true} test_~tmp___0~1#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; {1591#true} is VALID [2022-02-21 04:16:34,665 INFO L290 TraceCheckUtils]: 5: Hoare triple {1591#true} assume !(0 != test_~tmp___0~1#1); {1591#true} is VALID [2022-02-21 04:16:34,665 INFO L290 TraceCheckUtils]: 6: Hoare triple {1591#true} test_~tmp___2~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {1591#true} is VALID [2022-02-21 04:16:34,665 INFO L290 TraceCheckUtils]: 7: Hoare triple {1591#true} assume 0 != test_~tmp___2~0#1; {1591#true} is VALID [2022-02-21 04:16:34,665 INFO L290 TraceCheckUtils]: 8: Hoare triple {1591#true} assume { :begin_inline_timeShift } true; {1591#true} is VALID [2022-02-21 04:16:34,666 INFO L290 TraceCheckUtils]: 9: Hoare triple {1591#true} assume !(0 != ~pumpRunning~0); {1593#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:34,666 INFO L290 TraceCheckUtils]: 10: Hoare triple {1593#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; {1593#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:34,667 INFO L290 TraceCheckUtils]: 11: Hoare triple {1593#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret44#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {1592#false} is VALID [2022-02-21 04:16:34,667 INFO L290 TraceCheckUtils]: 12: Hoare triple {1592#false} isMethaneAlarm_#t~ret44#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret44#1;havoc isMethaneAlarm_#t~ret44#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; {1592#false} is VALID [2022-02-21 04:16:34,667 INFO L290 TraceCheckUtils]: 13: Hoare triple {1592#false} processEnvironment_#t~ret42#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~8#1 := processEnvironment_#t~ret42#1;havoc processEnvironment_#t~ret42#1; {1592#false} is VALID [2022-02-21 04:16:34,667 INFO L290 TraceCheckUtils]: 14: Hoare triple {1592#false} assume 0 != processEnvironment_~tmp~8#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {1592#false} is VALID [2022-02-21 04:16:34,667 INFO L290 TraceCheckUtils]: 15: Hoare triple {1592#false} assume { :end_inline_deactivatePump } true; {1592#false} is VALID [2022-02-21 04:16:34,667 INFO L290 TraceCheckUtils]: 16: Hoare triple {1592#false} assume { :end_inline_processEnvironment } true; {1592#false} is VALID [2022-02-21 04:16:34,668 INFO L290 TraceCheckUtils]: 17: Hoare triple {1592#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {1592#false} is VALID [2022-02-21 04:16:34,668 INFO L290 TraceCheckUtils]: 18: Hoare triple {1592#false} __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; {1592#false} is VALID [2022-02-21 04:16:34,668 INFO L290 TraceCheckUtils]: 19: Hoare triple {1592#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; {1592#false} is VALID [2022-02-21 04:16:34,668 INFO L290 TraceCheckUtils]: 20: Hoare triple {1592#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {1592#false} is VALID [2022-02-21 04:16:34,668 INFO L290 TraceCheckUtils]: 21: Hoare triple {1592#false} assume { :end_inline_timeShift } true; {1592#false} is VALID [2022-02-21 04:16:34,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:34,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:34,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24698315] [2022-02-21 04:16:34,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24698315] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:34,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:34,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:16:34,670 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342755397] [2022-02-21 04:16:34,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:34,670 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:34,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:34,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:16:34,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:16:34,671 INFO L87 Difference]: Start difference. First operand 309 states and 412 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:34,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:34,939 INFO L93 Difference]: Finished difference Result 319 states and 405 transitions. [2022-02-21 04:16:34,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:16:34,939 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:34,952 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:34,953 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 405 transitions. [2022-02-21 04:16:34,959 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 218 [2022-02-21 04:16:34,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 319 states and 405 transitions. [2022-02-21 04:16:34,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 319 [2022-02-21 04:16:34,966 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 319 [2022-02-21 04:16:34,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 319 states and 405 transitions. [2022-02-21 04:16:34,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:34,967 INFO L681 BuchiCegarLoop]: Abstraction has 319 states and 405 transitions. [2022-02-21 04:16:34,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states and 405 transitions. [2022-02-21 04:16:34,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2022-02-21 04:16:34,987 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:34,988 INFO L82 GeneralOperation]: Start isEquivalent. First operand 319 states and 405 transitions. Second operand has 319 states, 319 states have (on average 1.2695924764890283) internal successors, (405), 318 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:34,988 INFO L74 IsIncluded]: Start isIncluded. First operand 319 states and 405 transitions. Second operand has 319 states, 319 states have (on average 1.2695924764890283) internal successors, (405), 318 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:34,989 INFO L87 Difference]: Start difference. First operand 319 states and 405 transitions. Second operand has 319 states, 319 states have (on average 1.2695924764890283) internal successors, (405), 318 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:34,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:34,995 INFO L93 Difference]: Finished difference Result 319 states and 405 transitions. [2022-02-21 04:16:34,995 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 405 transitions. [2022-02-21 04:16:34,995 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:34,995 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:34,996 INFO L74 IsIncluded]: Start isIncluded. First operand has 319 states, 319 states have (on average 1.2695924764890283) internal successors, (405), 318 states have internal predecessors, (405), 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 319 states and 405 transitions. [2022-02-21 04:16:34,997 INFO L87 Difference]: Start difference. First operand has 319 states, 319 states have (on average 1.2695924764890283) internal successors, (405), 318 states have internal predecessors, (405), 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 319 states and 405 transitions. [2022-02-21 04:16:35,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:35,002 INFO L93 Difference]: Finished difference Result 319 states and 405 transitions. [2022-02-21 04:16:35,003 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 405 transitions. [2022-02-21 04:16:35,003 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:35,003 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:35,003 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:35,003 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:35,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 319 states have (on average 1.2695924764890283) internal successors, (405), 318 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:35,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 405 transitions. [2022-02-21 04:16:35,010 INFO L704 BuchiCegarLoop]: Abstraction has 319 states and 405 transitions. [2022-02-21 04:16:35,010 INFO L587 BuchiCegarLoop]: Abstraction has 319 states and 405 transitions. [2022-02-21 04:16:35,010 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:35,010 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 319 states and 405 transitions. [2022-02-21 04:16:35,011 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 218 [2022-02-21 04:16:35,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:35,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:35,011 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:35,011 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:35,012 INFO L791 eck$LassoCheckResult]: Stem: 2175#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(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2127#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 2128#L594 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2086#L587 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1922#L602 main_#t~ret6#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1; 1923#L183 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 1959#L155 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2059#L59 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2060#L617-2 [2022-02-21 04:16:35,013 INFO L793 eck$LassoCheckResult]: Loop: 2060#L617-2 assume !false; 2069#L618 assume test_~splverifierCounter~0#1 < 4; 2132#L619 test_~tmp~5#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 1990#L627 assume !(0 != test_~tmp~5#1); 1992#L627-2 test_~tmp___0~1#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 2009#L637 assume !(0 != test_~tmp___0~1#1); 1974#L637-2 test_~tmp___2~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 1975#L647 assume 0 != test_~tmp___2~0#1; 1984#L653-2 assume { :begin_inline_timeShift } true; 2027#L789 assume !(0 != ~pumpRunning~0); 2028#L789-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 1976#L873 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret41#1, processEnvironment__wrappee__methaneQuery_~tmp~7#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~7#1; 1977#L847-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1981#L821-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~10#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~10#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1982#L760-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 2134#L765-3 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~10#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 2135#L992-9 assume 0 != isHighWaterLevel_~tmp~10#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2122#L992-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 2123#L998-3 processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 2118#L825-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2119#L813-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1967#L821-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1964#L847-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1965#L873-1 assume { :end_inline_processEnvironment } true; 2151#L796-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 2075#L720-5 __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 2021#L70 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 2022#L70-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2116#L806 assume { :end_inline_timeShift } true; 2060#L617-2 [2022-02-21 04:16:35,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:35,016 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:16:35,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:35,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704138128] [2022-02-21 04:16:35,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:35,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:35,024 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:35,031 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:35,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:35,032 INFO L85 PathProgramCache]: Analyzing trace with hash 523541246, now seen corresponding path program 1 times [2022-02-21 04:16:35,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:35,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208381180] [2022-02-21 04:16:35,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:35,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:35,043 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:35,060 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:35,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:35,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1429957813, now seen corresponding path program 1 times [2022-02-21 04:16:35,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:35,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573987414] [2022-02-21 04:16:35,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:35,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:35,080 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:35,121 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:37,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:37 BoogieIcfgContainer [2022-02-21 04:16:37,736 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:37,737 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:37,737 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:37,737 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:37,737 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:33" (3/4) ... [2022-02-21 04:16:37,739 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:37,778 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:37,778 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:37,779 INFO L158 Benchmark]: Toolchain (without parser) took 5850.75ms. Allocated memory was 81.8MB in the beginning and 182.5MB in the end (delta: 100.7MB). Free memory was 50.9MB in the beginning and 147.8MB in the end (delta: -96.9MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-02-21 04:16:37,779 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 48.4MB in the beginning and 48.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:37,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.11ms. Allocated memory was 81.8MB in the beginning and 111.1MB in the end (delta: 29.4MB). Free memory was 50.7MB in the beginning and 85.2MB in the end (delta: -34.5MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2022-02-21 04:16:37,780 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.72ms. Allocated memory is still 111.1MB. Free memory was 84.7MB in the beginning and 77.9MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:16:37,780 INFO L158 Benchmark]: Boogie Preprocessor took 36.60ms. Allocated memory is still 111.1MB. Free memory was 77.9MB in the beginning and 74.2MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:37,781 INFO L158 Benchmark]: RCFGBuilder took 833.70ms. Allocated memory is still 111.1MB. Free memory was 74.2MB in the beginning and 83.4MB in the end (delta: -9.1MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. [2022-02-21 04:16:37,781 INFO L158 Benchmark]: BuchiAutomizer took 4515.02ms. Allocated memory was 111.1MB in the beginning and 182.5MB in the end (delta: 71.3MB). Free memory was 83.4MB in the beginning and 150.9MB in the end (delta: -67.5MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. [2022-02-21 04:16:37,781 INFO L158 Benchmark]: Witness Printer took 41.37ms. Allocated memory is still 182.5MB. Free memory was 150.9MB in the beginning and 147.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:37,783 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 48.4MB in the beginning and 48.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.11ms. Allocated memory was 81.8MB in the beginning and 111.1MB in the end (delta: 29.4MB). Free memory was 50.7MB in the beginning and 85.2MB in the end (delta: -34.5MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.72ms. Allocated memory is still 111.1MB. Free memory was 84.7MB in the beginning and 77.9MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.60ms. Allocated memory is still 111.1MB. Free memory was 77.9MB in the beginning and 74.2MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 833.70ms. Allocated memory is still 111.1MB. Free memory was 74.2MB in the beginning and 83.4MB in the end (delta: -9.1MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 4515.02ms. Allocated memory was 111.1MB in the beginning and 182.5MB in the end (delta: 71.3MB). Free memory was 83.4MB in the beginning and 150.9MB in the end (delta: -67.5MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. * Witness Printer took 41.37ms. Allocated memory is still 182.5MB. Free memory was 150.9MB in the beginning and 147.8MB 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 319 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 319 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1485 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1485 mSDsluCounter, 850 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 135 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 715 mSDtfsCounter, 50 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: 617]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f3eabd4=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12f331cc=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39d28f92=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75623259=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57812f36=0, tmp___0=0, tmp=0, methaneLevelCritical=0, retValue_acc=0, tmp=0, \result=0, retValue_acc=1, retValue_acc=0, \result=1, \result=1, tmp=1, retValue_acc=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2992c195=0, tmp___2=29, methAndRunningLastTime=0, cleanupTimeShifts=4, \result=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30f47bf7=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6693aba=0, tmp=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cb4527c=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55fcc877=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f97b594=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 617]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int methAndRunningLastTime ; [L92] int cleanupTimeShifts = 4; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L677] int waterLevel = 1; [L678] int methaneLevelCritical = 0; [L782] int pumpRunning = 0; [L783] int systemActive = 1; [L174] int retValue_acc ; [L175] int tmp ; [L179] FCALL select_helpers() [L180] FCALL select_features() [L181] CALL, EXPR valid_product() [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] return (retValue_acc); [L181] RET, EXPR valid_product() [L181] tmp = valid_product() [L183] COND TRUE \read(tmp) [L185] FCALL setup() [L186] CALL runTest() [L164] CALL __utac_acc__Specification2_spec__1() [L58] methAndRunningLastTime = 0 [L164] RET __utac_acc__Specification2_spec__1() [L165] CALL test() [L608] int splverifierCounter ; [L609] int tmp ; [L610] int tmp___0 ; [L611] int tmp___1 ; [L612] int tmp___2 ; [L615] splverifierCounter = 0 Loop: [L617] COND TRUE 1 [L619] COND TRUE splverifierCounter < 4 [L625] tmp = __VERIFIER_nondet_int() [L627] COND FALSE !(\read(tmp)) [L635] tmp___0 = __VERIFIER_nondet_int() [L637] COND FALSE !(\read(tmp___0)) [L645] tmp___2 = __VERIFIER_nondet_int() [L647] COND TRUE \read(tmp___2) [L660] CALL timeShift() [L789] COND FALSE !(\read(pumpRunning)) [L796] COND TRUE \read(systemActive) [L798] CALL processEnvironment() [L870] int tmp ; [L873] COND FALSE !(\read(pumpRunning)) [L888] CALL processEnvironment__wrappee__methaneQuery() [L844] int tmp ; [L847] COND FALSE !(\read(pumpRunning)) [L862] CALL processEnvironment__wrappee__highWaterSensor() [L818] int tmp ; [L821] COND TRUE ! pumpRunning [L823] CALL, EXPR isHighWaterLevel() [L984] int retValue_acc ; [L985] int tmp ; [L986] int tmp___0 ; [L990] CALL, EXPR isHighWaterSensorDry() [L757] int retValue_acc ; [L760] COND TRUE waterLevel < 2 [L761] retValue_acc = 1 [L762] return (retValue_acc); [L990] RET, EXPR isHighWaterSensorDry() [L990] tmp = isHighWaterSensorDry() [L992] COND TRUE \read(tmp) [L993] tmp___0 = 0 [L997] retValue_acc = tmp___0 [L998] return (retValue_acc); [L823] RET, EXPR isHighWaterLevel() [L823] tmp = isHighWaterLevel() [L825] COND FALSE !(\read(tmp)) [L831] FCALL processEnvironment__wrappee__base() [L862] RET processEnvironment__wrappee__highWaterSensor() [L888] RET processEnvironment__wrappee__methaneQuery() [L798] RET processEnvironment() [L804] CALL __utac_acc__Specification2_spec__2() [L63] int tmp ; [L64] int tmp___0 ; [L68] CALL, EXPR isMethaneLevelCritical() [L716] int retValue_acc ; [L719] retValue_acc = methaneLevelCritical [L720] return (retValue_acc); [L68] RET, EXPR isMethaneLevelCritical() [L68] tmp = isMethaneLevelCritical() [L70] COND FALSE !(\read(tmp)) [L86] methAndRunningLastTime = 0 [L804] RET __utac_acc__Specification2_spec__2() [L660] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:37,829 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)