./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product51.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 311cf727219391e066955da60e9a83cfca77eaf7b53c342c6934d47c5123e76f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:33:11,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:33:11,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:33:11,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:33:11,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:33:11,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:33:11,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:33:11,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:33:11,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:33:11,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:33:11,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:33:11,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:33:11,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:33:11,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:33:11,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:33:11,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:33:11,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:33:11,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:33:11,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:33:11,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:33:11,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:33:11,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:33:11,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:33:11,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:33:11,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:33:11,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:33:11,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:33:11,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:33:11,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:33:11,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:33:11,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:33:11,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:33:11,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:33:11,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:33:11,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:33:11,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:33:11,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:33:11,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:33:11,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:33:11,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:33:11,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:33:11,913 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-21 22:33:11,939 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:33:11,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:33:11,941 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:33:11,941 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:33:11,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:33:11,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:33:11,942 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:33:11,942 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:33:11,943 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:33:11,943 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:33:11,943 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:33:11,944 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:33:11,944 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:33:11,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:33:11,944 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 22:33:11,944 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:33:11,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:33:11,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 22:33:11,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:33:11,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:33:11,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:33:11,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:33:11,945 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 22:33:11,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:33:11,946 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:33:11,946 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:33:11,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:33:11,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:33:11,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:33:11,947 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:33:11,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:33:11,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:33:11,948 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:33:11,948 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 311cf727219391e066955da60e9a83cfca77eaf7b53c342c6934d47c5123e76f [2021-12-21 22:33:12,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:33:12,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:33:12,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:33:12,143 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:33:12,143 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:33:12,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c [2021-12-21 22:33:12,203 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/435cc4490/33e3085c149a4a46af28d32a1eb0b4d2/FLAGf787b5d9b [2021-12-21 22:33:12,576 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:33:12,576 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c [2021-12-21 22:33:12,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/435cc4490/33e3085c149a4a46af28d32a1eb0b4d2/FLAGf787b5d9b [2021-12-21 22:33:12,989 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/435cc4490/33e3085c149a4a46af28d32a1eb0b4d2 [2021-12-21 22:33:12,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:33:12,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:33:12,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:33:12,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:33:12,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:33:12,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:33:12" (1/1) ... [2021-12-21 22:33:12,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@660079fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:12, skipping insertion in model container [2021-12-21 22:33:12,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:33:12" (1/1) ... [2021-12-21 22:33:13,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:33:13,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:33:13,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c[15256,15269] [2021-12-21 22:33:13,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:33:13,242 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:33:13,296 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c[15256,15269] [2021-12-21 22:33:13,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:33:13,321 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:33:13,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:13 WrapperNode [2021-12-21 22:33:13,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:33:13,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:33:13,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:33:13,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:33:13,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:13" (1/1) ... [2021-12-21 22:33:13,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:13" (1/1) ... [2021-12-21 22:33:13,361 INFO L137 Inliner]: procedures = 56, calls = 156, calls flagged for inlining = 53, calls inlined = 79, statements flattened = 606 [2021-12-21 22:33:13,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:33:13,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:33:13,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:33:13,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:33:13,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:13" (1/1) ... [2021-12-21 22:33:13,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:13" (1/1) ... [2021-12-21 22:33:13,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:13" (1/1) ... [2021-12-21 22:33:13,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:13" (1/1) ... [2021-12-21 22:33:13,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:13" (1/1) ... [2021-12-21 22:33:13,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:13" (1/1) ... [2021-12-21 22:33:13,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:13" (1/1) ... [2021-12-21 22:33:13,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:33:13,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:33:13,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:33:13,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:33:13,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:13" (1/1) ... [2021-12-21 22:33:13,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:33:13,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:33:13,451 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:33:13,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-21 22:33:13,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 22:33:13,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 22:33:13,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:33:13,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:33:13,550 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:33:13,552 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:33:13,886 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:33:13,891 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:33:13,892 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 22:33:13,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:33:13 BoogieIcfgContainer [2021-12-21 22:33:13,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:33:13,894 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:33:13,894 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:33:13,898 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:33:13,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:33:13,899 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:33:12" (1/3) ... [2021-12-21 22:33:13,902 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16c9e1dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:33:13, skipping insertion in model container [2021-12-21 22:33:13,902 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:33:13,902 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:13" (2/3) ... [2021-12-21 22:33:13,903 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16c9e1dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:33:13, skipping insertion in model container [2021-12-21 22:33:13,903 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:33:13,903 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:33:13" (3/3) ... [2021-12-21 22:33:13,904 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product51.cil.c [2021-12-21 22:33:13,932 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:33:13,936 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:33:13,936 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:33:13,936 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:33:13,936 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:33:13,936 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:33:13,936 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:33:13,936 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:33:13,949 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 166 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 165 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:13,966 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2021-12-21 22:33:13,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:33:13,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:33:13,971 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:13,972 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:13,972 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:33:13,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 166 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 165 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:13,978 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2021-12-21 22:33:13,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:33:13,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:33:13,981 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:13,981 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:13,985 INFO L791 eck$LassoCheckResult]: Stem: 155#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 62#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~9#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 55#L744true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 41#L737true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 94#L752true main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 134#L865true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 72#L842true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 58#L65-2true [2021-12-21 22:33:13,985 INFO L793 eck$LassoCheckResult]: Loop: 58#L65-2true assume !false; 52#L66true assume test_~splverifierCounter~0#1 < 4; 154#L67true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 85#L75true assume !(0 != test_~tmp~0#1); 152#L75-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 54#L85true assume !(0 != test_~tmp___0~0#1); 8#L85-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 120#L95true assume 0 != test_~tmp___2~0#1; 112#L101-2true assume { :begin_inline_timeShift } true; 48#L139true assume !(0 != ~pumpRunning~0); 33#L139-2true assume !(0 != ~systemActive~0); 36#L146-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_#t~ret46#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 136#L923true __utac_acc__Specification1_spec__1_#t~ret45#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret45#1;havoc __utac_acc__Specification1_spec__1_#t~ret45#1; 118#L765true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1); 101#L765-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 164#L156true assume { :end_inline_timeShift } true; 58#L65-2true [2021-12-21 22:33:14,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:14,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-21 22:33:14,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:14,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986156057] [2021-12-21 22:33:14,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:14,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:14,136 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:14,190 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:14,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:14,192 INFO L85 PathProgramCache]: Analyzing trace with hash 376889956, now seen corresponding path program 1 times [2021-12-21 22:33:14,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:14,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010157824] [2021-12-21 22:33:14,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:14,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:14,215 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:14,222 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:14,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:14,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1732309032, now seen corresponding path program 1 times [2021-12-21 22:33:14,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:14,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995947440] [2021-12-21 22:33:14,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:14,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:33:14,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:33:14,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:33:14,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995947440] [2021-12-21 22:33:14,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995947440] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:33:14,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:33:14,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 22:33:14,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392543892] [2021-12-21 22:33:14,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:33:14,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:33:14,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 22:33:14,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-21 22:33:14,495 INFO L87 Difference]: Start difference. First operand has 166 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 165 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:14,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:33:14,586 INFO L93 Difference]: Finished difference Result 383 states and 503 transitions. [2021-12-21 22:33:14,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 22:33:14,590 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 383 states and 503 transitions. [2021-12-21 22:33:14,596 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 247 [2021-12-21 22:33:14,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 383 states to 353 states and 473 transitions. [2021-12-21 22:33:14,607 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 353 [2021-12-21 22:33:14,609 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 353 [2021-12-21 22:33:14,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 353 states and 473 transitions. [2021-12-21 22:33:14,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:33:14,615 INFO L681 BuchiCegarLoop]: Abstraction has 353 states and 473 transitions. [2021-12-21 22:33:14,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states and 473 transitions. [2021-12-21 22:33:14,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 205. [2021-12-21 22:33:14,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 205 states have (on average 1.3365853658536586) internal successors, (274), 204 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:14,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 274 transitions. [2021-12-21 22:33:14,651 INFO L704 BuchiCegarLoop]: Abstraction has 205 states and 274 transitions. [2021-12-21 22:33:14,651 INFO L587 BuchiCegarLoop]: Abstraction has 205 states and 274 transitions. [2021-12-21 22:33:14,651 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:33:14,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 274 transitions. [2021-12-21 22:33:14,657 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 144 [2021-12-21 22:33:14,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:33:14,657 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:33:14,658 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:14,658 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:14,658 INFO L791 eck$LassoCheckResult]: Stem: 719#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 659#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~9#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 650#L744 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 626#L737 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 627#L752 main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 688#L865 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 674#L842 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 656#L65-2 [2021-12-21 22:33:14,659 INFO L793 eck$LassoCheckResult]: Loop: 656#L65-2 assume !false; 644#L66 assume test_~splverifierCounter~0#1 < 4; 645#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 680#L75 assume !(0 != test_~tmp~0#1); 663#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 648#L85 assume !(0 != test_~tmp___0~0#1); 575#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 576#L95 assume 0 != test_~tmp___2~0#1; 703#L101-2 assume { :begin_inline_timeShift } true; 637#L139 assume !(0 != ~pumpRunning~0); 600#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 616#L197 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 690#L171-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 698#L163-3 assume { :end_inline_processEnvironment__wrappee__base } true; 582#L171-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 601#L197-1 assume { :end_inline_processEnvironment } true; 602#L146-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_#t~ret46#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 620#L923 __utac_acc__Specification1_spec__1_#t~ret45#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret45#1;havoc __utac_acc__Specification1_spec__1_#t~ret45#1; 706#L765 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1); 668#L765-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 696#L156 assume { :end_inline_timeShift } true; 656#L65-2 [2021-12-21 22:33:14,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:14,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-21 22:33:14,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:14,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659078699] [2021-12-21 22:33:14,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:14,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:14,675 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:14,689 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:14,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:14,690 INFO L85 PathProgramCache]: Analyzing trace with hash 202053518, now seen corresponding path program 1 times [2021-12-21 22:33:14,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:14,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869593080] [2021-12-21 22:33:14,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:14,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:33:14,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:33:14,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:33:14,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869593080] [2021-12-21 22:33:14,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869593080] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:33:14,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:33:14,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 22:33:14,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265995121] [2021-12-21 22:33:14,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:33:14,717 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:33:14,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:33:14,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 22:33:14,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 22:33:14,719 INFO L87 Difference]: Start difference. First operand 205 states and 274 transitions. cyclomatic complexity: 72 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:14,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:33:14,788 INFO L93 Difference]: Finished difference Result 255 states and 325 transitions. [2021-12-21 22:33:14,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 22:33:14,789 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 255 states and 325 transitions. [2021-12-21 22:33:14,791 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 183 [2021-12-21 22:33:14,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 255 states to 255 states and 325 transitions. [2021-12-21 22:33:14,796 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 255 [2021-12-21 22:33:14,796 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 255 [2021-12-21 22:33:14,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 255 states and 325 transitions. [2021-12-21 22:33:14,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:33:14,798 INFO L681 BuchiCegarLoop]: Abstraction has 255 states and 325 transitions. [2021-12-21 22:33:14,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states and 325 transitions. [2021-12-21 22:33:14,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2021-12-21 22:33:14,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 255 states have (on average 1.2745098039215685) internal successors, (325), 254 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:14,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 325 transitions. [2021-12-21 22:33:14,806 INFO L704 BuchiCegarLoop]: Abstraction has 255 states and 325 transitions. [2021-12-21 22:33:14,806 INFO L587 BuchiCegarLoop]: Abstraction has 255 states and 325 transitions. [2021-12-21 22:33:14,806 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 22:33:14,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 255 states and 325 transitions. [2021-12-21 22:33:14,808 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 183 [2021-12-21 22:33:14,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:33:14,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:33:14,809 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:14,809 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:14,810 INFO L791 eck$LassoCheckResult]: Stem: 1197#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1128#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~9#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 1119#L744 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1094#L737 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1095#L752 main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 1159#L865 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 1143#L842 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1144#L65-2 [2021-12-21 22:33:14,810 INFO L793 eck$LassoCheckResult]: Loop: 1144#L65-2 assume !false; 1111#L66 assume test_~splverifierCounter~0#1 < 4; 1112#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1257#L75 assume !(0 != test_~tmp~0#1); 1194#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1195#L85 assume !(0 != test_~tmp___0~0#1); 1253#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1252#L95 assume 0 != test_~tmp___2~0#1; 1250#L101-2 assume { :begin_inline_timeShift } true; 1105#L139 assume !(0 != ~pumpRunning~0); 1082#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1083#L197 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1161#L171-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 1164#L963-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 1165#L968-1 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 1186#L299-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1104#L299-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1092#L305-1 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 1093#L175-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1139#L163-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1140#L171-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1065#L197-1 assume { :end_inline_processEnvironment } true; 1066#L146-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_#t~ret46#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 1270#L923 __utac_acc__Specification1_spec__1_#t~ret45#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret45#1;havoc __utac_acc__Specification1_spec__1_#t~ret45#1; 1268#L765 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1); 1261#L765-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1260#L156 assume { :end_inline_timeShift } true; 1144#L65-2 [2021-12-21 22:33:14,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:14,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-21 22:33:14,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:14,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262138812] [2021-12-21 22:33:14,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:14,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:14,844 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:14,852 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:14,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:14,852 INFO L85 PathProgramCache]: Analyzing trace with hash 578488294, now seen corresponding path program 1 times [2021-12-21 22:33:14,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:14,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007824462] [2021-12-21 22:33:14,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:14,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:14,859 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:14,867 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:14,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:14,868 INFO L85 PathProgramCache]: Analyzing trace with hash 953776034, now seen corresponding path program 1 times [2021-12-21 22:33:14,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:14,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986583711] [2021-12-21 22:33:14,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:14,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:14,882 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:14,902 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:17,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:33:17 BoogieIcfgContainer [2021-12-21 22:33:17,249 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:33:17,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:33:17,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:33:17,250 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:33:17,250 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:33:13" (3/4) ... [2021-12-21 22:33:17,252 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-21 22:33:17,284 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 22:33:17,284 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:33:17,285 INFO L158 Benchmark]: Toolchain (without parser) took 4293.92ms. Allocated memory was 109.1MB in the beginning and 192.9MB in the end (delta: 83.9MB). Free memory was 79.9MB in the beginning and 157.3MB in the end (delta: -77.5MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2021-12-21 22:33:17,287 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory was 67.9MB in the beginning and 67.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:33:17,287 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.10ms. Allocated memory was 109.1MB in the beginning and 148.9MB in the end (delta: 39.8MB). Free memory was 79.6MB in the beginning and 115.5MB in the end (delta: -35.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 22:33:17,288 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.91ms. Allocated memory is still 148.9MB. Free memory was 115.5MB in the beginning and 112.3MB in the end (delta: 3.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-21 22:33:17,288 INFO L158 Benchmark]: Boogie Preprocessor took 53.47ms. Allocated memory is still 148.9MB. Free memory was 112.3MB in the beginning and 110.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:33:17,288 INFO L158 Benchmark]: RCFGBuilder took 477.48ms. Allocated memory is still 148.9MB. Free memory was 110.2MB in the beginning and 88.2MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-21 22:33:17,289 INFO L158 Benchmark]: BuchiAutomizer took 3355.21ms. Allocated memory was 148.9MB in the beginning and 192.9MB in the end (delta: 44.0MB). Free memory was 88.2MB in the beginning and 160.4MB in the end (delta: -72.2MB). Peak memory consumption was 73.0MB. Max. memory is 16.1GB. [2021-12-21 22:33:17,289 INFO L158 Benchmark]: Witness Printer took 35.03ms. Allocated memory is still 192.9MB. Free memory was 159.4MB in the beginning and 157.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:33:17,290 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory was 67.9MB in the beginning and 67.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.10ms. Allocated memory was 109.1MB in the beginning and 148.9MB in the end (delta: 39.8MB). Free memory was 79.6MB in the beginning and 115.5MB in the end (delta: -35.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.91ms. Allocated memory is still 148.9MB. Free memory was 115.5MB in the beginning and 112.3MB in the end (delta: 3.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.47ms. Allocated memory is still 148.9MB. Free memory was 112.3MB in the beginning and 110.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 477.48ms. Allocated memory is still 148.9MB. Free memory was 110.2MB in the beginning and 88.2MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 3355.21ms. Allocated memory was 148.9MB in the beginning and 192.9MB in the end (delta: 44.0MB). Free memory was 88.2MB in the beginning and 160.4MB in the end (delta: -72.2MB). Peak memory consumption was 73.0MB. Max. memory is 16.1GB. * Witness Printer took 35.03ms. Allocated memory is still 192.9MB. Free memory was 159.4MB in the beginning and 157.3MB in the end (delta: 2.1MB). 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 255 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 148 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 255 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1147 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1147 mSDsluCounter, 1366 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 939 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 427 mSDtfsCounter, 69 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: 65]: 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, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@204c242b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bf6223a=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@465f4803=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@682d0f0e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9b632e5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25469839=29, methaneLevelCritical=0, retValue_acc=1, \result=0, retValue_acc=0, retValue_acc=1, \result=1, \result=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b916ac=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7346ee39=0, tmp___2=29, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@576349ef=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f96a23c=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, \result=0, tmp=0, retValue_acc=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 65]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L513] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L783] int cleanupTimeShifts = 4; [L880] int waterLevel = 1; [L881] int methaneLevelCritical = 0; [L856] int retValue_acc ; [L857] int tmp ; [L861] FCALL select_helpers() [L862] FCALL select_features() [L863] CALL, EXPR valid_product() [L748] int retValue_acc ; [L751] retValue_acc = 1 [L752] return (retValue_acc); [L863] RET, EXPR valid_product() [L863] tmp = valid_product() [L865] COND TRUE \read(tmp) [L867] FCALL setup() [L868] CALL runTest() [L850] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L110] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L212] CALL processEnvironment__wrappee__highWaterSensor() [L168] int tmp ; [L171] COND TRUE ! pumpRunning [L173] CALL, EXPR isHighWaterLevel() [L291] int retValue_acc ; [L292] int tmp ; [L293] int tmp___0 ; [L297] CALL, EXPR isHighWaterSensorDry() [L960] int retValue_acc ; [L963] COND TRUE waterLevel < 2 [L964] retValue_acc = 1 [L965] return (retValue_acc); [L297] RET, EXPR isHighWaterSensorDry() [L297] tmp = isHighWaterSensorDry() [L299] COND TRUE \read(tmp) [L300] tmp___0 = 0 [L304] retValue_acc = tmp___0 [L305] return (retValue_acc); [L173] RET, EXPR isHighWaterLevel() [L173] tmp = isHighWaterLevel() [L175] COND FALSE !(\read(tmp)) [L181] FCALL processEnvironment__wrappee__base() [L212] RET processEnvironment__wrappee__highWaterSensor() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification1_spec__1() [L758] int tmp ; [L759] int tmp___0 ; [L763] CALL, EXPR isMethaneLevelCritical() [L919] int retValue_acc ; [L922] retValue_acc = methaneLevelCritical [L923] return (retValue_acc); [L763] RET, EXPR isMethaneLevelCritical() [L763] tmp = isMethaneLevelCritical() [L765] COND FALSE !(\read(tmp)) [L154] RET __utac_acc__Specification1_spec__1() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-21 22:33:17,324 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)