./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product35.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_spec1_product35.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 d8d5749cb33f10edd647435755bf2e2192f6038b258c1bda289ea3f61ba8ee50 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:39:26,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:39:26,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:39:26,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:39:26,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:39:26,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:39:26,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:39:26,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:39:26,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:39:26,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:39:26,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:39:26,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:39:26,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:39:26,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:39:26,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:39:26,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:39:26,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:39:26,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:39:26,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:39:26,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:39:26,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:39:26,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:39:26,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:39:26,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:39:26,980 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:39:26,980 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:39:26,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:39:26,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:39:26,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:39:26,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:39:26,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:39:26,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:39:26,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:39:26,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:39:26,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:39:26,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:39:26,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:39:26,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:39:26,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:39:26,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:39:26,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:39:27,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:39:27,032 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:39:27,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:39:27,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:39:27,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:39:27,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:39:27,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:39:27,036 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:39:27,036 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:39:27,036 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:39:27,036 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:39:27,037 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:39:27,037 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:39:27,037 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:39:27,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:39:27,037 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:39:27,037 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:39:27,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:39:27,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:39:27,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:39:27,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:39:27,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:39:27,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:39:27,038 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:39:27,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:39:27,039 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:39:27,039 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:39:27,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:39:27,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:39:27,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:39:27,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:39:27,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:39:27,040 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:39:27,041 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8d5749cb33f10edd647435755bf2e2192f6038b258c1bda289ea3f61ba8ee50 [2021-12-28 09:39:27,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:39:27,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:39:27,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:39:27,358 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:39:27,359 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:39:27,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2021-12-28 09:39:27,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77074f2fa/439a1d5733e6417e93ad0b6d32708d1e/FLAG790c86d95 [2021-12-28 09:39:27,881 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:39:27,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2021-12-28 09:39:27,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77074f2fa/439a1d5733e6417e93ad0b6d32708d1e/FLAG790c86d95 [2021-12-28 09:39:27,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77074f2fa/439a1d5733e6417e93ad0b6d32708d1e [2021-12-28 09:39:27,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:39:27,914 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:39:27,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:39:27,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:39:27,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:39:27,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:39:27" (1/1) ... [2021-12-28 09:39:27,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e585070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:27, skipping insertion in model container [2021-12-28 09:39:27,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:39:27" (1/1) ... [2021-12-28 09:39:27,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:39:27,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:39:28,126 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c[3064,3077] [2021-12-28 09:39:28,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:39:28,234 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:39:28,263 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c[3064,3077] [2021-12-28 09:39:28,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:39:28,335 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:39:28,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:28 WrapperNode [2021-12-28 09:39:28,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:39:28,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:39:28,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:39:28,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:39:28,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:28" (1/1) ... [2021-12-28 09:39:28,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:28" (1/1) ... [2021-12-28 09:39:28,392 INFO L137 Inliner]: procedures = 53, calls = 151, calls flagged for inlining = 48, calls inlined = 49, statements flattened = 396 [2021-12-28 09:39:28,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:39:28,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:39:28,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:39:28,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:39:28,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:28" (1/1) ... [2021-12-28 09:39:28,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:28" (1/1) ... [2021-12-28 09:39:28,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:28" (1/1) ... [2021-12-28 09:39:28,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:28" (1/1) ... [2021-12-28 09:39:28,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:28" (1/1) ... [2021-12-28 09:39:28,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:28" (1/1) ... [2021-12-28 09:39:28,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:28" (1/1) ... [2021-12-28 09:39:28,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:39:28,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:39:28,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:39:28,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:39:28,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:28" (1/1) ... [2021-12-28 09:39:28,424 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:39:28,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:39:28,467 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 09:39:28,473 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 09:39:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:39:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:39:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:39:28,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:39:28,681 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:39:28,682 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:39:29,026 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:39:29,035 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:39:29,035 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:39:29,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:39:29 BoogieIcfgContainer [2021-12-28 09:39:29,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:39:29,039 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:39:29,039 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:39:29,042 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:39:29,042 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:39:29,042 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:39:27" (1/3) ... [2021-12-28 09:39:29,043 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3eadb50a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:39:29, skipping insertion in model container [2021-12-28 09:39:29,043 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:39:29,043 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:28" (2/3) ... [2021-12-28 09:39:29,044 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3eadb50a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:39:29, skipping insertion in model container [2021-12-28 09:39:29,044 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:39:29,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:39:29" (3/3) ... [2021-12-28 09:39:29,045 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2021-12-28 09:39:29,086 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:39:29,087 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:39:29,087 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:39:29,087 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:39:29,087 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:39:29,087 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:39:29,087 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:39:29,087 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:39:29,104 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.3796296296296295) internal successors, (149), 108 states have internal predecessors, (149), 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 09:39:29,123 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 70 [2021-12-28 09:39:29,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:39:29,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:39:29,130 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:29,130 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 09:39:29,130 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:39:29,131 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.3796296296296295) internal successors, (149), 108 states have internal predecessors, (149), 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 09:39:29,135 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 70 [2021-12-28 09:39:29,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:39:29,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:39:29,136 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:29,136 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 09:39:29,141 INFO L791 eck$LassoCheckResult]: Stem: 103#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;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 37#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 73#L452true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 35#L445true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 55#L460true main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 29#L547true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 22#L524true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 78#L200-2true [2021-12-28 09:39:29,141 INFO L793 eck$LassoCheckResult]: Loop: 78#L200-2true assume !false; 64#L201true assume test_~splverifierCounter~0#1 < 4; 81#L202true test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 10#L210true assume !(0 != test_~tmp~1#1); 105#L210-2true test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 66#L220true assume !(0 != test_~tmp___0~1#1); 42#L220-2true test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 74#L230true assume 0 != test_~tmp___2~0#1; 58#L236-2true assume { :begin_inline_timeShift } true; 21#L267true assume !(0 != ~pumpRunning~0); 83#L267-2true assume !(0 != ~systemActive~0); 76#L274-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 53#L100true __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; 57#L169true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 47#L169-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 62#L284true assume { :end_inline_timeShift } true; 78#L200-2true [2021-12-28 09:39:29,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:29,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-28 09:39:29,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:29,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258615414] [2021-12-28 09:39:29,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:29,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:29,237 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:29,286 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:29,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:29,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1486867772, now seen corresponding path program 1 times [2021-12-28 09:39:29,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:29,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071439802] [2021-12-28 09:39:29,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:29,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:29,294 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:29,298 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:29,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:29,300 INFO L85 PathProgramCache]: Analyzing trace with hash -131448696, now seen corresponding path program 1 times [2021-12-28 09:39:29,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:29,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080716185] [2021-12-28 09:39:29,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:29,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:39:29,398 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 09:39:29,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:39:29,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080716185] [2021-12-28 09:39:29,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080716185] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:39:29,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:39:29,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:39:29,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058847510] [2021-12-28 09:39:29,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:39:29,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:39:29,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 09:39:29,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 09:39:29,534 INFO L87 Difference]: Start difference. First operand has 109 states, 108 states have (on average 1.3796296296296295) internal successors, (149), 108 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:39:29,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:39:29,603 INFO L93 Difference]: Finished difference Result 269 states and 347 transitions. [2021-12-28 09:39:29,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 09:39:29,607 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 269 states and 347 transitions. [2021-12-28 09:39:29,612 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 171 [2021-12-28 09:39:29,616 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 269 states to 239 states and 317 transitions. [2021-12-28 09:39:29,616 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 239 [2021-12-28 09:39:29,617 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 239 [2021-12-28 09:39:29,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 239 states and 317 transitions. [2021-12-28 09:39:29,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:39:29,619 INFO L681 BuchiCegarLoop]: Abstraction has 239 states and 317 transitions. [2021-12-28 09:39:29,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states and 317 transitions. [2021-12-28 09:39:29,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 148. [2021-12-28 09:39:29,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 148 states have (on average 1.3243243243243243) internal successors, (196), 147 states have internal predecessors, (196), 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 09:39:29,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2021-12-28 09:39:29,662 INFO L704 BuchiCegarLoop]: Abstraction has 148 states and 196 transitions. [2021-12-28 09:39:29,662 INFO L587 BuchiCegarLoop]: Abstraction has 148 states and 196 transitions. [2021-12-28 09:39:29,662 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:39:29,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 196 transitions. [2021-12-28 09:39:29,664 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 106 [2021-12-28 09:39:29,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:39:29,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:39:29,664 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:29,664 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] [2021-12-28 09:39:29,665 INFO L791 eck$LassoCheckResult]: Stem: 480#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;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 474#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 406#L452 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 407#L445 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 473#L460 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 464#L547 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 452#L524 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 434#L200-2 [2021-12-28 09:39:29,665 INFO L793 eck$LassoCheckResult]: Loop: 434#L200-2 assume !false; 435#L201 assume test_~splverifierCounter~0#1 < 4; 440#L202 test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 416#L210 assume !(0 != test_~tmp~1#1); 418#L210-2 test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 485#L220 assume !(0 != test_~tmp___0~1#1); 399#L220-2 test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 408#L230 assume 0 != test_~tmp___2~0#1; 410#L236-2 assume { :begin_inline_timeShift } true; 451#L267 assume !(0 != ~pumpRunning~0); 443#L267-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 445#L299 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 469#L291-1 assume { :end_inline_processEnvironment__wrappee__base } true; 424#L299-1 assume { :end_inline_processEnvironment } true; 421#L274-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 422#L100 __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; 489#L169 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 482#L169-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 483#L284 assume { :end_inline_timeShift } true; 434#L200-2 [2021-12-28 09:39:29,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:29,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-28 09:39:29,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:29,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200753333] [2021-12-28 09:39:29,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:29,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:29,677 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:29,690 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:29,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:29,690 INFO L85 PathProgramCache]: Analyzing trace with hash 101413134, now seen corresponding path program 1 times [2021-12-28 09:39:29,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:29,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194213432] [2021-12-28 09:39:29,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:29,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:39:29,703 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 09:39:29,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:39:29,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194213432] [2021-12-28 09:39:29,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194213432] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:39:29,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:39:29,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 09:39:29,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907459779] [2021-12-28 09:39:29,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:39:29,706 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-28 09:39:29,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:39:29,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 09:39:29,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 09:39:29,707 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. cyclomatic complexity: 51 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 09:39:29,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:39:29,748 INFO L93 Difference]: Finished difference Result 195 states and 247 transitions. [2021-12-28 09:39:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 09:39:29,748 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 247 transitions. [2021-12-28 09:39:29,750 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 143 [2021-12-28 09:39:29,751 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 195 states and 247 transitions. [2021-12-28 09:39:29,751 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2021-12-28 09:39:29,752 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2021-12-28 09:39:29,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 247 transitions. [2021-12-28 09:39:29,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:39:29,753 INFO L681 BuchiCegarLoop]: Abstraction has 195 states and 247 transitions. [2021-12-28 09:39:29,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 247 transitions. [2021-12-28 09:39:29,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-12-28 09:39:29,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 195 states have (on average 1.2666666666666666) internal successors, (247), 194 states have internal predecessors, (247), 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 09:39:29,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 247 transitions. [2021-12-28 09:39:29,759 INFO L704 BuchiCegarLoop]: Abstraction has 195 states and 247 transitions. [2021-12-28 09:39:29,759 INFO L587 BuchiCegarLoop]: Abstraction has 195 states and 247 transitions. [2021-12-28 09:39:29,759 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:39:29,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 195 states and 247 transitions. [2021-12-28 09:39:29,760 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 143 [2021-12-28 09:39:29,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:39:29,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:39:29,761 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:29,761 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] [2021-12-28 09:39:29,761 INFO L791 eck$LassoCheckResult]: Stem: 838#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;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 830#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 755#L452 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 756#L445 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 828#L460 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 818#L547 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 804#L524 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 805#L200-2 [2021-12-28 09:39:29,761 INFO L793 eck$LassoCheckResult]: Loop: 805#L200-2 assume !false; 915#L201 assume test_~splverifierCounter~0#1 < 4; 916#L202 test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 932#L210 assume !(0 != test_~tmp~1#1); 930#L210-2 test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 928#L220 assume !(0 != test_~tmp___0~1#1); 926#L220-2 test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 757#L230 assume 0 != test_~tmp___2~0#1; 759#L236-2 assume { :begin_inline_timeShift } true; 803#L267 assume !(0 != ~pumpRunning~0); 794#L267-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 795#L299 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 823#L140 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 846#L145 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 763#L401 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~2#1 := 0; 764#L401-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 776#L407 processEnvironment_#t~ret15#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret15#1;havoc processEnvironment_#t~ret15#1; 777#L303 assume !(0 != processEnvironment_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 772#L291 assume { :end_inline_processEnvironment__wrappee__base } true; 773#L299-1 assume { :end_inline_processEnvironment } true; 770#L274-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 771#L100 __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; 847#L169 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 840#L169-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 841#L284 assume { :end_inline_timeShift } true; 805#L200-2 [2021-12-28 09:39:29,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:29,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-28 09:39:29,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:29,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833736870] [2021-12-28 09:39:29,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:29,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:29,772 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:29,782 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:29,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:29,782 INFO L85 PathProgramCache]: Analyzing trace with hash 477063094, now seen corresponding path program 1 times [2021-12-28 09:39:29,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:29,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843226895] [2021-12-28 09:39:29,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:29,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:29,787 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:29,793 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:29,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:29,793 INFO L85 PathProgramCache]: Analyzing trace with hash -773941646, now seen corresponding path program 1 times [2021-12-28 09:39:29,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:29,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779515970] [2021-12-28 09:39:29,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:29,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:29,804 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:29,816 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:32,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:39:32 BoogieIcfgContainer [2021-12-28 09:39:32,113 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:39:32,113 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:39:32,113 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:39:32,114 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:39:32,114 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:39:29" (3/4) ... [2021-12-28 09:39:32,116 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:39:32,150 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:39:32,150 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:39:32,150 INFO L158 Benchmark]: Toolchain (without parser) took 4236.32ms. Allocated memory was 60.8MB in the beginning and 125.8MB in the end (delta: 65.0MB). Free memory was 41.1MB in the beginning and 70.4MB in the end (delta: -29.3MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2021-12-28 09:39:32,151 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 60.8MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:39:32,151 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.77ms. Allocated memory is still 60.8MB. Free memory was 40.9MB in the beginning and 36.6MB in the end (delta: 4.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-28 09:39:32,151 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.87ms. Allocated memory is still 60.8MB. Free memory was 36.4MB in the beginning and 33.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:39:32,152 INFO L158 Benchmark]: Boogie Preprocessor took 22.03ms. Allocated memory is still 60.8MB. Free memory was 33.6MB in the beginning and 31.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:39:32,152 INFO L158 Benchmark]: RCFGBuilder took 622.36ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 31.9MB in the beginning and 52.3MB in the end (delta: -20.4MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2021-12-28 09:39:32,152 INFO L158 Benchmark]: BuchiAutomizer took 3074.00ms. Allocated memory was 81.8MB in the beginning and 125.8MB in the end (delta: 44.0MB). Free memory was 52.0MB in the beginning and 72.5MB in the end (delta: -20.5MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. [2021-12-28 09:39:32,153 INFO L158 Benchmark]: Witness Printer took 36.57ms. Allocated memory is still 125.8MB. Free memory was 72.5MB in the beginning and 70.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:39:32,154 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 60.8MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 421.77ms. Allocated memory is still 60.8MB. Free memory was 40.9MB in the beginning and 36.6MB in the end (delta: 4.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.87ms. Allocated memory is still 60.8MB. Free memory was 36.4MB in the beginning and 33.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.03ms. Allocated memory is still 60.8MB. Free memory was 33.6MB in the beginning and 31.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 622.36ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 31.9MB in the beginning and 52.3MB in the end (delta: -20.4MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 3074.00ms. Allocated memory was 81.8MB in the beginning and 125.8MB in the end (delta: 44.0MB). Free memory was 52.0MB in the beginning and 72.5MB in the end (delta: -20.5MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. * Witness Printer took 36.57ms. Allocated memory is still 125.8MB. Free memory was 72.5MB in the beginning and 70.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 195 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 91 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 195 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 720 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 720 mSDsluCounter, 939 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 678 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 261 mSDtfsCounter, 60 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: 200]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e464118=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52da026d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54057685=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ddc96f1=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@99666fb=0, retValue_acc=1, methaneLevelCritical=0, \result=0, retValue_acc=1, retValue_acc=0, \result=1, retValue_acc=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3894fdc6=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@613a6493=0, tmp=1, tmp___2=29, tmp=0, tmp=1, cleanupTimeShifts=4, \result=0, tmp=0, head=0, retValue_acc=0, tmp___1=0, NULL=0, tmp=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a8c3ec8=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74fe1b44=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 200]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L260] int pumpRunning = 0; [L261] int systemActive = 1; [L465] int cleanupTimeShifts = 4; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L538] int retValue_acc ; [L539] int tmp ; [L543] FCALL select_helpers() [L544] FCALL select_features() [L545] CALL, EXPR valid_product() [L456] int retValue_acc ; [L459] retValue_acc = 1 [L460] return (retValue_acc); [L545] RET, EXPR valid_product() [L545] tmp = valid_product() [L547] COND TRUE \read(tmp) [L549] FCALL setup() [L550] CALL runTest() [L532] CALL test() [L191] int splverifierCounter ; [L192] int tmp ; [L193] int tmp___0 ; [L194] int tmp___1 ; [L195] int tmp___2 ; [L198] splverifierCounter = 0 Loop: [L200] COND TRUE 1 [L202] COND TRUE splverifierCounter < 4 [L208] tmp = __VERIFIER_nondet_int() [L210] COND FALSE !(\read(tmp)) [L218] tmp___0 = __VERIFIER_nondet_int() [L220] COND FALSE !(\read(tmp___0)) [L228] tmp___2 = __VERIFIER_nondet_int() [L230] COND TRUE \read(tmp___2) [L245] CALL timeShift() [L267] COND FALSE !(\read(pumpRunning)) [L274] COND TRUE \read(systemActive) [L276] CALL processEnvironment() [L296] int tmp ; [L299] COND TRUE ! pumpRunning [L301] CALL, EXPR isHighWaterLevel() [L393] int retValue_acc ; [L394] int tmp ; [L395] int tmp___0 ; [L399] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L399] RET, EXPR isHighWaterSensorDry() [L399] tmp = isHighWaterSensorDry() [L401] COND TRUE \read(tmp) [L402] tmp___0 = 0 [L406] retValue_acc = tmp___0 [L407] return (retValue_acc); [L301] RET, EXPR isHighWaterLevel() [L301] tmp = isHighWaterLevel() [L303] COND FALSE !(\read(tmp)) [L309] FCALL processEnvironment__wrappee__base() [L276] RET processEnvironment() [L282] CALL __utac_acc__Specification1_spec__1() [L162] int tmp ; [L163] int tmp___0 ; [L167] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L167] RET, EXPR isMethaneLevelCritical() [L167] tmp = isMethaneLevelCritical() [L169] COND FALSE !(\read(tmp)) [L282] RET __utac_acc__Specification1_spec__1() [L245] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-28 09:39:32,213 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)