./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product28.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 5673de8ec613c5b3f0b3053cf7689d6b23a316a5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 16:23:21,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:23:21,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:23:21,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:23:21,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:23:21,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:23:21,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:23:21,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:23:21,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:23:21,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:23:21,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:23:21,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:23:21,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:23:21,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:23:21,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:23:21,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:23:21,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:23:21,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:23:21,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:23:21,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:23:21,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:23:21,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:23:21,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:23:21,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:23:21,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:23:21,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:23:21,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:23:21,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:23:21,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:23:21,928 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:23:21,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:23:21,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:23:21,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:23:21,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:23:21,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:23:21,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:23:21,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:23:21,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:23:21,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:23:21,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:23:21,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:23:21,941 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:23:21,966 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:23:21,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:23:21,967 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:23:21,967 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:23:21,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:23:21,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:23:21,969 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:23:21,969 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:23:21,970 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:23:21,970 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:23:21,970 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:23:21,971 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:23:21,971 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:23:21,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:23:21,971 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:23:21,971 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:23:21,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:23:21,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:23:21,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:23:21,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:23:21,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:23:21,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:23:21,972 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:23:21,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:23:21,973 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:23:21,973 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:23:21,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:23:21,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:23:21,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:23:21,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:23:21,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:23:21,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:23:21,974 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:23:21,975 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5673de8ec613c5b3f0b3053cf7689d6b23a316a5 [2021-08-27 16:23:22,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:23:22,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:23:22,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:23:22,282 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:23:22,283 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:23:22,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c [2021-08-27 16:23:22,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3802484c1/9a4625a3288c41409d7ff101214961b0/FLAG1e7886ec2 [2021-08-27 16:23:22,703 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:23:22,704 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c [2021-08-27 16:23:22,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3802484c1/9a4625a3288c41409d7ff101214961b0/FLAG1e7886ec2 [2021-08-27 16:23:22,720 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3802484c1/9a4625a3288c41409d7ff101214961b0 [2021-08-27 16:23:22,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:23:22,722 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:23:22,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:23:22,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:23:22,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:23:22,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:23:22" (1/1) ... [2021-08-27 16:23:22,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a5d7047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:22, skipping insertion in model container [2021-08-27 16:23:22,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:23:22" (1/1) ... [2021-08-27 16:23:22,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:23:22,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:23:22,974 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c[14807,14820] [2021-08-27 16:23:22,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:23:23,007 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:23:23,063 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c[14807,14820] [2021-08-27 16:23:23,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:23:23,095 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:23:23,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:23 WrapperNode [2021-08-27 16:23:23,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:23:23,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:23:23,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:23:23,097 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:23:23,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:23" (1/1) ... [2021-08-27 16:23:23,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:23" (1/1) ... [2021-08-27 16:23:23,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:23:23,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:23:23,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:23:23,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:23:23,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:23" (1/1) ... [2021-08-27 16:23:23,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:23" (1/1) ... [2021-08-27 16:23:23,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:23" (1/1) ... [2021-08-27 16:23:23,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:23" (1/1) ... [2021-08-27 16:23:23,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:23" (1/1) ... [2021-08-27 16:23:23,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:23" (1/1) ... [2021-08-27 16:23:23,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:23" (1/1) ... [2021-08-27 16:23:23,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:23:23,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:23:23,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:23:23,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:23:23,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:23" (1/1) ... [2021-08-27 16:23:23,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:23:23,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:23:23,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 16:23:23,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 16:23:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:23:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:23:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:23:23,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:23:24,020 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:23:24,021 INFO L299 CfgBuilder]: Removed 116 assume(true) statements. [2021-08-27 16:23:24,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:23:24 BoogieIcfgContainer [2021-08-27 16:23:24,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:23:24,023 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:23:24,023 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:23:24,024 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:23:24,025 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:23:24,025 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:23:22" (1/3) ... [2021-08-27 16:23:24,026 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d893574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:23:24, skipping insertion in model container [2021-08-27 16:23:24,026 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:23:24,026 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:23:23" (2/3) ... [2021-08-27 16:23:24,026 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d893574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:23:24, skipping insertion in model container [2021-08-27 16:23:24,026 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:23:24,026 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:23:24" (3/3) ... [2021-08-27 16:23:24,027 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product28.cil.c [2021-08-27 16:23:24,065 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:23:24,067 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:23:24,067 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:23:24,067 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:23:24,067 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:23:24,067 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:23:24,067 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:23:24,067 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:23:24,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 83 states, 82 states have (on average 1.5) internal successors, (123), 82 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:23:24,107 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-08-27 16:23:24,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:23:24,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:23:24,113 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:23:24,114 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:23:24,114 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:23:24,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 83 states, 82 states have (on average 1.5) internal successors, (123), 82 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:23:24,120 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-08-27 16:23:24,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:23:24,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:23:24,121 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:23:24,121 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:23:24,125 INFO L791 eck$LassoCheckResult]: Stem: 65#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 49#L-1true havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 71#L680true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 39#L688true main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 84#L278true assume 0 != main_~tmp~1; 26#L250true ~switchedOnBeforeTS~0 := 0; 23#L146true havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 58#L167-1true [2021-08-27 16:23:24,131 INFO L793 eck$LassoCheckResult]: Loop: 58#L167-1true assume !false; 61#L913true assume test_~splverifierCounter~0 < 4; 14#L914true test_~tmp~8 := test_#t~nondet77;havoc test_#t~nondet77; 68#L922true assume !(0 != test_~tmp~8); 13#L922-1true test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 19#L932true assume !(0 != test_~tmp___0~2); 77#L932-1true test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 41#L942true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 82#L950-1true havoc __utac_acc__Specification5_spec__2_#t~ret17;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 59#L819true __utac_acc__Specification5_spec__2_#t~ret17 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17;havoc __utac_acc__Specification5_spec__2_#t~ret17; 76#L156true assume !(0 != ~pumpRunning~0); 57#L716true assume !(0 != ~systemActive~0); 78#L723true havoc __utac_acc__Specification5_spec__3_#t~ret18, __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 18#L124true __utac_acc__Specification5_spec__3_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret18;havoc __utac_acc__Specification5_spec__3_#t~ret18; 24#L167true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 58#L167-1true [2021-08-27 16:23:24,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:23:24,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-27 16:23:24,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:23:24,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740358854] [2021-08-27 16:23:24,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:23:24,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:23:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:24,326 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:23:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:24,482 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:23:24,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:23:24,484 INFO L82 PathProgramCache]: Analyzing trace with hash 675133686, now seen corresponding path program 1 times [2021-08-27 16:23:24,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:23:24,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248589202] [2021-08-27 16:23:24,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:23:24,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:23:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:23:24,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:23:24,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:23:24,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248589202] [2021-08-27 16:23:24,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248589202] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:23:24,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:23:24,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:23:24,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504206838] [2021-08-27 16:23:24,544 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:23:24,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:23:24,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:23:24,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:23:24,568 INFO L87 Difference]: Start difference. First operand has 83 states, 82 states have (on average 1.5) internal successors, (123), 82 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:23:24,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:23:24,627 INFO L93 Difference]: Finished difference Result 159 states and 221 transitions. [2021-08-27 16:23:24,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:23:24,629 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 221 transitions. [2021-08-27 16:23:24,636 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 102 [2021-08-27 16:23:24,641 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 145 states and 206 transitions. [2021-08-27 16:23:24,642 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 145 [2021-08-27 16:23:24,644 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 145 [2021-08-27 16:23:24,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 206 transitions. [2021-08-27 16:23:24,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:23:24,646 INFO L681 BuchiCegarLoop]: Abstraction has 145 states and 206 transitions. [2021-08-27 16:23:24,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 206 transitions. [2021-08-27 16:23:24,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 143. [2021-08-27 16:23:24,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 143 states have (on average 1.4195804195804196) internal successors, (203), 142 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:23:24,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 203 transitions. [2021-08-27 16:23:24,681 INFO L704 BuchiCegarLoop]: Abstraction has 143 states and 203 transitions. [2021-08-27 16:23:24,681 INFO L587 BuchiCegarLoop]: Abstraction has 143 states and 203 transitions. [2021-08-27 16:23:24,682 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:23:24,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 143 states and 203 transitions. [2021-08-27 16:23:24,685 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2021-08-27 16:23:24,685 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:23:24,685 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:23:24,687 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:23:24,687 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:23:24,687 INFO L791 eck$LassoCheckResult]: Stem: 328#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 317#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 318#L680 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 305#L688 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 306#L278 assume 0 != main_~tmp~1; 290#L250 ~switchedOnBeforeTS~0 := 0; 284#L146 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 285#L167-1 [2021-08-27 16:23:24,688 INFO L793 eck$LassoCheckResult]: Loop: 285#L167-1 assume !false; 367#L913 assume test_~splverifierCounter~0 < 4; 366#L914 test_~tmp~8 := test_#t~nondet77;havoc test_#t~nondet77; 365#L922 assume !(0 != test_~tmp~8); 363#L922-1 test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 362#L932 assume !(0 != test_~tmp___0~2); 360#L932-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 359#L942 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 309#L950-1 havoc __utac_acc__Specification5_spec__2_#t~ret17;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 351#L819 __utac_acc__Specification5_spec__2_#t~ret17 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17;havoc __utac_acc__Specification5_spec__2_#t~ret17; 340#L156 assume !(0 != ~pumpRunning~0); 322#L716 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 323#L748 assume !(0 != ~pumpRunning~0); 373#L723 havoc __utac_acc__Specification5_spec__3_#t~ret18, __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 372#L124 __utac_acc__Specification5_spec__3_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret18;havoc __utac_acc__Specification5_spec__3_#t~ret18; 370#L167 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 285#L167-1 [2021-08-27 16:23:24,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:23:24,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-27 16:23:24,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:23:24,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960870217] [2021-08-27 16:23:24,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:23:24,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:23:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:24,738 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:23:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:24,806 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:23:24,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:23:24,808 INFO L82 PathProgramCache]: Analyzing trace with hash -572685309, now seen corresponding path program 1 times [2021-08-27 16:23:24,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:23:24,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509898580] [2021-08-27 16:23:24,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:23:24,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:23:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:24,815 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:23:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:24,837 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:23:24,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:23:24,840 INFO L82 PathProgramCache]: Analyzing trace with hash -747445943, now seen corresponding path program 1 times [2021-08-27 16:23:24,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:23:24,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253944210] [2021-08-27 16:23:24,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:23:24,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:23:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:23:24,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:23:24,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:23:24,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253944210] [2021-08-27 16:23:24,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253944210] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:23:24,903 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:23:24,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:23:24,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823146848] [2021-08-27 16:23:25,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:23:25,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 16:23:25,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 16:23:25,056 INFO L87 Difference]: Start difference. First operand 143 states and 203 transitions. cyclomatic complexity: 63 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:23:25,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:23:25,153 INFO L93 Difference]: Finished difference Result 390 states and 556 transitions. [2021-08-27 16:23:25,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 16:23:25,153 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 390 states and 556 transitions. [2021-08-27 16:23:25,156 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 254 [2021-08-27 16:23:25,158 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 390 states to 390 states and 556 transitions. [2021-08-27 16:23:25,158 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 390 [2021-08-27 16:23:25,158 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 390 [2021-08-27 16:23:25,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 390 states and 556 transitions. [2021-08-27 16:23:25,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:23:25,160 INFO L681 BuchiCegarLoop]: Abstraction has 390 states and 556 transitions. [2021-08-27 16:23:25,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states and 556 transitions. [2021-08-27 16:23:25,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 279. [2021-08-27 16:23:25,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 279 states have (on average 1.4014336917562724) internal successors, (391), 278 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:23:25,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 391 transitions. [2021-08-27 16:23:25,168 INFO L704 BuchiCegarLoop]: Abstraction has 279 states and 391 transitions. [2021-08-27 16:23:25,168 INFO L587 BuchiCegarLoop]: Abstraction has 279 states and 391 transitions. [2021-08-27 16:23:25,168 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 16:23:25,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 391 transitions. [2021-08-27 16:23:25,169 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 200 [2021-08-27 16:23:25,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:23:25,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:23:25,170 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:23:25,170 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:23:25,170 INFO L791 eck$LassoCheckResult]: Stem: 887#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 870#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 871#L680 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 857#L688 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 858#L278 assume 0 != main_~tmp~1; 841#L250 ~switchedOnBeforeTS~0 := 0; 835#L146 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 836#L167-1 [2021-08-27 16:23:25,170 INFO L793 eck$LassoCheckResult]: Loop: 836#L167-1 assume !false; 879#L913 assume test_~splverifierCounter~0 < 4; 818#L914 test_~tmp~8 := test_#t~nondet77;havoc test_#t~nondet77; 819#L922 assume !(0 != test_~tmp~8); 816#L922-1 test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 817#L932 assume !(0 != test_~tmp___0~2); 830#L932-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 859#L942 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 861#L950-1 havoc __utac_acc__Specification5_spec__2_#t~ret17;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 993#L819 __utac_acc__Specification5_spec__2_#t~ret17 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17;havoc __utac_acc__Specification5_spec__2_#t~ret17; 991#L156 assume !(0 != ~pumpRunning~0); 877#L716 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 878#L748 assume !(0 != ~pumpRunning~0); 986#L723 havoc __utac_acc__Specification5_spec__3_#t~ret18, __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 985#L124 __utac_acc__Specification5_spec__3_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret18;havoc __utac_acc__Specification5_spec__3_#t~ret18; 837#L167 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 822#L819-1 __utac_acc__Specification5_spec__3_#t~ret19 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret19;havoc __utac_acc__Specification5_spec__3_#t~ret19; 823#L171 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 836#L167-1 [2021-08-27 16:23:25,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:23:25,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-08-27 16:23:25,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:23:25,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242786096] [2021-08-27 16:23:25,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:23:25,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:23:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:25,191 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:23:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:25,214 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:23:25,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:23:25,214 INFO L82 PathProgramCache]: Analyzing trace with hash -594781890, now seen corresponding path program 1 times [2021-08-27 16:23:25,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:23:25,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742917782] [2021-08-27 16:23:25,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:23:25,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:23:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:25,218 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:23:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:25,221 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:23:25,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:23:25,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1036026620, now seen corresponding path program 1 times [2021-08-27 16:23:25,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:23:25,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614671682] [2021-08-27 16:23:25,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:23:25,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:23:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:25,239 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:23:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:23:25,261 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:24:09,352 WARN L207 SmtUtils]: Spent 43.94 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-27 16:24:55,164 WARN L207 SmtUtils]: Spent 22.31 s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-27 16:24:55,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:24:55 BoogieIcfgContainer [2021-08-27 16:24:55,286 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:24:55,286 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:24:55,286 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:24:55,287 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:24:55,287 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:23:24" (3/4) ... [2021-08-27 16:24:55,289 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:24:55,344 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:24:55,347 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:24:55,349 INFO L168 Benchmark]: Toolchain (without parser) took 92625.97 ms. Allocated memory was 50.3 MB in the beginning and 134.2 MB in the end (delta: 83.9 MB). Free memory was 26.9 MB in the beginning and 50.6 MB in the end (delta: -23.7 MB). Peak memory consumption was 59.4 MB. Max. memory is 16.1 GB. [2021-08-27 16:24:55,350 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 50.3 MB. Free memory was 33.0 MB in the beginning and 33.0 MB in the end (delta: 37.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:24:55,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.84 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.7 MB in the beginning and 36.5 MB in the end (delta: -9.8 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2021-08-27 16:24:55,353 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.12 ms. Allocated memory is still 60.8 MB. Free memory was 36.3 MB in the beginning and 33.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:24:55,353 INFO L168 Benchmark]: Boogie Preprocessor took 42.78 ms. Allocated memory is still 60.8 MB. Free memory was 33.2 MB in the beginning and 31.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:24:55,353 INFO L168 Benchmark]: RCFGBuilder took 817.73 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 31.1 MB in the beginning and 41.0 MB in the end (delta: -9.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2021-08-27 16:24:55,355 INFO L168 Benchmark]: BuchiAutomizer took 91263.49 ms. Allocated memory was 75.5 MB in the beginning and 134.2 MB in the end (delta: 58.7 MB). Free memory was 41.0 MB in the beginning and 52.7 MB in the end (delta: -11.7 MB). Peak memory consumption was 76.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:24:55,356 INFO L168 Benchmark]: Witness Printer took 61.31 ms. Allocated memory is still 134.2 MB. Free memory was 52.7 MB in the beginning and 50.6 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:24:55,357 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 50.3 MB. Free memory was 33.0 MB in the beginning and 33.0 MB in the end (delta: 37.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 371.84 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.7 MB in the beginning and 36.5 MB in the end (delta: -9.8 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.12 ms. Allocated memory is still 60.8 MB. Free memory was 36.3 MB in the beginning and 33.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.78 ms. Allocated memory is still 60.8 MB. Free memory was 33.2 MB in the beginning and 31.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 817.73 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 31.1 MB in the beginning and 41.0 MB in the end (delta: -9.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 91263.49 ms. Allocated memory was 75.5 MB in the beginning and 134.2 MB in the end (delta: 58.7 MB). Free memory was 41.0 MB in the beginning and 52.7 MB in the end (delta: -11.7 MB). Peak memory consumption was 76.7 MB. Max. memory is 16.1 GB. * Witness Printer took 61.31 ms. Allocated memory is still 134.2 MB. Free memory was 52.7 MB in the beginning and 50.6 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * 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 5 locations. The remainder module has 279 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 91.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 90.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 33.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 113 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 279 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 252 SDtfs, 434 SDslu, 420 SDs, 0 SdLazy, 90 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 79.8ms Time 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: 912]: 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 {NULL=0, NULL=26049, NULL=0, NULL=1, NULL=0, retValue_acc=0, NULL=26043, NULL=0, NULL=0, NULL=0, NULL=26042, NULL=0, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3aa439f5=0, NULL=1685, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bdf8516=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59ab371d=0, NULL=0, NULL=0, NULL=1681, NULL=0, tmp=0, tmp___1=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=26041, retValue_acc=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=26040, NULL=26048, NULL=1680, \result=0, NULL=26045, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66562fbf=66, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@747e21bd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27b7c4ac=0, NULL=0, systemActive=1, waterLevel=1, NULL=26057, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@493d93eb=0, NULL=0, NULL=0, NULL=0, NULL=26055, NULL=0, NULL=26054, NULL=0, NULL=0, NULL=0, NULL=26047, tmp___0=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=26052, \result=0, NULL=26059, tmp=1, NULL=0, NULL=0, NULL=26053, NULL=26058, NULL=26051, retValue_acc=1, NULL=0, NULL=26050, NULL=0, NULL=1683, tmp___2=66, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, NULL=1684, NULL=26060, head=0, tmp=0, NULL=0, NULL=1682, NULL=26044, NULL=26046, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ffe25e5=0, NULL=0, NULL=1686, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@daa6c97=0, NULL=26056} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L140] int switchedOnBeforeTS ; [L189] int cleanupTimeShifts = 4; [L461] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L706] int pumpRunning = 0; [L707] int systemActive = 1; [L269] int retValue_acc ; [L270] int tmp ; [L684] int retValue_acc ; [L687] retValue_acc = 1 [L688] return (retValue_acc); [L276] tmp = valid_product() [L278] COND TRUE \read(tmp) [L145] switchedOnBeforeTS = 0 [L903] int splverifierCounter ; [L904] int tmp ; [L905] int tmp___0 ; [L906] int tmp___1 ; [L907] int tmp___2 ; [L910] splverifierCounter = 0 Loop: [L912] COND TRUE 1 [L914] COND TRUE splverifierCounter < 4 [L920] tmp = __VERIFIER_nondet_int() [L922] COND FALSE !(\read(tmp)) [L930] tmp___0 = __VERIFIER_nondet_int() [L932] COND FALSE !(\read(tmp___0)) [L940] tmp___2 = __VERIFIER_nondet_int() [L942] COND TRUE \read(tmp___2) [L897] systemActive = 1 [L815] int retValue_acc ; [L818] retValue_acc = pumpRunning [L819] return (retValue_acc); [L154] switchedOnBeforeTS = isPumpRunning() [L716] COND FALSE !(\read(pumpRunning)) [L723] COND TRUE \read(systemActive) [L745] int tmp ; [L748] COND FALSE !(\read(pumpRunning)) [L160] int tmp ; [L161] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L165] tmp = getWaterLevel() [L167] COND TRUE tmp != 2 [L815] int retValue_acc ; [L818] retValue_acc = pumpRunning [L819] return (retValue_acc); [L169] tmp___0 = isPumpRunning() [L171] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:24:55,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...