./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 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_product47.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 2bb4b23c61a0ce6fb5d219efb233ba1e5b1970509ba14aea9115d570a0ea376d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:40:10,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:40:10,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:40:10,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:40:10,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:40:10,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:40:10,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:40:10,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:40:10,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:40:10,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:40:10,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:40:10,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:40:10,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:40:10,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:40:10,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:40:10,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:40:10,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:40:10,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:40:10,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:40:10,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:40:10,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:40:10,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:40:10,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:40:10,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:40:10,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:40:10,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:40:10,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:40:10,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:40:10,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:40:10,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:40:10,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:40:10,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:40:10,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:40:10,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:40:10,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:40:10,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:40:10,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:40:10,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:40:10,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:40:10,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:40:10,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:40:10,475 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:40:10,500 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:40:10,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:40:10,501 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:40:10,501 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:40:10,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:40:10,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:40:10,503 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:40:10,503 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:40:10,503 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:40:10,503 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:40:10,504 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:40:10,504 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:40:10,504 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:40:10,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:40:10,505 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:40:10,505 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:40:10,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:40:10,505 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:40:10,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:40:10,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:40:10,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:40:10,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:40:10,506 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:40:10,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:40:10,506 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:40:10,506 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:40:10,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:40:10,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:40:10,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:40:10,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:40:10,507 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:40:10,508 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:40:10,509 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bb4b23c61a0ce6fb5d219efb233ba1e5b1970509ba14aea9115d570a0ea376d [2021-12-28 09:40:10,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:40:10,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:40:10,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:40:10,770 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:40:10,773 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:40:10,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c [2021-12-28 09:40:10,815 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ca4a58b6/cd008c6623dd499d908af9596f82e803/FLAG37abb21ec [2021-12-28 09:40:11,204 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:40:11,206 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c [2021-12-28 09:40:11,219 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ca4a58b6/cd008c6623dd499d908af9596f82e803/FLAG37abb21ec [2021-12-28 09:40:11,574 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ca4a58b6/cd008c6623dd499d908af9596f82e803 [2021-12-28 09:40:11,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:40:11,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:40:11,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:11,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:40:11,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:40:11,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:11" (1/1) ... [2021-12-28 09:40:11,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c7e29e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:11, skipping insertion in model container [2021-12-28 09:40:11,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:11" (1/1) ... [2021-12-28 09:40:11,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:40:11,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:40:11,727 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_product47.cil.c[1605,1618] [2021-12-28 09:40:11,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:11,834 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:40:11,842 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_product47.cil.c[1605,1618] [2021-12-28 09:40:11,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:11,886 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:40:11,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:11 WrapperNode [2021-12-28 09:40:11,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:11,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:11,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:40:11,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:40:11,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:11" (1/1) ... [2021-12-28 09:40:11,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:11" (1/1) ... [2021-12-28 09:40:11,959 INFO L137 Inliner]: procedures = 56, calls = 158, calls flagged for inlining = 55, calls inlined = 98, statements flattened = 730 [2021-12-28 09:40:11,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:11,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:40:11,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:40:11,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:40:11,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:11" (1/1) ... [2021-12-28 09:40:11,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:11" (1/1) ... [2021-12-28 09:40:11,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:11" (1/1) ... [2021-12-28 09:40:11,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:11" (1/1) ... [2021-12-28 09:40:11,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:11" (1/1) ... [2021-12-28 09:40:11,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:11" (1/1) ... [2021-12-28 09:40:11,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:11" (1/1) ... [2021-12-28 09:40:11,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:40:11,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:40:11,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:40:11,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:40:11,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:11" (1/1) ... [2021-12-28 09:40:11,995 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:40:12,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:40:12,033 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) [2021-12-28 09:40:12,055 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 [2021-12-28 09:40:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:40:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:40:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:40:12,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:40:12,144 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:40:12,145 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:40:12,550 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:40:12,556 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:40:12,557 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:40:12,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:12 BoogieIcfgContainer [2021-12-28 09:40:12,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:40:12,559 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:40:12,559 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:40:12,561 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:40:12,562 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:12,562 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:40:11" (1/3) ... [2021-12-28 09:40:12,563 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a4712c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:12, skipping insertion in model container [2021-12-28 09:40:12,563 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:12,574 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:11" (2/3) ... [2021-12-28 09:40:12,575 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a4712c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:12, skipping insertion in model container [2021-12-28 09:40:12,575 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:12,575 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:12" (3/3) ... [2021-12-28 09:40:12,576 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product47.cil.c [2021-12-28 09:40:12,605 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:40:12,605 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:40:12,605 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:40:12,605 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:40:12,605 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:40:12,605 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:40:12,605 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:40:12,605 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:40:12,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 188 states, 187 states have (on average 1.3636363636363635) internal successors, (255), 187 states have internal predecessors, (255), 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) [2021-12-28 09:40:12,644 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2021-12-28 09:40:12,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:12,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:12,651 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:12,651 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:12,651 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:40:12,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 188 states, 187 states have (on average 1.3636363636363635) internal successors, (255), 187 states have internal predecessors, (255), 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) [2021-12-28 09:40:12,665 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2021-12-28 09:40:12,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:12,667 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:12,669 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:12,669 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:12,677 INFO L791 eck$LassoCheckResult]: Stem: 176#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 53#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 173#L84true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 99#L77true 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; 161#L92true main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 24#L592true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 63#L567true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 32#L471true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 30#L927-2true [2021-12-28 09:40:12,678 INFO L793 eck$LassoCheckResult]: Loop: 30#L927-2true assume !false; 85#L928true assume test_~splverifierCounter~0#1 < 4; 95#L929true test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 109#L937true assume !(0 != test_~tmp~9#1); 144#L937-2true test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 69#L947true assume !(0 != test_~tmp___0~2#1); 138#L947-2true test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 84#L957true assume 0 != test_~tmp___2~0#1; 18#L963-2true assume { :begin_inline_timeShift } true; 15#L714true assume !(0 != ~pumpRunning~0); 112#L714-2true assume !(0 != ~systemActive~0); 74#L721-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 104#L653-3true __utac_acc__Specification2_spec__2_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret28#1;havoc __utac_acc__Specification2_spec__2_#t~ret28#1; 82#L482true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 55#L482-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 134#L731true assume { :end_inline_timeShift } true; 30#L927-2true [2021-12-28 09:40:12,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:12,687 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-28 09:40:12,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:12,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892431444] [2021-12-28 09:40:12,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:12,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:12,809 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:12,864 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:12,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:12,866 INFO L85 PathProgramCache]: Analyzing trace with hash -747951606, now seen corresponding path program 1 times [2021-12-28 09:40:12,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:12,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173309147] [2021-12-28 09:40:12,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:12,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:12,890 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:12,897 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:12,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:12,900 INFO L85 PathProgramCache]: Analyzing trace with hash -910238989, now seen corresponding path program 1 times [2021-12-28 09:40:12,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:12,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578271130] [2021-12-28 09:40:12,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:12,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:13,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:13,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:13,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578271130] [2021-12-28 09:40:13,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578271130] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:13,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:13,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:40:13,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2707385] [2021-12-28 09:40:13,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:13,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:13,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 09:40:13,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 09:40:13,159 INFO L87 Difference]: Start difference. First operand has 188 states, 187 states have (on average 1.3636363636363635) internal successors, (255), 187 states have internal predecessors, (255), 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) [2021-12-28 09:40:13,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:13,284 INFO L93 Difference]: Finished difference Result 429 states and 564 transitions. [2021-12-28 09:40:13,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 09:40:13,290 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 429 states and 564 transitions. [2021-12-28 09:40:13,305 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 277 [2021-12-28 09:40:13,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 429 states to 399 states and 534 transitions. [2021-12-28 09:40:13,313 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 399 [2021-12-28 09:40:13,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 399 [2021-12-28 09:40:13,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 399 states and 534 transitions. [2021-12-28 09:40:13,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:13,320 INFO L681 BuchiCegarLoop]: Abstraction has 399 states and 534 transitions. [2021-12-28 09:40:13,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states and 534 transitions. [2021-12-28 09:40:13,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 230. [2021-12-28 09:40:13,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 230 states have (on average 1.3391304347826087) internal successors, (308), 229 states have internal predecessors, (308), 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) [2021-12-28 09:40:13,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 308 transitions. [2021-12-28 09:40:13,359 INFO L704 BuchiCegarLoop]: Abstraction has 230 states and 308 transitions. [2021-12-28 09:40:13,359 INFO L587 BuchiCegarLoop]: Abstraction has 230 states and 308 transitions. [2021-12-28 09:40:13,359 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:40:13,359 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 230 states and 308 transitions. [2021-12-28 09:40:13,360 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 160 [2021-12-28 09:40:13,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:13,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:13,362 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:13,362 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:13,362 INFO L791 eck$LassoCheckResult]: Stem: 806#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 725#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 726#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 774#L77 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; 775#L92 main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 677#L592 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 678#L567 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 692#L471 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 687#L927-2 [2021-12-28 09:40:13,363 INFO L793 eck$LassoCheckResult]: Loop: 687#L927-2 assume !false; 688#L928 assume test_~splverifierCounter~0#1 < 4; 756#L929 test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 769#L937 assume !(0 != test_~tmp~9#1); 651#L937-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 737#L947 assume !(0 != test_~tmp___0~2#1); 708#L947-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 754#L957 assume 0 != test_~tmp___2~0#1; 665#L963-2 assume { :begin_inline_timeShift } true; 659#L714 assume !(0 != ~pumpRunning~0); 660#L714-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 645#L772 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret36#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 646#L746-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 782#L738-3 assume { :end_inline_processEnvironment__wrappee__base } true; 729#L746-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 670#L772-1 assume { :end_inline_processEnvironment } true; 671#L721-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 744#L653-3 __utac_acc__Specification2_spec__2_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret28#1;havoc __utac_acc__Specification2_spec__2_#t~ret28#1; 753#L482 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 673#L482-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 727#L731 assume { :end_inline_timeShift } true; 687#L927-2 [2021-12-28 09:40:13,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:13,363 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-28 09:40:13,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:13,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189189704] [2021-12-28 09:40:13,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:13,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:13,391 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:13,401 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:13,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:13,402 INFO L85 PathProgramCache]: Analyzing trace with hash 2121906562, now seen corresponding path program 1 times [2021-12-28 09:40:13,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:13,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612625956] [2021-12-28 09:40:13,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:13,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:13,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:13,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:13,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612625956] [2021-12-28 09:40:13,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612625956] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:13,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:13,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 09:40:13,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522640846] [2021-12-28 09:40:13,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:13,417 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-28 09:40:13,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:13,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 09:40:13,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 09:40:13,418 INFO L87 Difference]: Start difference. First operand 230 states and 308 transitions. cyclomatic complexity: 81 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:40:13,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:13,471 INFO L93 Difference]: Finished difference Result 289 states and 371 transitions. [2021-12-28 09:40:13,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 09:40:13,472 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 289 states and 371 transitions. [2021-12-28 09:40:13,474 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 205 [2021-12-28 09:40:13,475 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 289 states to 289 states and 371 transitions. [2021-12-28 09:40:13,475 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 289 [2021-12-28 09:40:13,476 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 289 [2021-12-28 09:40:13,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 289 states and 371 transitions. [2021-12-28 09:40:13,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:13,478 INFO L681 BuchiCegarLoop]: Abstraction has 289 states and 371 transitions. [2021-12-28 09:40:13,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states and 371 transitions. [2021-12-28 09:40:13,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2021-12-28 09:40:13,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 289 states have (on average 1.2837370242214532) internal successors, (371), 288 states have internal predecessors, (371), 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) [2021-12-28 09:40:13,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 371 transitions. [2021-12-28 09:40:13,492 INFO L704 BuchiCegarLoop]: Abstraction has 289 states and 371 transitions. [2021-12-28 09:40:13,492 INFO L587 BuchiCegarLoop]: Abstraction has 289 states and 371 transitions. [2021-12-28 09:40:13,492 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:40:13,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 289 states and 371 transitions. [2021-12-28 09:40:13,494 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 205 [2021-12-28 09:40:13,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:13,494 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:13,496 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:13,496 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:13,496 INFO L791 eck$LassoCheckResult]: Stem: 1354#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1247#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 1248#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1303#L77 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; 1304#L92 main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 1203#L592 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1204#L567 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1215#L471 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1210#L927-2 [2021-12-28 09:40:13,497 INFO L793 eck$LassoCheckResult]: Loop: 1210#L927-2 assume !false; 1211#L928 assume test_~splverifierCounter~0#1 < 4; 1422#L929 test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 1420#L937 assume !(0 != test_~tmp~9#1); 1336#L937-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 1261#L947 assume !(0 != test_~tmp___0~2#1); 1231#L947-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1282#L957 assume 0 != test_~tmp___2~0#1; 1188#L963-2 assume { :begin_inline_timeShift } true; 1181#L714 assume !(0 != ~pumpRunning~0); 1182#L714-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1168#L772 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret36#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 1169#L746-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1170#L693-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1171#L698-1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 1326#L891-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1324#L891-5 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 1325#L897-1 processEnvironment__wrappee__methaneQuery_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5#1 := processEnvironment__wrappee__methaneQuery_#t~ret36#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret36#1; 1343#L750-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1345#L738-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1350#L746-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1191#L772-1 assume { :end_inline_processEnvironment } true; 1192#L721-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1432#L653-3 __utac_acc__Specification2_spec__2_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret28#1;havoc __utac_acc__Specification2_spec__2_#t~ret28#1; 1430#L482 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 1427#L482-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1330#L731 assume { :end_inline_timeShift } true; 1210#L927-2 [2021-12-28 09:40:13,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:13,497 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-28 09:40:13,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:13,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185621568] [2021-12-28 09:40:13,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:13,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:13,506 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:13,538 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:13,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:13,538 INFO L85 PathProgramCache]: Analyzing trace with hash -150535430, now seen corresponding path program 1 times [2021-12-28 09:40:13,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:13,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196107109] [2021-12-28 09:40:13,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:13,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:13,558 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:13,570 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:13,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:13,571 INFO L85 PathProgramCache]: Analyzing trace with hash 20239985, now seen corresponding path program 1 times [2021-12-28 09:40:13,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:13,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699809286] [2021-12-28 09:40:13,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:13,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:13,578 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:13,587 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:15,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:40:15 BoogieIcfgContainer [2021-12-28 09:40:15,950 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:40:15,951 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:40:15,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:40:15,951 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:40:15,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:12" (3/4) ... [2021-12-28 09:40:15,953 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:40:15,996 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:40:15,996 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:40:15,996 INFO L158 Benchmark]: Toolchain (without parser) took 4419.92ms. Allocated memory was 52.4MB in the beginning and 123.7MB in the end (delta: 71.3MB). Free memory was 29.5MB in the beginning and 62.4MB in the end (delta: -32.9MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:15,996 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory is still 34.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:40:15,997 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.76ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.3MB in the beginning and 43.1MB in the end (delta: -13.7MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-12-28 09:40:15,997 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.49ms. Allocated memory is still 67.1MB. Free memory was 43.1MB in the beginning and 39.3MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 09:40:15,997 INFO L158 Benchmark]: Boogie Preprocessor took 22.71ms. Allocated memory is still 67.1MB. Free memory was 39.3MB in the beginning and 36.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:15,998 INFO L158 Benchmark]: RCFGBuilder took 574.97ms. Allocated memory is still 67.1MB. Free memory was 36.6MB in the beginning and 44.0MB in the end (delta: -7.5MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2021-12-28 09:40:15,998 INFO L158 Benchmark]: BuchiAutomizer took 3391.16ms. Allocated memory was 67.1MB in the beginning and 123.7MB in the end (delta: 56.6MB). Free memory was 43.7MB in the beginning and 65.4MB in the end (delta: -21.7MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. [2021-12-28 09:40:15,998 INFO L158 Benchmark]: Witness Printer took 44.91ms. Allocated memory is still 123.7MB. Free memory was 65.4MB in the beginning and 62.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:15,999 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory is still 34.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.76ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.3MB in the beginning and 43.1MB in the end (delta: -13.7MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.49ms. Allocated memory is still 67.1MB. Free memory was 43.1MB in the beginning and 39.3MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.71ms. Allocated memory is still 67.1MB. Free memory was 39.3MB in the beginning and 36.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 574.97ms. Allocated memory is still 67.1MB. Free memory was 36.6MB in the beginning and 44.0MB in the end (delta: -7.5MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3391.16ms. Allocated memory was 67.1MB in the beginning and 123.7MB in the end (delta: 56.6MB). Free memory was 43.7MB in the beginning and 65.4MB in the end (delta: -21.7MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. * Witness Printer took 44.91ms. Allocated memory is still 123.7MB. Free memory was 65.4MB in the beginning and 62.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 289 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 169 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 289 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1323 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1323 mSDsluCounter, 1509 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1041 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 468 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 927]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b3fb4c4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fc4d822=29, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32370ede=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1408f830=0, retValue_acc=0, NULL=1, tmp=0, methaneLevelCritical=0, tmp=0, \result=0, tmp=1, retValue_acc=1, retValue_acc=0, \result=1, \result=1, retValue_acc=1, retValue_acc=0, tmp=0, tmp___2=29, methAndRunningLastTime=0, tmp=1, cleanupTimeShifts=4, \result=0, head=0, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d01eb8f=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d3a017a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4378a7f7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72fb22f7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22d457e2=0, tmp___0=0, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ad6c0be=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 927]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L266] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L465] int methAndRunningLastTime ; [L504] int cleanupTimeShifts = 4; [L610] int waterLevel = 1; [L611] int methaneLevelCritical = 0; [L707] int pumpRunning = 0; [L708] int systemActive = 1; [L583] int retValue_acc ; [L584] int tmp ; [L588] FCALL select_helpers() [L589] FCALL select_features() [L590] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); [L590] RET, EXPR valid_product() [L590] tmp = valid_product() [L592] COND TRUE \read(tmp) [L594] FCALL setup() [L595] CALL runTest() [L576] CALL __utac_acc__Specification2_spec__1() [L470] methAndRunningLastTime = 0 [L576] RET __utac_acc__Specification2_spec__1() [L577] CALL test() [L918] int splverifierCounter ; [L919] int tmp ; [L920] int tmp___0 ; [L921] int tmp___1 ; [L922] int tmp___2 ; [L925] splverifierCounter = 0 Loop: [L927] COND TRUE 1 [L929] COND TRUE splverifierCounter < 4 [L935] tmp = __VERIFIER_nondet_int() [L937] COND FALSE !(\read(tmp)) [L945] tmp___0 = __VERIFIER_nondet_int() [L947] COND FALSE !(\read(tmp___0)) [L955] tmp___2 = __VERIFIER_nondet_int() [L957] COND TRUE \read(tmp___2) [L972] CALL timeShift() [L714] COND FALSE !(\read(pumpRunning)) [L721] COND TRUE \read(systemActive) [L723] CALL processEnvironment() [L769] int tmp ; [L772] COND FALSE !(\read(pumpRunning)) [L787] CALL processEnvironment__wrappee__methaneQuery() [L743] int tmp ; [L746] COND TRUE ! pumpRunning [L748] CALL, EXPR isHighWaterLevel() [L883] int retValue_acc ; [L884] int tmp ; [L885] int tmp___0 ; [L889] CALL, EXPR isHighWaterSensorDry() [L690] int retValue_acc ; [L693] COND TRUE waterLevel < 2 [L694] retValue_acc = 1 [L695] return (retValue_acc); [L889] RET, EXPR isHighWaterSensorDry() [L889] tmp = isHighWaterSensorDry() [L891] COND TRUE \read(tmp) [L892] tmp___0 = 0 [L896] retValue_acc = tmp___0 [L897] return (retValue_acc); [L748] RET, EXPR isHighWaterLevel() [L748] tmp = isHighWaterLevel() [L750] COND FALSE !(\read(tmp)) [L756] FCALL processEnvironment__wrappee__base() [L787] RET processEnvironment__wrappee__methaneQuery() [L723] RET processEnvironment() [L729] CALL __utac_acc__Specification2_spec__2() [L475] int tmp ; [L476] int tmp___0 ; [L480] CALL, EXPR isMethaneLevelCritical() [L649] int retValue_acc ; [L652] retValue_acc = methaneLevelCritical [L653] return (retValue_acc); [L480] RET, EXPR isMethaneLevelCritical() [L480] tmp = isMethaneLevelCritical() [L482] COND FALSE !(\read(tmp)) [L498] methAndRunningLastTime = 0 [L729] RET __utac_acc__Specification2_spec__2() [L972] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-28 09:40:16,035 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)