./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product12.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product12.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 94c250c59ca6a4ad79cab3b64e0d4d94a65a3d8e8b11f1d4a1323613891ef929 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:01,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:01,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:01,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:01,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:01,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:01,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:01,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:01,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:01,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:01,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:01,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:01,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:01,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:01,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:01,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:01,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:01,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:01,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:01,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:01,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:01,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:01,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:01,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:01,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:01,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:01,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:01,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:01,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:01,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:01,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:01,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:01,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:01,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:01,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:01,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:01,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:01,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:01,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:01,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:01,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:01,263 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:01,294 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:01,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:01,294 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:01,294 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:01,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:01,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:01,295 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:01,296 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:01,296 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:01,296 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:01,296 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:01,296 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:01,296 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:01,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:01,296 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:01,296 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:01,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:01,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:01,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:01,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:01,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:01,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:01,297 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:01,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:01,297 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:01,297 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:01,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:01,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:01,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:01,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:01,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:01,298 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:01,298 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94c250c59ca6a4ad79cab3b64e0d4d94a65a3d8e8b11f1d4a1323613891ef929 [2022-02-21 04:15:01,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:01,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:01,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:01,479 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:01,482 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:01,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product12.cil.c [2022-02-21 04:15:01,532 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d5ebe3db/75f9568a3d0944b7bf415f323b9f8db3/FLAGeb995ad3a [2022-02-21 04:15:01,934 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:01,934 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product12.cil.c [2022-02-21 04:15:01,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d5ebe3db/75f9568a3d0944b7bf415f323b9f8db3/FLAGeb995ad3a [2022-02-21 04:15:01,949 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d5ebe3db/75f9568a3d0944b7bf415f323b9f8db3 [2022-02-21 04:15:01,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:01,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:01,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:01,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:01,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:01,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:01" (1/1) ... [2022-02-21 04:15:01,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10584780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:01, skipping insertion in model container [2022-02-21 04:15:01,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:01" (1/1) ... [2022-02-21 04:15:01,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:02,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:02,161 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_product12.cil.c[4542,4555] [2022-02-21 04:15:02,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:02,237 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:02,262 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_product12.cil.c[4542,4555] [2022-02-21 04:15:02,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:02,308 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:02,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:02 WrapperNode [2022-02-21 04:15:02,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:02,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:02,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:02,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:02,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:02" (1/1) ... [2022-02-21 04:15:02,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:02" (1/1) ... [2022-02-21 04:15:02,359 INFO L137 Inliner]: procedures = 52, calls = 149, calls flagged for inlining = 46, calls inlined = 35, statements flattened = 288 [2022-02-21 04:15:02,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:02,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:02,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:02,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:02,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:02" (1/1) ... [2022-02-21 04:15:02,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:02" (1/1) ... [2022-02-21 04:15:02,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:02" (1/1) ... [2022-02-21 04:15:02,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:02" (1/1) ... [2022-02-21 04:15:02,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:02" (1/1) ... [2022-02-21 04:15:02,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:02" (1/1) ... [2022-02-21 04:15:02,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:02" (1/1) ... [2022-02-21 04:15:02,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:02,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:02,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:02,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:02,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:02" (1/1) ... [2022-02-21 04:15:02,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:02,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:02,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:15:02,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:15:02,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:02,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:02,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:02,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:02,504 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:02,505 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:02,688 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:02,693 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:02,693 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:02,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:02 BoogieIcfgContainer [2022-02-21 04:15:02,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:02,695 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:02,695 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:02,697 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:02,698 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:02,698 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:01" (1/3) ... [2022-02-21 04:15:02,699 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f550249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:02, skipping insertion in model container [2022-02-21 04:15:02,699 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:02,699 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:02" (2/3) ... [2022-02-21 04:15:02,699 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f550249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:02, skipping insertion in model container [2022-02-21 04:15:02,699 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:02,699 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:02" (3/3) ... [2022-02-21 04:15:02,700 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product12.cil.c [2022-02-21 04:15:02,732 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:02,733 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:02,733 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:02,733 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:02,733 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:02,733 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:02,733 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:02,733 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:02,745 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 80 states, 79 states have (on average 1.3670886075949367) internal successors, (108), 79 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:02,782 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2022-02-21 04:15:02,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:02,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:02,786 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:02,786 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:02,786 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:02,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 80 states, 79 states have (on average 1.3670886075949367) internal successors, (108), 79 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:02,804 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2022-02-21 04:15:02,805 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:02,805 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:02,805 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:02,805 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:02,809 INFO L791 eck$LassoCheckResult]: Stem: 61#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 45#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 26#L396true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 16#L389true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 54#L404true main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 39#L883true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 46#L860true 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; 47#L66-2true [2022-02-21 04:15:02,810 INFO L793 eck$LassoCheckResult]: Loop: 47#L66-2true assume !false; 59#L67true assume test_~splverifierCounter~0#1 < 4; 67#L68true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 78#L76true assume !(0 != test_~tmp~0#1); 64#L76-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 5#L86true assume !(0 != test_~tmp___0~0#1); 76#L86-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 49#L96true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 70#L277true assume { :end_inline_startSystem } true; 75#L104-2true assume { :begin_inline_timeShift } true; 66#L140true assume !(0 != ~pumpRunning~0); 62#L140-2true assume !(0 != ~systemActive~0); 71#L147-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_#t~ret25#1, __utac_acc__Specification1_spec__1_~tmp~2#1, __utac_acc__Specification1_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification1_spec__1_~tmp~2#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 38#L334true __utac_acc__Specification1_spec__1_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~2#1 := __utac_acc__Specification1_spec__1_#t~ret24#1;havoc __utac_acc__Specification1_spec__1_#t~ret24#1; 44#L417true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~2#1); 58#L417-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 10#L157true assume { :end_inline_timeShift } true; 47#L66-2true [2022-02-21 04:15:02,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:02,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:02,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:02,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513783175] [2022-02-21 04:15:02,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:02,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:02,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:02,941 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:03,003 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:03,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:03,005 INFO L85 PathProgramCache]: Analyzing trace with hash -516589951, now seen corresponding path program 1 times [2022-02-21 04:15:03,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:03,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422546494] [2022-02-21 04:15:03,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:03,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:03,080 INFO L290 TraceCheckUtils]: 0: Hoare triple {86#true} assume !false; {86#true} is VALID [2022-02-21 04:15:03,080 INFO L290 TraceCheckUtils]: 1: Hoare triple {86#true} assume test_~splverifierCounter~0#1 < 4; {86#true} is VALID [2022-02-21 04:15:03,080 INFO L290 TraceCheckUtils]: 2: Hoare triple {86#true} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {86#true} is VALID [2022-02-21 04:15:03,081 INFO L290 TraceCheckUtils]: 3: Hoare triple {86#true} assume !(0 != test_~tmp~0#1); {86#true} is VALID [2022-02-21 04:15:03,081 INFO L290 TraceCheckUtils]: 4: Hoare triple {86#true} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {86#true} is VALID [2022-02-21 04:15:03,081 INFO L290 TraceCheckUtils]: 5: Hoare triple {86#true} assume !(0 != test_~tmp___0~0#1); {86#true} is VALID [2022-02-21 04:15:03,081 INFO L290 TraceCheckUtils]: 6: Hoare triple {86#true} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {86#true} is VALID [2022-02-21 04:15:03,083 INFO L290 TraceCheckUtils]: 7: Hoare triple {86#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {88#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:03,083 INFO L290 TraceCheckUtils]: 8: Hoare triple {88#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {88#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:03,084 INFO L290 TraceCheckUtils]: 9: Hoare triple {88#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {88#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:03,087 INFO L290 TraceCheckUtils]: 10: Hoare triple {88#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {88#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:03,090 INFO L290 TraceCheckUtils]: 11: Hoare triple {88#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {87#false} is VALID [2022-02-21 04:15:03,090 INFO L290 TraceCheckUtils]: 12: Hoare triple {87#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_#t~ret25#1, __utac_acc__Specification1_spec__1_~tmp~2#1, __utac_acc__Specification1_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification1_spec__1_~tmp~2#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; {87#false} is VALID [2022-02-21 04:15:03,090 INFO L290 TraceCheckUtils]: 13: Hoare triple {87#false} __utac_acc__Specification1_spec__1_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~2#1 := __utac_acc__Specification1_spec__1_#t~ret24#1;havoc __utac_acc__Specification1_spec__1_#t~ret24#1; {87#false} is VALID [2022-02-21 04:15:03,091 INFO L290 TraceCheckUtils]: 14: Hoare triple {87#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~2#1); {87#false} is VALID [2022-02-21 04:15:03,091 INFO L290 TraceCheckUtils]: 15: Hoare triple {87#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {87#false} is VALID [2022-02-21 04:15:03,091 INFO L290 TraceCheckUtils]: 16: Hoare triple {87#false} assume { :end_inline_timeShift } true; {87#false} is VALID [2022-02-21 04:15:03,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:15:03,093 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:03,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422546494] [2022-02-21 04:15:03,093 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422546494] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:03,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:03,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:03,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282044641] [2022-02-21 04:15:03,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:03,099 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:03,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:03,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:03,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:03,126 INFO L87 Difference]: Start difference. First operand has 80 states, 79 states have (on average 1.3670886075949367) internal successors, (108), 79 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:03,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:03,316 INFO L93 Difference]: Finished difference Result 145 states and 183 transitions. [2022-02-21 04:15:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:03,317 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:03,328 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:03,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 145 states and 183 transitions. [2022-02-21 04:15:03,337 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2022-02-21 04:15:03,350 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 145 states to 125 states and 162 transitions. [2022-02-21 04:15:03,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2022-02-21 04:15:03,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2022-02-21 04:15:03,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 162 transitions. [2022-02-21 04:15:03,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:03,353 INFO L681 BuchiCegarLoop]: Abstraction has 125 states and 162 transitions. [2022-02-21 04:15:03,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 162 transitions. [2022-02-21 04:15:03,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 122. [2022-02-21 04:15:03,372 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:03,373 INFO L82 GeneralOperation]: Start isEquivalent. First operand 125 states and 162 transitions. Second operand has 122 states, 122 states have (on average 1.2950819672131149) internal successors, (158), 121 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:03,374 INFO L74 IsIncluded]: Start isIncluded. First operand 125 states and 162 transitions. Second operand has 122 states, 122 states have (on average 1.2950819672131149) internal successors, (158), 121 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:03,375 INFO L87 Difference]: Start difference. First operand 125 states and 162 transitions. Second operand has 122 states, 122 states have (on average 1.2950819672131149) internal successors, (158), 121 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:03,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:03,379 INFO L93 Difference]: Finished difference Result 125 states and 162 transitions. [2022-02-21 04:15:03,379 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 162 transitions. [2022-02-21 04:15:03,380 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:03,380 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:03,381 INFO L74 IsIncluded]: Start isIncluded. First operand has 122 states, 122 states have (on average 1.2950819672131149) internal successors, (158), 121 states have internal predecessors, (158), 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 125 states and 162 transitions. [2022-02-21 04:15:03,381 INFO L87 Difference]: Start difference. First operand has 122 states, 122 states have (on average 1.2950819672131149) internal successors, (158), 121 states have internal predecessors, (158), 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 125 states and 162 transitions. [2022-02-21 04:15:03,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:03,385 INFO L93 Difference]: Finished difference Result 125 states and 162 transitions. [2022-02-21 04:15:03,385 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 162 transitions. [2022-02-21 04:15:03,386 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:03,386 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:03,386 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:03,386 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:03,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 122 states have (on average 1.2950819672131149) internal successors, (158), 121 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:03,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 158 transitions. [2022-02-21 04:15:03,390 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 158 transitions. [2022-02-21 04:15:03,390 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 158 transitions. [2022-02-21 04:15:03,390 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:03,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 158 transitions. [2022-02-21 04:15:03,392 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 89 [2022-02-21 04:15:03,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:03,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:03,393 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:03,393 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:03,393 INFO L791 eck$LassoCheckResult]: Stem: 297#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 288#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 268#L396 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 253#L389 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 254#L404 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 282#L883 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 283#L860 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; 249#L66-2 [2022-02-21 04:15:03,393 INFO L793 eck$LassoCheckResult]: Loop: 249#L66-2 assume !false; 289#L67 assume test_~splverifierCounter~0#1 < 4; 296#L68 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 300#L76 assume !(0 != test_~tmp~0#1); 298#L76-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 236#L86 assume !(0 != test_~tmp___0~0#1); 238#L86-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 290#L96 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 291#L277 assume { :end_inline_startSystem } true; 263#L104-2 assume { :begin_inline_timeShift } true; 299#L140 assume !(0 != ~pumpRunning~0); 284#L140-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 260#L164 assume { :end_inline_processEnvironment } true; 261#L147-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_#t~ret25#1, __utac_acc__Specification1_spec__1_~tmp~2#1, __utac_acc__Specification1_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification1_spec__1_~tmp~2#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 280#L334 __utac_acc__Specification1_spec__1_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~2#1 := __utac_acc__Specification1_spec__1_#t~ret24#1;havoc __utac_acc__Specification1_spec__1_#t~ret24#1; 281#L417 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~2#1); 275#L417-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 248#L157 assume { :end_inline_timeShift } true; 249#L66-2 [2022-02-21 04:15:03,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:03,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:03,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:03,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041618992] [2022-02-21 04:15:03,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:03,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:03,412 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:03,448 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:03,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:03,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1793660369, now seen corresponding path program 1 times [2022-02-21 04:15:03,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:03,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020054325] [2022-02-21 04:15:03,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:03,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:03,454 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:03,458 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:03,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:03,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1318665579, now seen corresponding path program 1 times [2022-02-21 04:15:03,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:03,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933124702] [2022-02-21 04:15:03,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:03,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:03,474 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:03,487 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:06,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:06 BoogieIcfgContainer [2022-02-21 04:15:06,225 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:06,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:06,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:06,225 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:06,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:02" (3/4) ... [2022-02-21 04:15:06,227 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:06,274 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:06,274 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:06,276 INFO L158 Benchmark]: Toolchain (without parser) took 4323.20ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 95.1MB in the beginning and 123.2MB in the end (delta: -28.1MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:06,277 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory was 53.8MB in the beginning and 53.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:06,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.55ms. Allocated memory is still 125.8MB. Free memory was 94.8MB in the beginning and 89.3MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:15:06,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.74ms. Allocated memory is still 125.8MB. Free memory was 89.3MB in the beginning and 86.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:06,278 INFO L158 Benchmark]: Boogie Preprocessor took 20.53ms. Allocated memory is still 125.8MB. Free memory was 86.8MB in the beginning and 85.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:06,278 INFO L158 Benchmark]: RCFGBuilder took 311.63ms. Allocated memory is still 125.8MB. Free memory was 85.1MB in the beginning and 68.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-02-21 04:15:06,278 INFO L158 Benchmark]: BuchiAutomizer took 3529.71ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 67.9MB in the beginning and 125.3MB in the end (delta: -57.4MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2022-02-21 04:15:06,279 INFO L158 Benchmark]: Witness Printer took 49.06ms. Allocated memory is still 155.2MB. Free memory was 125.3MB in the beginning and 123.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:06,280 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory was 53.8MB in the beginning and 53.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.55ms. Allocated memory is still 125.8MB. Free memory was 94.8MB in the beginning and 89.3MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.74ms. Allocated memory is still 125.8MB. Free memory was 89.3MB in the beginning and 86.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.53ms. Allocated memory is still 125.8MB. Free memory was 86.8MB in the beginning and 85.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.63ms. Allocated memory is still 125.8MB. Free memory was 85.1MB in the beginning and 68.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3529.71ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 67.9MB in the beginning and 125.3MB in the end (delta: -57.4MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. * Witness Printer took 49.06ms. Allocated memory is still 155.2MB. Free memory was 125.3MB in the beginning and 123.2MB 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 122 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 122 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 176 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 95 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 66]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79882fa4=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1277f33f=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cf34d51=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1361844e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1822bce2=29, methaneLevelCritical=0, \result=0, retValue_acc=1, \result=1, retValue_acc=0, retValue_acc=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c83b05a=0, tmp=0, tmp=1, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62e98e71=0, \result=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 66]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L132] int pumpRunning = 0; [L133] int systemActive = 1; [L291] int waterLevel = 1; [L292] int methaneLevelCritical = 0; [L604] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L801] int cleanupTimeShifts = 4; [L874] int retValue_acc ; [L875] int tmp ; [L879] FCALL select_helpers() [L880] FCALL select_features() [L881] CALL, EXPR valid_product() [L400] int retValue_acc ; [L403] retValue_acc = 1 [L404] return (retValue_acc); [L881] RET, EXPR valid_product() [L881] tmp = valid_product() [L883] COND TRUE \read(tmp) [L885] FCALL setup() [L886] CALL runTest() [L868] CALL test() [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 Loop: [L66] COND TRUE 1 [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp)) [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___2) [L98] CALL startSystem() [L276] systemActive = 1 [L98] RET startSystem() [L113] CALL timeShift() [L140] COND FALSE !(\read(pumpRunning)) [L147] COND TRUE \read(systemActive) [L149] FCALL processEnvironment() [L155] CALL __utac_acc__Specification1_spec__1() [L410] int tmp ; [L411] int tmp___0 ; [L415] CALL, EXPR isMethaneLevelCritical() [L330] int retValue_acc ; [L333] retValue_acc = methaneLevelCritical [L334] return (retValue_acc); [L415] RET, EXPR isMethaneLevelCritical() [L415] tmp = isMethaneLevelCritical() [L417] COND FALSE !(\read(tmp)) [L155] RET __utac_acc__Specification1_spec__1() [L113] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:06,316 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)