./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product17.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product17.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 8418cf7d163b352a410eb8e80d08e8b0a7ca24d6b01fdd4260cca3324a0a1c4f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:00,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:00,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:00,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:00,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:00,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:00,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:00,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:00,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:00,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:00,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:00,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:00,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:00,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:00,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:00,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:00,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:00,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:00,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:00,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:00,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:00,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:00,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:00,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:00,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:00,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:00,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:00,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:00,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:00,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:00,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:00,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:00,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:00,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:00,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:00,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:00,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:00,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:00,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:00,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:00,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:00,426 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:00,454 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:00,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:00,454 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:00,455 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:00,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:00,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:00,456 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:00,456 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:00,456 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:00,457 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:00,457 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:00,457 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:00,458 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:00,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:00,458 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:00,458 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:00,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:00,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:00,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:00,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:00,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:00,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:00,459 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:00,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:00,460 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:00,460 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:00,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:00,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:00,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:00,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:00,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:00,462 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:00,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8418cf7d163b352a410eb8e80d08e8b0a7ca24d6b01fdd4260cca3324a0a1c4f [2022-02-21 04:16:00,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:00,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:00,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:00,698 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:00,699 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:00,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product17.cil.c [2022-02-21 04:16:00,750 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06917bf7e/e375ac84fdf140679193186519393c94/FLAG8f230ab03 [2022-02-21 04:16:01,152 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:01,153 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product17.cil.c [2022-02-21 04:16:01,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06917bf7e/e375ac84fdf140679193186519393c94/FLAG8f230ab03 [2022-02-21 04:16:01,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06917bf7e/e375ac84fdf140679193186519393c94 [2022-02-21 04:16:01,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:01,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:01,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:01,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:01,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:01,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:01" (1/1) ... [2022-02-21 04:16:01,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57ee4c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:01, skipping insertion in model container [2022-02-21 04:16:01,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:01" (1/1) ... [2022-02-21 04:16:01,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:01,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:01,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product17.cil.c[6402,6415] [2022-02-21 04:16:01,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:01,507 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:01,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product17.cil.c[6402,6415] [2022-02-21 04:16:01,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:01,578 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:01,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:01 WrapperNode [2022-02-21 04:16:01,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:01,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:01,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:01,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:01,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:01" (1/1) ... [2022-02-21 04:16:01,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:01" (1/1) ... [2022-02-21 04:16:01,632 INFO L137 Inliner]: procedures = 53, calls = 150, calls flagged for inlining = 47, calls inlined = 48, statements flattened = 393 [2022-02-21 04:16:01,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:01,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:01,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:01,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:01,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:01" (1/1) ... [2022-02-21 04:16:01,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:01" (1/1) ... [2022-02-21 04:16:01,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:01" (1/1) ... [2022-02-21 04:16:01,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:01" (1/1) ... [2022-02-21 04:16:01,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:01" (1/1) ... [2022-02-21 04:16:01,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:01" (1/1) ... [2022-02-21 04:16:01,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:01" (1/1) ... [2022-02-21 04:16:01,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:01,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:01,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:01,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:01,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:01" (1/1) ... [2022-02-21 04:16:01,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:01,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:01,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:16:01,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:16:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:01,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:01,818 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:01,819 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:02,105 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:02,114 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:02,114 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:02,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:02 BoogieIcfgContainer [2022-02-21 04:16:02,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:02,118 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:02,118 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:02,121 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:02,121 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:02,122 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:01" (1/3) ... [2022-02-21 04:16:02,122 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24e68142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:02, skipping insertion in model container [2022-02-21 04:16:02,123 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:02,123 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:01" (2/3) ... [2022-02-21 04:16:02,123 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24e68142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:02, skipping insertion in model container [2022-02-21 04:16:02,123 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:02,123 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:02" (3/3) ... [2022-02-21 04:16:02,125 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product17.cil.c [2022-02-21 04:16:02,163 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:02,163 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:02,163 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:02,163 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:02,164 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:02,164 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:02,164 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:02,164 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:02,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:02,233 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2022-02-21 04:16:02,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:02,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:02,238 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:02,238 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:02,239 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:02,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:02,249 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2022-02-21 04:16:02,249 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:02,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:02,250 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:02,250 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:02,257 INFO L791 eck$LassoCheckResult]: Stem: 97#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 30#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 69#L395true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 22#L388true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 42#L403true main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 98#L905true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 83#L881true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 56#L789true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#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; 14#L158-2true [2022-02-21 04:16:02,258 INFO L793 eck$LassoCheckResult]: Loop: 14#L158-2true assume !false; 59#L159true assume test_~splverifierCounter~0#1 < 4; 72#L160true test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 7#L168true assume !(0 != test_~tmp~0#1); 12#L168-2true test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 26#L178true assume !(0 != test_~tmp___0~0#1); 13#L178-2true test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 19#L188true assume 0 != test_~tmp___2~0#1; 103#L194-2true assume { :begin_inline_timeShift } true; 28#L225true assume !(0 != ~pumpRunning~0); 52#L225-2true assume !(0 != ~systemActive~0); 84#L232-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret48#1, __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_~tmp~6#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~6#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 46#L100true __utac_acc__Specification2_spec__2_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~6#1 := __utac_acc__Specification2_spec__2_#t~ret48#1;havoc __utac_acc__Specification2_spec__2_#t~ret48#1; 17#L800true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6#1);~methAndRunningLastTime~0 := 0; 96#L800-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 107#L242true assume { :end_inline_timeShift } true; 14#L158-2true [2022-02-21 04:16:02,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:02,262 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:16:02,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:02,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748054966] [2022-02-21 04:16:02,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:02,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:02,367 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:02,407 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:02,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:02,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1838320810, now seen corresponding path program 1 times [2022-02-21 04:16:02,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:02,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129125040] [2022-02-21 04:16:02,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:02,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:02,421 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:02,427 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:02,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:02,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1676033427, now seen corresponding path program 1 times [2022-02-21 04:16:02,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:02,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210428835] [2022-02-21 04:16:02,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:02,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:02,588 INFO L290 TraceCheckUtils]: 0: Hoare triple {114#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; {116#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:02,589 INFO L290 TraceCheckUtils]: 1: Hoare triple {116#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; {116#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:02,589 INFO L290 TraceCheckUtils]: 2: Hoare triple {116#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {116#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:02,590 INFO L290 TraceCheckUtils]: 3: Hoare triple {116#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; {117#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:02,590 INFO L290 TraceCheckUtils]: 4: Hoare triple {117#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret50#1;havoc main_#t~ret50#1; {118#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} is VALID [2022-02-21 04:16:02,591 INFO L290 TraceCheckUtils]: 5: Hoare triple {118#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; {119#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:02,592 INFO L290 TraceCheckUtils]: 6: Hoare triple {119#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; {119#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:02,592 INFO L290 TraceCheckUtils]: 7: Hoare triple {119#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#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; {119#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:02,593 INFO L290 TraceCheckUtils]: 8: Hoare triple {119#(not (= 0 ~systemActive~0))} assume !false; {119#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:02,593 INFO L290 TraceCheckUtils]: 9: Hoare triple {119#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {119#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:02,594 INFO L290 TraceCheckUtils]: 10: Hoare triple {119#(not (= 0 ~systemActive~0))} test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {119#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:02,595 INFO L290 TraceCheckUtils]: 11: Hoare triple {119#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0#1); {119#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:02,595 INFO L290 TraceCheckUtils]: 12: Hoare triple {119#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; {119#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:02,596 INFO L290 TraceCheckUtils]: 13: Hoare triple {119#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {119#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:02,596 INFO L290 TraceCheckUtils]: 14: Hoare triple {119#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; {119#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:02,597 INFO L290 TraceCheckUtils]: 15: Hoare triple {119#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {119#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:02,597 INFO L290 TraceCheckUtils]: 16: Hoare triple {119#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {119#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:02,598 INFO L290 TraceCheckUtils]: 17: Hoare triple {119#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {119#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:02,598 INFO L290 TraceCheckUtils]: 18: Hoare triple {119#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {115#false} is VALID [2022-02-21 04:16:02,599 INFO L290 TraceCheckUtils]: 19: Hoare triple {115#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret48#1, __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_~tmp~6#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~6#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {115#false} is VALID [2022-02-21 04:16:02,599 INFO L290 TraceCheckUtils]: 20: Hoare triple {115#false} __utac_acc__Specification2_spec__2_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~6#1 := __utac_acc__Specification2_spec__2_#t~ret48#1;havoc __utac_acc__Specification2_spec__2_#t~ret48#1; {115#false} is VALID [2022-02-21 04:16:02,600 INFO L290 TraceCheckUtils]: 21: Hoare triple {115#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6#1);~methAndRunningLastTime~0 := 0; {115#false} is VALID [2022-02-21 04:16:02,600 INFO L290 TraceCheckUtils]: 22: Hoare triple {115#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {115#false} is VALID [2022-02-21 04:16:02,601 INFO L290 TraceCheckUtils]: 23: Hoare triple {115#false} assume { :end_inline_timeShift } true; {115#false} is VALID [2022-02-21 04:16:02,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:02,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:02,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210428835] [2022-02-21 04:16:02,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210428835] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:02,604 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:02,604 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:02,605 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510483982] [2022-02-21 04:16:02,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:02,728 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:02,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:02,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:02,755 INFO L87 Difference]: Start difference. First operand has 106 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:03,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:03,053 INFO L93 Difference]: Finished difference Result 103 states and 131 transitions. [2022-02-21 04:16:03,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:16:03,055 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:03,077 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:03,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 131 transitions. [2022-02-21 04:16:03,086 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2022-02-21 04:16:03,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 93 states and 121 transitions. [2022-02-21 04:16:03,091 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2022-02-21 04:16:03,091 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 93 [2022-02-21 04:16:03,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 121 transitions. [2022-02-21 04:16:03,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:03,092 INFO L681 BuchiCegarLoop]: Abstraction has 93 states and 121 transitions. [2022-02-21 04:16:03,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 121 transitions. [2022-02-21 04:16:03,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-02-21 04:16:03,114 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:03,115 INFO L82 GeneralOperation]: Start isEquivalent. First operand 93 states and 121 transitions. Second operand has 93 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 92 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:03,116 INFO L74 IsIncluded]: Start isIncluded. First operand 93 states and 121 transitions. Second operand has 93 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 92 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:03,117 INFO L87 Difference]: Start difference. First operand 93 states and 121 transitions. Second operand has 93 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 92 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:03,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:03,120 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2022-02-21 04:16:03,120 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 121 transitions. [2022-02-21 04:16:03,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:03,121 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:03,121 INFO L74 IsIncluded]: Start isIncluded. First operand has 93 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 92 states have internal predecessors, (121), 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 93 states and 121 transitions. [2022-02-21 04:16:03,122 INFO L87 Difference]: Start difference. First operand has 93 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 92 states have internal predecessors, (121), 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 93 states and 121 transitions. [2022-02-21 04:16:03,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:03,124 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2022-02-21 04:16:03,124 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 121 transitions. [2022-02-21 04:16:03,125 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:03,125 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:03,125 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:03,125 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:03,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 92 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:03,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 121 transitions. [2022-02-21 04:16:03,129 INFO L704 BuchiCegarLoop]: Abstraction has 93 states and 121 transitions. [2022-02-21 04:16:03,129 INFO L587 BuchiCegarLoop]: Abstraction has 93 states and 121 transitions. [2022-02-21 04:16:03,129 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:03,129 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states and 121 transitions. [2022-02-21 04:16:03,130 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2022-02-21 04:16:03,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:03,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:03,131 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:03,131 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] [2022-02-21 04:16:03,132 INFO L791 eck$LassoCheckResult]: Stem: 314#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 300#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 274#L395 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 275#L388 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 282#L403 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 315#L905 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 294#L881 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 229#L789 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#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; 230#L158-2 [2022-02-21 04:16:03,132 INFO L793 eck$LassoCheckResult]: Loop: 230#L158-2 assume !false; 245#L159 assume test_~splverifierCounter~0#1 < 4; 246#L160 test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 237#L168 assume !(0 != test_~tmp~0#1); 239#L168-2 test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 260#L178 assume !(0 != test_~tmp___0~0#1); 236#L178-2 test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 261#L188 assume 0 != test_~tmp___2~0#1; 276#L194-2 assume { :begin_inline_timeShift } true; 299#L225 assume !(0 != ~pumpRunning~0); 278#L225-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 319#L257 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 227#L249-1 assume { :end_inline_processEnvironment__wrappee__base } true; 228#L257-1 assume { :end_inline_processEnvironment } true; 295#L232-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret48#1, __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_~tmp~6#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~6#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 296#L100 __utac_acc__Specification2_spec__2_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~6#1 := __utac_acc__Specification2_spec__2_#t~ret48#1;havoc __utac_acc__Specification2_spec__2_#t~ret48#1; 272#L800 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6#1);~methAndRunningLastTime~0 := 0; 258#L800-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 313#L242 assume { :end_inline_timeShift } true; 230#L158-2 [2022-02-21 04:16:03,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:03,133 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:16:03,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:03,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419008836] [2022-02-21 04:16:03,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:03,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:03,149 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:03,175 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:03,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:03,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1043904107, now seen corresponding path program 1 times [2022-02-21 04:16:03,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:03,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788470169] [2022-02-21 04:16:03,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:03,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:03,186 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:03,193 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:03,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:03,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1821314846, now seen corresponding path program 1 times [2022-02-21 04:16:03,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:03,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000175668] [2022-02-21 04:16:03,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:03,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:03,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:03,216 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:03,239 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:06,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:06 BoogieIcfgContainer [2022-02-21 04:16:06,111 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:06,112 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:06,112 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:06,112 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:06,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:02" (3/4) ... [2022-02-21 04:16:06,114 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:06,189 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:06,190 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:06,191 INFO L158 Benchmark]: Toolchain (without parser) took 5010.38ms. Allocated memory was 96.5MB in the beginning and 155.2MB in the end (delta: 58.7MB). Free memory was 68.9MB in the beginning and 122.8MB in the end (delta: -54.0MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-02-21 04:16:06,191 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:06,191 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.59ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 68.5MB in the beginning and 93.1MB in the end (delta: -24.6MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:06,192 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.23ms. Allocated memory is still 127.9MB. Free memory was 93.1MB in the beginning and 89.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:06,192 INFO L158 Benchmark]: Boogie Preprocessor took 46.70ms. Allocated memory is still 127.9MB. Free memory was 89.7MB in the beginning and 88.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:06,192 INFO L158 Benchmark]: RCFGBuilder took 437.02ms. Allocated memory is still 127.9MB. Free memory was 88.1MB in the beginning and 102.6MB in the end (delta: -14.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:06,193 INFO L158 Benchmark]: BuchiAutomizer took 3993.44ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 102.6MB in the beginning and 125.9MB in the end (delta: -23.4MB). Peak memory consumption was 90.9MB. Max. memory is 16.1GB. [2022-02-21 04:16:06,193 INFO L158 Benchmark]: Witness Printer took 77.99ms. Allocated memory is still 155.2MB. Free memory was 125.9MB in the beginning and 122.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:06,194 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 is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.59ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 68.5MB in the beginning and 93.1MB in the end (delta: -24.6MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.23ms. Allocated memory is still 127.9MB. Free memory was 93.1MB in the beginning and 89.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.70ms. Allocated memory is still 127.9MB. Free memory was 89.7MB in the beginning and 88.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 437.02ms. Allocated memory is still 127.9MB. Free memory was 88.1MB in the beginning and 102.6MB in the end (delta: -14.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 3993.44ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 102.6MB in the beginning and 125.9MB in the end (delta: -23.4MB). Peak memory consumption was 90.9MB. Max. memory is 16.1GB. * Witness Printer took 77.99ms. Allocated memory is still 155.2MB. Free memory was 125.9MB in the beginning and 122.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 6 locations. The remainder module has 93 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 93 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 383 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 383 mSDsluCounter, 130 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 126 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 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: 158]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@895e5c2=29, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@314bbbd6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f75754a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@92d182c=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c29f797=0, methaneLevelCritical=0, tmp=0, \result=0, retValue_acc=1, retValue_acc=0, retValue_acc=0, \result=1, tmp=1, tmp___2=29, methAndRunningLastTime=0, tmp=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dc3adc=0, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49c0d0e0=0, waterLevel=1, systemActive=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41a9d86b=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 158]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L217] int pumpRunning = 0; [L218] int systemActive = 1; [L586] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L783] int methAndRunningLastTime ; [L822] int cleanupTimeShifts = 4; [L896] int retValue_acc ; [L897] int tmp ; [L901] FCALL select_helpers() [L902] FCALL select_features() [L903] CALL, EXPR valid_product() [L399] int retValue_acc ; [L402] retValue_acc = 1 [L403] return (retValue_acc); [L903] RET, EXPR valid_product() [L903] tmp = valid_product() [L905] COND TRUE \read(tmp) [L907] FCALL setup() [L908] CALL runTest() [L889] CALL __utac_acc__Specification2_spec__1() [L788] methAndRunningLastTime = 0 [L889] RET __utac_acc__Specification2_spec__1() [L890] CALL test() [L149] int splverifierCounter ; [L150] int tmp ; [L151] int tmp___0 ; [L152] int tmp___1 ; [L153] int tmp___2 ; [L156] splverifierCounter = 0 Loop: [L158] COND TRUE 1 [L160] COND TRUE splverifierCounter < 4 [L166] tmp = __VERIFIER_nondet_int() [L168] COND FALSE !(\read(tmp)) [L176] tmp___0 = __VERIFIER_nondet_int() [L178] COND FALSE !(\read(tmp___0)) [L186] tmp___2 = __VERIFIER_nondet_int() [L188] COND TRUE \read(tmp___2) [L201] CALL timeShift() [L225] COND FALSE !(\read(pumpRunning)) [L232] COND TRUE \read(systemActive) [L234] CALL processEnvironment() [L254] int tmp ; [L257] COND FALSE !(\read(pumpRunning)) [L272] FCALL processEnvironment__wrappee__base() [L234] RET processEnvironment() [L240] CALL __utac_acc__Specification2_spec__2() [L793] int tmp ; [L794] int tmp___0 ; [L798] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L798] RET, EXPR isMethaneLevelCritical() [L798] tmp = isMethaneLevelCritical() [L800] COND FALSE !(\read(tmp)) [L816] methAndRunningLastTime = 0 [L240] RET __utac_acc__Specification2_spec__2() [L201] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:06,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)