./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product55.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 685bdac90b32b89d64927338575dc6f79737e9f84bb9272d4bfb0c942aa4ae35 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:38:05,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:38:05,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:38:05,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:38:05,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:38:05,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:38:05,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:38:05,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:38:05,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:38:05,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:38:05,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:38:05,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:38:05,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:38:05,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:38:05,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:38:05,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:38:05,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:38:05,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:38:05,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:38:05,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:38:05,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:38:05,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:38:05,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:38:05,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:38:05,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:38:05,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:38:05,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:38:05,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:38:05,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:38:05,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:38:05,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:38:05,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:38:05,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:38:05,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:38:05,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:38:05,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:38:05,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:38:05,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:38:05,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:38:05,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:38:05,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:38:05,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:38:05,488 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:38:05,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:38:05,488 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:38:05,489 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:38:05,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:38:05,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:38:05,490 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:38:05,490 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:38:05,490 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:38:05,490 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:38:05,491 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:38:05,491 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:38:05,491 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:38:05,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:38:05,491 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:38:05,492 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:38:05,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:38:05,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:38:05,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:38:05,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:38:05,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:38:05,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:38:05,493 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:38:05,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:38:05,494 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:38:05,494 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:38:05,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:38:05,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:38:05,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:38:05,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:38:05,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:38:05,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:38:05,497 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:38:05,497 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 685bdac90b32b89d64927338575dc6f79737e9f84bb9272d4bfb0c942aa4ae35 [2021-12-14 23:38:05,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:38:05,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:38:05,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:38:05,743 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:38:05,744 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:38:05,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c [2021-12-14 23:38:05,791 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c80c1a9b6/074f18dd809449a7b34aee3a0588bbf4/FLAG3634b5535 [2021-12-14 23:38:06,216 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:38:06,217 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c [2021-12-14 23:38:06,225 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c80c1a9b6/074f18dd809449a7b34aee3a0588bbf4/FLAG3634b5535 [2021-12-14 23:38:06,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c80c1a9b6/074f18dd809449a7b34aee3a0588bbf4 [2021-12-14 23:38:06,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:38:06,240 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:38:06,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:38:06,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:38:06,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:38:06,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:38:06" (1/1) ... [2021-12-14 23:38:06,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65f90c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:06, skipping insertion in model container [2021-12-14 23:38:06,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:38:06" (1/1) ... [2021-12-14 23:38:06,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:38:06,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:38:06,544 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_product55.cil.c[19412,19425] [2021-12-14 23:38:06,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:38:06,551 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:38:06,611 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_product55.cil.c[19412,19425] [2021-12-14 23:38:06,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:38:06,623 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:38:06,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:06 WrapperNode [2021-12-14 23:38:06,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:38:06,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:38:06,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:38:06,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:38:06,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:06" (1/1) ... [2021-12-14 23:38:06,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:06" (1/1) ... [2021-12-14 23:38:06,697 INFO L137 Inliner]: procedures = 58, calls = 161, calls flagged for inlining = 58, calls inlined = 140, statements flattened = 1024 [2021-12-14 23:38:06,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:38:06,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:38:06,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:38:06,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:38:06,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:06" (1/1) ... [2021-12-14 23:38:06,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:06" (1/1) ... [2021-12-14 23:38:06,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:06" (1/1) ... [2021-12-14 23:38:06,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:06" (1/1) ... [2021-12-14 23:38:06,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:06" (1/1) ... [2021-12-14 23:38:06,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:06" (1/1) ... [2021-12-14 23:38:06,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:06" (1/1) ... [2021-12-14 23:38:06,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:38:06,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:38:06,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:38:06,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:38:06,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:06" (1/1) ... [2021-12-14 23:38:06,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:38:06,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:38:06,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-14 23:38:06,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-14 23:38:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:38:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:38:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:38:06,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:38:06,886 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:38:06,892 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:38:07,431 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:38:07,443 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:38:07,444 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 23:38:07,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:38:07 BoogieIcfgContainer [2021-12-14 23:38:07,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:38:07,449 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:38:07,449 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:38:07,452 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:38:07,452 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:38:07,453 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:38:06" (1/3) ... [2021-12-14 23:38:07,453 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34098826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:38:07, skipping insertion in model container [2021-12-14 23:38:07,453 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:38:07,454 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:06" (2/3) ... [2021-12-14 23:38:07,454 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34098826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:38:07, skipping insertion in model container [2021-12-14 23:38:07,454 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:38:07,454 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:38:07" (3/3) ... [2021-12-14 23:38:07,455 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product55.cil.c [2021-12-14 23:38:07,487 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:38:07,487 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:38:07,488 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:38:07,488 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:38:07,488 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:38:07,488 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:38:07,488 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:38:07,488 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:38:07,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 278 states, 277 states have (on average 1.3754512635379061) internal successors, (381), 277 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:07,556 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2021-12-14 23:38:07,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:07,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:07,562 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:07,563 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:07,563 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:38:07,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 278 states, 277 states have (on average 1.3754512635379061) internal successors, (381), 277 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:07,571 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2021-12-14 23:38:07,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:07,573 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:07,574 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:07,574 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:07,577 INFO L791 eck$LassoCheckResult]: Stem: 256#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; 194#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 206#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 261#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 21#L83true main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 36#L1001true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 242#L977true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 67#L885true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#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; 143#L212-2true [2021-12-14 23:38:07,578 INFO L793 eck$LassoCheckResult]: Loop: 143#L212-2true assume !false; 138#L213true assume test_~splverifierCounter~0#1 < 4; 263#L214true test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 96#L222true assume !(0 != test_~tmp~0#1); 14#L222-2true test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 148#L232true assume !(0 != test_~tmp___0~0#1); 94#L232-2true test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 275#L242true assume 0 != test_~tmp___2~0#1; 188#L248-2true assume { :begin_inline_timeShift } true; 167#L281true assume !(0 != ~pumpRunning~0); 217#L281-2true assume !(0 != ~systemActive~0); 209#L288-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#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; 162#L139-1true __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; 10#L896true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 219#L896-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 184#L298true assume { :end_inline_timeShift } true; 143#L212-2true [2021-12-14 23:38:07,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:07,594 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-14 23:38:07,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:07,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287889129] [2021-12-14 23:38:07,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:07,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:07,711 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:07,744 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:07,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:07,746 INFO L85 PathProgramCache]: Analyzing trace with hash -2025406390, now seen corresponding path program 1 times [2021-12-14 23:38:07,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:07,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153171147] [2021-12-14 23:38:07,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:07,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:07,752 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:07,758 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:07,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:07,759 INFO L85 PathProgramCache]: Analyzing trace with hash 2107273523, now seen corresponding path program 1 times [2021-12-14 23:38:07,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:07,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409282695] [2021-12-14 23:38:07,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:07,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:38:07,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:38:07,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:38:07,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409282695] [2021-12-14 23:38:07,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409282695] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:38:07,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:38:07,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 23:38:07,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703772298] [2021-12-14 23:38:07,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:38:07,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:38:08,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 23:38:08,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 23:38:08,012 INFO L87 Difference]: Start difference. First operand has 278 states, 277 states have (on average 1.3754512635379061) internal successors, (381), 277 states have internal predecessors, (381), 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) [2021-12-14 23:38:08,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:38:08,146 INFO L93 Difference]: Finished difference Result 609 states and 816 transitions. [2021-12-14 23:38:08,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 23:38:08,151 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 609 states and 816 transitions. [2021-12-14 23:38:08,161 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 397 [2021-12-14 23:38:08,171 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 609 states to 579 states and 786 transitions. [2021-12-14 23:38:08,172 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 579 [2021-12-14 23:38:08,173 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 579 [2021-12-14 23:38:08,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 579 states and 786 transitions. [2021-12-14 23:38:08,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:38:08,178 INFO L681 BuchiCegarLoop]: Abstraction has 579 states and 786 transitions. [2021-12-14 23:38:08,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states and 786 transitions. [2021-12-14 23:38:08,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 320. [2021-12-14 23:38:08,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 320 states have (on average 1.35625) internal successors, (434), 319 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:08,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 434 transitions. [2021-12-14 23:38:08,231 INFO L704 BuchiCegarLoop]: Abstraction has 320 states and 434 transitions. [2021-12-14 23:38:08,231 INFO L587 BuchiCegarLoop]: Abstraction has 320 states and 434 transitions. [2021-12-14 23:38:08,231 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:38:08,231 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 320 states and 434 transitions. [2021-12-14 23:38:08,233 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 220 [2021-12-14 23:38:08,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:08,233 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:08,235 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:08,235 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:08,235 INFO L791 eck$LassoCheckResult]: Stem: 1170#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; 1150#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1151#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1158#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 937#L83 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 938#L1001 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 969#L977 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1018#L885 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#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; 1019#L212-2 [2021-12-14 23:38:08,236 INFO L793 eck$LassoCheckResult]: Loop: 1019#L212-2 assume !false; 1103#L213 assume test_~splverifierCounter~0#1 < 4; 1104#L214 test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 1052#L222 assume !(0 != test_~tmp~0#1); 927#L222-2 test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 928#L232 assume !(0 != test_~tmp___0~0#1); 1048#L232-2 test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 1049#L242 assume 0 != test_~tmp___2~0#1; 1115#L248-2 assume { :begin_inline_timeShift } true; 1134#L281 assume !(0 != ~pumpRunning~0); 996#L281-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1013#L365 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret17#1, isMethaneAlarm_~retValue_acc~6#1;havoc isMethaneAlarm_~retValue_acc~6#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; 965#L139 isMethaneAlarm_#t~ret17#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~6#1 := isMethaneAlarm_#t~ret17#1;havoc isMethaneAlarm_#t~ret17#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~6#1; 966#L409 processEnvironment_#t~ret16#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret16#1;havoc processEnvironment_#t~ret16#1; 1100#L369 assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1097#L399-1 assume { :end_inline_deactivatePump } true; 914#L365-1 assume { :end_inline_processEnvironment } true; 915#L288-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#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; 1129#L139-1 __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; 917#L896 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 919#L896-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1146#L298 assume { :end_inline_timeShift } true; 1019#L212-2 [2021-12-14 23:38:08,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:08,237 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-14 23:38:08,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:08,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462062120] [2021-12-14 23:38:08,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:08,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:08,268 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:08,290 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:08,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:08,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1274714957, now seen corresponding path program 1 times [2021-12-14 23:38:08,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:08,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128826995] [2021-12-14 23:38:08,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:08,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:38:08,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:38:08,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:38:08,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128826995] [2021-12-14 23:38:08,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128826995] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:38:08,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:38:08,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 23:38:08,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669165634] [2021-12-14 23:38:08,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:38:08,313 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-14 23:38:08,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:38:08,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 23:38:08,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 23:38:08,314 INFO L87 Difference]: Start difference. First operand 320 states and 434 transitions. cyclomatic complexity: 117 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:08,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:38:08,412 INFO L93 Difference]: Finished difference Result 328 states and 422 transitions. [2021-12-14 23:38:08,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 23:38:08,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 328 states and 422 transitions. [2021-12-14 23:38:08,415 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2021-12-14 23:38:08,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 328 states to 328 states and 422 transitions. [2021-12-14 23:38:08,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 328 [2021-12-14 23:38:08,417 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 328 [2021-12-14 23:38:08,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 328 states and 422 transitions. [2021-12-14 23:38:08,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:38:08,417 INFO L681 BuchiCegarLoop]: Abstraction has 328 states and 422 transitions. [2021-12-14 23:38:08,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states and 422 transitions. [2021-12-14 23:38:08,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2021-12-14 23:38:08,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 328 states have (on average 1.2865853658536586) internal successors, (422), 327 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:08,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 422 transitions. [2021-12-14 23:38:08,422 INFO L704 BuchiCegarLoop]: Abstraction has 328 states and 422 transitions. [2021-12-14 23:38:08,422 INFO L587 BuchiCegarLoop]: Abstraction has 328 states and 422 transitions. [2021-12-14 23:38:08,422 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-14 23:38:08,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 328 states and 422 transitions. [2021-12-14 23:38:08,423 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2021-12-14 23:38:08,423 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:08,423 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:08,424 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:08,424 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:08,424 INFO L791 eck$LassoCheckResult]: Stem: 1781#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; 1762#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1763#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1768#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1581#L83 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1582#L1001 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1609#L977 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1642#L885 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#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; 1643#L212-2 [2021-12-14 23:38:08,425 INFO L793 eck$LassoCheckResult]: Loop: 1643#L212-2 assume !false; 1869#L213 assume test_~splverifierCounter~0#1 < 4; 1784#L214 test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 1670#L222 assume !(0 != test_~tmp~0#1); 1571#L222-2 test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 1572#L232 assume !(0 != test_~tmp___0~0#1); 1665#L232-2 test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 1666#L242 assume 0 != test_~tmp___2~0#1; 1758#L248-2 assume { :begin_inline_timeShift } true; 1749#L281 assume !(0 != ~pumpRunning~0); 1750#L281-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1637#L365 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret15#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; 1638#L339-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1676#L313-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 1677#L179-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 1680#L184-3 isHighWaterLevel_#t~ret26#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret26#1;havoc isHighWaterLevel_#t~ret26#1; 1675#L467-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1613#L467-11 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 1614#L473-3 processEnvironment__wrappee__highWaterSensor_#t~ret14#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret14#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1; 1682#L317-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1686#L305-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1687#L313-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1717#L339-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1559#L365-1 assume { :end_inline_processEnvironment } true; 1560#L288-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#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; 1743#L139-1 __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; 1561#L896 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 1563#L896-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1756#L298 assume { :end_inline_timeShift } true; 1643#L212-2 [2021-12-14 23:38:08,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:08,425 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-14 23:38:08,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:08,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814720881] [2021-12-14 23:38:08,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:08,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:08,433 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:08,441 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:08,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:08,441 INFO L85 PathProgramCache]: Analyzing trace with hash 2142103229, now seen corresponding path program 1 times [2021-12-14 23:38:08,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:08,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895105876] [2021-12-14 23:38:08,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:08,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:08,446 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:08,451 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:08,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:08,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1246447500, now seen corresponding path program 1 times [2021-12-14 23:38:08,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:08,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914292118] [2021-12-14 23:38:08,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:08,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:08,467 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:08,481 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:11,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:38:11 BoogieIcfgContainer [2021-12-14 23:38:11,056 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:38:11,056 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:38:11,056 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:38:11,057 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:38:11,057 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:38:07" (3/4) ... [2021-12-14 23:38:11,059 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-14 23:38:11,101 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 23:38:11,101 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:38:11,102 INFO L158 Benchmark]: Toolchain (without parser) took 4861.44ms. Allocated memory was 96.5MB in the beginning and 161.5MB in the end (delta: 65.0MB). Free memory was 60.6MB in the beginning and 73.2MB in the end (delta: -12.6MB). Peak memory consumption was 52.1MB. Max. memory is 16.1GB. [2021-12-14 23:38:11,102 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 96.5MB. Free memory was 77.8MB in the beginning and 77.7MB in the end (delta: 89.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:38:11,103 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.73ms. Allocated memory is still 96.5MB. Free memory was 60.4MB in the beginning and 64.6MB in the end (delta: -4.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-14 23:38:11,103 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.68ms. Allocated memory is still 96.5MB. Free memory was 64.6MB in the beginning and 60.0MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-14 23:38:11,103 INFO L158 Benchmark]: Boogie Preprocessor took 32.89ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 56.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-14 23:38:11,104 INFO L158 Benchmark]: RCFGBuilder took 710.18ms. Allocated memory was 96.5MB in the beginning and 134.2MB in the end (delta: 37.7MB). Free memory was 56.9MB in the beginning and 99.4MB in the end (delta: -42.5MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2021-12-14 23:38:11,104 INFO L158 Benchmark]: BuchiAutomizer took 3606.79ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 99.4MB in the beginning and 76.4MB in the end (delta: 23.0MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. [2021-12-14 23:38:11,104 INFO L158 Benchmark]: Witness Printer took 45.15ms. Allocated memory is still 161.5MB. Free memory was 76.4MB in the beginning and 73.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-14 23:38:11,108 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 96.5MB. Free memory was 77.8MB in the beginning and 77.7MB in the end (delta: 89.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.73ms. Allocated memory is still 96.5MB. Free memory was 60.4MB in the beginning and 64.6MB in the end (delta: -4.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.68ms. Allocated memory is still 96.5MB. Free memory was 64.6MB in the beginning and 60.0MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.89ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 56.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 710.18ms. Allocated memory was 96.5MB in the beginning and 134.2MB in the end (delta: 37.7MB). Free memory was 56.9MB in the beginning and 99.4MB in the end (delta: -42.5MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3606.79ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 99.4MB in the beginning and 76.4MB in the end (delta: 23.0MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. * Witness Printer took 45.15ms. Allocated memory is still 161.5MB. Free memory was 76.4MB in the beginning and 73.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 328 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 259 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 328 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1620 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1620 mSDsluCounter, 2167 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1528 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 639 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 212]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27a3645d=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2128ae1e=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f7b6fbf=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a351365=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a5ca327=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55db4d6b=0, \result=0, retValue_acc=0, tmp=0, retValue_acc=1, retValue_acc=1, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1999c984=0, tmp=1, retValue_acc=0, tmp=1, tmp___2=29, methAndRunningLastTime=0, tmp=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31823f6d=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a004ffb=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp___0=0, retValue_acc=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5adf008=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@718cdf47=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 212]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L273] int pumpRunning = 0; [L274] int systemActive = 1; [L681] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L879] int methAndRunningLastTime ; [L918] int cleanupTimeShifts = 4; [L992] int retValue_acc ; [L993] int tmp ; [L997] FCALL select_helpers() [L998] FCALL select_features() [L999] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L999] RET, EXPR valid_product() [L999] tmp = valid_product() [L1001] COND TRUE \read(tmp) [L1003] FCALL setup() [L1004] CALL runTest() [L985] CALL __utac_acc__Specification2_spec__1() [L884] methAndRunningLastTime = 0 [L985] RET __utac_acc__Specification2_spec__1() [L986] CALL test() [L203] int splverifierCounter ; [L204] int tmp ; [L205] int tmp___0 ; [L206] int tmp___1 ; [L207] int tmp___2 ; [L210] splverifierCounter = 0 Loop: [L212] COND TRUE 1 [L214] COND TRUE splverifierCounter < 4 [L220] tmp = __VERIFIER_nondet_int() [L222] COND FALSE !(\read(tmp)) [L230] tmp___0 = __VERIFIER_nondet_int() [L232] COND FALSE !(\read(tmp___0)) [L240] tmp___2 = __VERIFIER_nondet_int() [L242] COND TRUE \read(tmp___2) [L257] CALL timeShift() [L281] COND FALSE !(\read(pumpRunning)) [L288] COND TRUE \read(systemActive) [L290] CALL processEnvironment() [L362] int tmp ; [L365] COND FALSE !(\read(pumpRunning)) [L380] CALL processEnvironment__wrappee__lowWaterSensor() [L336] int tmp ; [L339] COND FALSE !(\read(pumpRunning)) [L354] CALL processEnvironment__wrappee__highWaterSensor() [L310] int tmp ; [L313] COND TRUE ! pumpRunning [L315] CALL, EXPR isHighWaterLevel() [L459] int retValue_acc ; [L460] int tmp ; [L461] int tmp___0 ; [L465] CALL, EXPR isHighWaterSensorDry() [L176] int retValue_acc ; [L179] COND TRUE waterLevel < 2 [L180] retValue_acc = 1 [L181] return (retValue_acc); [L465] RET, EXPR isHighWaterSensorDry() [L465] tmp = isHighWaterSensorDry() [L467] COND TRUE \read(tmp) [L468] tmp___0 = 0 [L472] retValue_acc = tmp___0 [L473] return (retValue_acc); [L315] RET, EXPR isHighWaterLevel() [L315] tmp = isHighWaterLevel() [L317] COND FALSE !(\read(tmp)) [L323] FCALL processEnvironment__wrappee__base() [L354] RET processEnvironment__wrappee__highWaterSensor() [L380] RET processEnvironment__wrappee__lowWaterSensor() [L290] RET processEnvironment() [L296] CALL __utac_acc__Specification2_spec__2() [L889] int tmp ; [L890] int tmp___0 ; [L894] CALL, EXPR isMethaneLevelCritical() [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L894] RET, EXPR isMethaneLevelCritical() [L894] tmp = isMethaneLevelCritical() [L896] COND FALSE !(\read(tmp)) [L912] methAndRunningLastTime = 0 [L296] RET __utac_acc__Specification2_spec__2() [L257] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-14 23:38:11,165 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)