./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 685bdac90b32b89d64927338575dc6f79737e9f84bb9272d4bfb0c942aa4ae35 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:25,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:25,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:25,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:25,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:25,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:25,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:25,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:25,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:25,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:25,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:25,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:25,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:25,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:25,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:26,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:26,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:26,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:26,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:26,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:26,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:26,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:26,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:26,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:26,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:26,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:26,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:26,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:26,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:26,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:26,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:26,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:26,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:26,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:26,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:26,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:26,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:26,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:26,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:26,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:26,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:26,024 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:26,047 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:26,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:26,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:26,048 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:26,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:26,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:26,049 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:26,049 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:26,049 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:26,049 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:26,050 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:26,050 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:26,050 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:26,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:26,051 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:26,051 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:26,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:26,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:26,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:26,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:26,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:26,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:26,052 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:26,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:26,052 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:26,052 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:26,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:26,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:26,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:26,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:26,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:26,054 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:26,054 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 685bdac90b32b89d64927338575dc6f79737e9f84bb9272d4bfb0c942aa4ae35 [2022-02-21 04:16:26,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:26,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:26,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:26,325 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:26,326 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:26,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c [2022-02-21 04:16:26,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/577cc98ae/b5b12712e69d4003b07b9c6031a1bfa2/FLAG7560b9244 [2022-02-21 04:16:26,842 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:26,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c [2022-02-21 04:16:26,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/577cc98ae/b5b12712e69d4003b07b9c6031a1bfa2/FLAG7560b9244 [2022-02-21 04:16:26,870 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/577cc98ae/b5b12712e69d4003b07b9c6031a1bfa2 [2022-02-21 04:16:26,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:26,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:26,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:26,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:26,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:26,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:26" (1/1) ... [2022-02-21 04:16:26,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e853153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:26, skipping insertion in model container [2022-02-21 04:16:26,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:26" (1/1) ... [2022-02-21 04:16:26,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:26,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:27,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c[19412,19425] [2022-02-21 04:16:27,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:27,316 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:27,381 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c[19412,19425] [2022-02-21 04:16:27,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:27,409 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:27,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:27 WrapperNode [2022-02-21 04:16:27,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:27,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:27,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:27,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:27,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:27" (1/1) ... [2022-02-21 04:16:27,451 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:27" (1/1) ... [2022-02-21 04:16:27,516 INFO L137 Inliner]: procedures = 58, calls = 161, calls flagged for inlining = 58, calls inlined = 140, statements flattened = 1024 [2022-02-21 04:16:27,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:27,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:27,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:27,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:27,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:27" (1/1) ... [2022-02-21 04:16:27,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:27" (1/1) ... [2022-02-21 04:16:27,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:27" (1/1) ... [2022-02-21 04:16:27,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:27" (1/1) ... [2022-02-21 04:16:27,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:27" (1/1) ... [2022-02-21 04:16:27,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:27" (1/1) ... [2022-02-21 04:16:27,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:27" (1/1) ... [2022-02-21 04:16:27,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:27,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:27,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:27,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:27,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:27" (1/1) ... [2022-02-21 04:16:27,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:27,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:27,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:16:27,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:16:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:27,742 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:27,744 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:28,455 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:28,469 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:28,470 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:28,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:28 BoogieIcfgContainer [2022-02-21 04:16:28,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:28,474 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:28,474 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:28,476 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:28,477 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:28,477 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:26" (1/3) ... [2022-02-21 04:16:28,477 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@525f9b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:28, skipping insertion in model container [2022-02-21 04:16:28,478 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:28,478 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:27" (2/3) ... [2022-02-21 04:16:28,478 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@525f9b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:28, skipping insertion in model container [2022-02-21 04:16:28,478 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:28,478 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:28" (3/3) ... [2022-02-21 04:16:28,479 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product55.cil.c [2022-02-21 04:16:28,517 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:28,518 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:28,518 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:28,518 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:28,518 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:28,518 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:28,518 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:28,518 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:28,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 278 states, 277 states have (on average 1.3754512635379061) internal successors, (381), 277 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:28,608 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2022-02-21 04:16:28,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:28,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:28,613 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:28,614 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:28,614 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:28,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 278 states, 277 states have (on average 1.3754512635379061) internal successors, (381), 277 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:28,632 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2022-02-21 04:16:28,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:28,632 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:28,633 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:28,633 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:28,637 INFO L791 eck$LassoCheckResult]: Stem: 256#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 194#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 206#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 261#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 21#L83true main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 36#L1001true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 242#L977true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 67#L885true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 143#L212-2true [2022-02-21 04:16:28,637 INFO L793 eck$LassoCheckResult]: Loop: 143#L212-2true assume !false; 138#L213true assume test_~splverifierCounter~0#1 < 4; 263#L214true test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 96#L222true assume !(0 != test_~tmp~0#1); 14#L222-2true test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 148#L232true assume !(0 != test_~tmp___0~0#1); 94#L232-2true test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 275#L242true assume 0 != test_~tmp___2~0#1; 188#L248-2true assume { :begin_inline_timeShift } true; 167#L281true assume !(0 != ~pumpRunning~0); 217#L281-2true assume !(0 != ~systemActive~0); 209#L288-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 162#L139-1true __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; 10#L896true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 219#L896-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 184#L298true assume { :end_inline_timeShift } true; 143#L212-2true [2022-02-21 04:16:28,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:28,641 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:16:28,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:28,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819772520] [2022-02-21 04:16:28,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:28,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:28,723 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:28,781 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:28,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:28,783 INFO L85 PathProgramCache]: Analyzing trace with hash -2025406390, now seen corresponding path program 1 times [2022-02-21 04:16:28,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:28,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509481089] [2022-02-21 04:16:28,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:28,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:28,789 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:28,794 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:28,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:28,796 INFO L85 PathProgramCache]: Analyzing trace with hash 2107273523, now seen corresponding path program 1 times [2022-02-21 04:16:28,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:28,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14173201] [2022-02-21 04:16:28,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:28,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:28,940 INFO L290 TraceCheckUtils]: 0: Hoare triple {286#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; {288#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:28,943 INFO L290 TraceCheckUtils]: 1: Hoare triple {288#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; {288#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:28,944 INFO L290 TraceCheckUtils]: 2: Hoare triple {288#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {288#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:28,945 INFO L290 TraceCheckUtils]: 3: Hoare triple {288#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~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; {289#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:28,945 INFO L290 TraceCheckUtils]: 4: Hoare triple {289#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; {290#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} is VALID [2022-02-21 04:16:28,945 INFO L290 TraceCheckUtils]: 5: Hoare triple {290#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; {291#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:28,946 INFO L290 TraceCheckUtils]: 6: Hoare triple {291#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; {291#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:28,946 INFO L290 TraceCheckUtils]: 7: Hoare triple {291#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {291#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:28,947 INFO L290 TraceCheckUtils]: 8: Hoare triple {291#(not (= 0 ~systemActive~0))} assume !false; {291#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:28,947 INFO L290 TraceCheckUtils]: 9: Hoare triple {291#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {291#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:28,947 INFO L290 TraceCheckUtils]: 10: Hoare triple {291#(not (= 0 ~systemActive~0))} test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; {291#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:28,948 INFO L290 TraceCheckUtils]: 11: Hoare triple {291#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0#1); {291#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:28,948 INFO L290 TraceCheckUtils]: 12: Hoare triple {291#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; {291#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:28,949 INFO L290 TraceCheckUtils]: 13: Hoare triple {291#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {291#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:28,949 INFO L290 TraceCheckUtils]: 14: Hoare triple {291#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; {291#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:28,950 INFO L290 TraceCheckUtils]: 15: Hoare triple {291#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {291#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:28,950 INFO L290 TraceCheckUtils]: 16: Hoare triple {291#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {291#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:28,951 INFO L290 TraceCheckUtils]: 17: Hoare triple {291#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {291#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:28,951 INFO L290 TraceCheckUtils]: 18: Hoare triple {291#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {287#false} is VALID [2022-02-21 04:16:28,952 INFO L290 TraceCheckUtils]: 19: Hoare triple {287#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; {287#false} is VALID [2022-02-21 04:16:28,952 INFO L290 TraceCheckUtils]: 20: Hoare triple {287#false} __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; {287#false} is VALID [2022-02-21 04:16:28,953 INFO L290 TraceCheckUtils]: 21: Hoare triple {287#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; {287#false} is VALID [2022-02-21 04:16:28,953 INFO L290 TraceCheckUtils]: 22: Hoare triple {287#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {287#false} is VALID [2022-02-21 04:16:28,954 INFO L290 TraceCheckUtils]: 23: Hoare triple {287#false} assume { :end_inline_timeShift } true; {287#false} is VALID [2022-02-21 04:16:28,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:28,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:28,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14173201] [2022-02-21 04:16:28,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14173201] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:28,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:28,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:28,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654065674] [2022-02-21 04:16:28,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:29,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:29,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:29,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:29,077 INFO L87 Difference]: Start difference. First operand has 278 states, 277 states have (on average 1.3754512635379061) internal successors, (381), 277 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:30,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:30,175 INFO L93 Difference]: Finished difference Result 609 states and 816 transitions. [2022-02-21 04:16:30,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:16:30,176 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:30,206 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:30,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 609 states and 816 transitions. [2022-02-21 04:16:30,235 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 397 [2022-02-21 04:16:30,252 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 609 states to 579 states and 786 transitions. [2022-02-21 04:16:30,253 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 579 [2022-02-21 04:16:30,254 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 579 [2022-02-21 04:16:30,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 579 states and 786 transitions. [2022-02-21 04:16:30,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:30,256 INFO L681 BuchiCegarLoop]: Abstraction has 579 states and 786 transitions. [2022-02-21 04:16:30,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states and 786 transitions. [2022-02-21 04:16:30,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 320. [2022-02-21 04:16:30,289 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:30,291 INFO L82 GeneralOperation]: Start isEquivalent. First operand 579 states and 786 transitions. Second operand has 320 states, 320 states have (on average 1.35625) internal successors, (434), 319 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:30,292 INFO L74 IsIncluded]: Start isIncluded. First operand 579 states and 786 transitions. Second operand has 320 states, 320 states have (on average 1.35625) internal successors, (434), 319 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:30,294 INFO L87 Difference]: Start difference. First operand 579 states and 786 transitions. Second operand has 320 states, 320 states have (on average 1.35625) internal successors, (434), 319 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:30,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:30,315 INFO L93 Difference]: Finished difference Result 579 states and 786 transitions. [2022-02-21 04:16:30,315 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 786 transitions. [2022-02-21 04:16:30,318 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:30,318 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:30,319 INFO L74 IsIncluded]: Start isIncluded. First operand has 320 states, 320 states have (on average 1.35625) internal successors, (434), 319 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 579 states and 786 transitions. [2022-02-21 04:16:30,320 INFO L87 Difference]: Start difference. First operand has 320 states, 320 states have (on average 1.35625) internal successors, (434), 319 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 579 states and 786 transitions. [2022-02-21 04:16:30,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:30,338 INFO L93 Difference]: Finished difference Result 579 states and 786 transitions. [2022-02-21 04:16:30,338 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 786 transitions. [2022-02-21 04:16:30,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:30,340 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:30,340 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:30,340 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:30,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 320 states have (on average 1.35625) internal successors, (434), 319 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:30,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 434 transitions. [2022-02-21 04:16:30,348 INFO L704 BuchiCegarLoop]: Abstraction has 320 states and 434 transitions. [2022-02-21 04:16:30,348 INFO L587 BuchiCegarLoop]: Abstraction has 320 states and 434 transitions. [2022-02-21 04:16:30,348 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:30,348 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 320 states and 434 transitions. [2022-02-21 04:16:30,349 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 220 [2022-02-21 04:16:30,349 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:30,350 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:30,350 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:30,350 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] [2022-02-21 04:16:30,350 INFO L791 eck$LassoCheckResult]: Stem: 1170#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 1150#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1151#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1158#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 937#L83 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 938#L1001 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 969#L977 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1018#L885 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1019#L212-2 [2022-02-21 04:16:30,351 INFO L793 eck$LassoCheckResult]: Loop: 1019#L212-2 assume !false; 1103#L213 assume test_~splverifierCounter~0#1 < 4; 1104#L214 test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 1052#L222 assume !(0 != test_~tmp~0#1); 927#L222-2 test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 928#L232 assume !(0 != test_~tmp___0~0#1); 1048#L232-2 test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 1049#L242 assume 0 != test_~tmp___2~0#1; 1115#L248-2 assume { :begin_inline_timeShift } true; 1134#L281 assume !(0 != ~pumpRunning~0); 996#L281-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1013#L365 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret17#1, isMethaneAlarm_~retValue_acc~6#1;havoc isMethaneAlarm_~retValue_acc~6#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 965#L139 isMethaneAlarm_#t~ret17#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~6#1 := isMethaneAlarm_#t~ret17#1;havoc isMethaneAlarm_#t~ret17#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~6#1; 966#L409 processEnvironment_#t~ret16#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret16#1;havoc processEnvironment_#t~ret16#1; 1100#L369 assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1097#L399-1 assume { :end_inline_deactivatePump } true; 914#L365-1 assume { :end_inline_processEnvironment } true; 915#L288-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1129#L139-1 __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; 917#L896 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 919#L896-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1146#L298 assume { :end_inline_timeShift } true; 1019#L212-2 [2022-02-21 04:16:30,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:30,351 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:16:30,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:30,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750638545] [2022-02-21 04:16:30,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:30,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:30,377 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:30,393 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:30,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:30,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1274714957, now seen corresponding path program 1 times [2022-02-21 04:16:30,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:30,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714824295] [2022-02-21 04:16:30,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:30,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:30,410 INFO L290 TraceCheckUtils]: 0: Hoare triple {2388#true} assume !false; {2388#true} is VALID [2022-02-21 04:16:30,410 INFO L290 TraceCheckUtils]: 1: Hoare triple {2388#true} assume test_~splverifierCounter~0#1 < 4; {2388#true} is VALID [2022-02-21 04:16:30,411 INFO L290 TraceCheckUtils]: 2: Hoare triple {2388#true} test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; {2388#true} is VALID [2022-02-21 04:16:30,411 INFO L290 TraceCheckUtils]: 3: Hoare triple {2388#true} assume !(0 != test_~tmp~0#1); {2388#true} is VALID [2022-02-21 04:16:30,411 INFO L290 TraceCheckUtils]: 4: Hoare triple {2388#true} test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; {2388#true} is VALID [2022-02-21 04:16:30,411 INFO L290 TraceCheckUtils]: 5: Hoare triple {2388#true} assume !(0 != test_~tmp___0~0#1); {2388#true} is VALID [2022-02-21 04:16:30,411 INFO L290 TraceCheckUtils]: 6: Hoare triple {2388#true} test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; {2388#true} is VALID [2022-02-21 04:16:30,412 INFO L290 TraceCheckUtils]: 7: Hoare triple {2388#true} assume 0 != test_~tmp___2~0#1; {2388#true} is VALID [2022-02-21 04:16:30,412 INFO L290 TraceCheckUtils]: 8: Hoare triple {2388#true} assume { :begin_inline_timeShift } true; {2388#true} is VALID [2022-02-21 04:16:30,412 INFO L290 TraceCheckUtils]: 9: Hoare triple {2388#true} assume !(0 != ~pumpRunning~0); {2390#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:30,413 INFO L290 TraceCheckUtils]: 10: Hoare triple {2390#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {2390#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:30,413 INFO L290 TraceCheckUtils]: 11: Hoare triple {2390#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret17#1, isMethaneAlarm_~retValue_acc~6#1;havoc isMethaneAlarm_~retValue_acc~6#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; {2389#false} is VALID [2022-02-21 04:16:30,413 INFO L290 TraceCheckUtils]: 12: Hoare triple {2389#false} isMethaneAlarm_#t~ret17#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~6#1 := isMethaneAlarm_#t~ret17#1;havoc isMethaneAlarm_#t~ret17#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~6#1; {2389#false} is VALID [2022-02-21 04:16:30,413 INFO L290 TraceCheckUtils]: 13: Hoare triple {2389#false} processEnvironment_#t~ret16#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret16#1;havoc processEnvironment_#t~ret16#1; {2389#false} is VALID [2022-02-21 04:16:30,414 INFO L290 TraceCheckUtils]: 14: Hoare triple {2389#false} assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {2389#false} is VALID [2022-02-21 04:16:30,414 INFO L290 TraceCheckUtils]: 15: Hoare triple {2389#false} assume { :end_inline_deactivatePump } true; {2389#false} is VALID [2022-02-21 04:16:30,414 INFO L290 TraceCheckUtils]: 16: Hoare triple {2389#false} assume { :end_inline_processEnvironment } true; {2389#false} is VALID [2022-02-21 04:16:30,414 INFO L290 TraceCheckUtils]: 17: Hoare triple {2389#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; {2389#false} is VALID [2022-02-21 04:16:30,414 INFO L290 TraceCheckUtils]: 18: Hoare triple {2389#false} __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; {2389#false} is VALID [2022-02-21 04:16:30,415 INFO L290 TraceCheckUtils]: 19: Hoare triple {2389#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; {2389#false} is VALID [2022-02-21 04:16:30,415 INFO L290 TraceCheckUtils]: 20: Hoare triple {2389#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {2389#false} is VALID [2022-02-21 04:16:30,415 INFO L290 TraceCheckUtils]: 21: Hoare triple {2389#false} assume { :end_inline_timeShift } true; {2389#false} is VALID [2022-02-21 04:16:30,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:30,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:30,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714824295] [2022-02-21 04:16:30,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714824295] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:30,416 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:30,416 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:16:30,416 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884783477] [2022-02-21 04:16:30,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:30,417 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:30,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:30,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:16:30,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:16:30,418 INFO L87 Difference]: Start difference. First operand 320 states and 434 transitions. cyclomatic complexity: 117 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:30,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:30,687 INFO L93 Difference]: Finished difference Result 328 states and 422 transitions. [2022-02-21 04:16:30,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:16:30,687 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:30,700 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:30,701 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 328 states and 422 transitions. [2022-02-21 04:16:30,708 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2022-02-21 04:16:30,714 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 328 states to 328 states and 422 transitions. [2022-02-21 04:16:30,714 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 328 [2022-02-21 04:16:30,714 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 328 [2022-02-21 04:16:30,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 328 states and 422 transitions. [2022-02-21 04:16:30,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:30,715 INFO L681 BuchiCegarLoop]: Abstraction has 328 states and 422 transitions. [2022-02-21 04:16:30,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states and 422 transitions. [2022-02-21 04:16:30,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2022-02-21 04:16:30,722 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:30,723 INFO L82 GeneralOperation]: Start isEquivalent. First operand 328 states and 422 transitions. Second operand has 328 states, 328 states have (on average 1.2865853658536586) internal successors, (422), 327 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:30,723 INFO L74 IsIncluded]: Start isIncluded. First operand 328 states and 422 transitions. Second operand has 328 states, 328 states have (on average 1.2865853658536586) internal successors, (422), 327 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:30,724 INFO L87 Difference]: Start difference. First operand 328 states and 422 transitions. Second operand has 328 states, 328 states have (on average 1.2865853658536586) internal successors, (422), 327 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:30,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:30,730 INFO L93 Difference]: Finished difference Result 328 states and 422 transitions. [2022-02-21 04:16:30,730 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 422 transitions. [2022-02-21 04:16:30,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:30,730 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:30,731 INFO L74 IsIncluded]: Start isIncluded. First operand has 328 states, 328 states have (on average 1.2865853658536586) internal successors, (422), 327 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 328 states and 422 transitions. [2022-02-21 04:16:30,732 INFO L87 Difference]: Start difference. First operand has 328 states, 328 states have (on average 1.2865853658536586) internal successors, (422), 327 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 328 states and 422 transitions. [2022-02-21 04:16:30,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:30,737 INFO L93 Difference]: Finished difference Result 328 states and 422 transitions. [2022-02-21 04:16:30,737 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 422 transitions. [2022-02-21 04:16:30,738 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:30,738 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:30,738 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:30,738 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:30,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 328 states have (on average 1.2865853658536586) internal successors, (422), 327 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:30,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 422 transitions. [2022-02-21 04:16:30,745 INFO L704 BuchiCegarLoop]: Abstraction has 328 states and 422 transitions. [2022-02-21 04:16:30,745 INFO L587 BuchiCegarLoop]: Abstraction has 328 states and 422 transitions. [2022-02-21 04:16:30,746 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:30,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 328 states and 422 transitions. [2022-02-21 04:16:30,747 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2022-02-21 04:16:30,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:30,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:30,747 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:30,747 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:30,748 INFO L791 eck$LassoCheckResult]: Stem: 2948#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 2929#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 2930#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2934#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2742#L83 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 2743#L1001 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 2770#L977 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2803#L885 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2804#L212-2 [2022-02-21 04:16:30,748 INFO L793 eck$LassoCheckResult]: Loop: 2804#L212-2 assume !false; 2889#L213 assume test_~splverifierCounter~0#1 < 4; 3031#L214 test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 3029#L222 assume !(0 != test_~tmp~0#1); 3027#L222-2 test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 2894#L232 assume !(0 != test_~tmp___0~0#1); 2896#L232-2 test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 2951#L242 assume 0 != test_~tmp___2~0#1; 2892#L248-2 assume { :begin_inline_timeShift } true; 2914#L281 assume !(0 != ~pumpRunning~0); 2915#L281-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 2798#L365 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret15#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; 2799#L339-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 2838#L313-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 2839#L179-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 2841#L184-3 isHighWaterLevel_#t~ret26#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret26#1;havoc isHighWaterLevel_#t~ret26#1; 2836#L467-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2774#L467-11 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 2775#L473-3 processEnvironment__wrappee__highWaterSensor_#t~ret14#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret14#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1; 2843#L317-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2847#L305-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2848#L313-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2879#L339-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2719#L365-1 assume { :end_inline_processEnvironment } true; 2720#L288-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 3038#L139-1 __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; 2721#L896 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 2723#L896-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2922#L298 assume { :end_inline_timeShift } true; 2804#L212-2 [2022-02-21 04:16:30,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:30,748 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:16:30,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:30,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142413540] [2022-02-21 04:16:30,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:30,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:30,758 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:30,768 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:30,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:30,769 INFO L85 PathProgramCache]: Analyzing trace with hash 2142103229, now seen corresponding path program 1 times [2022-02-21 04:16:30,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:30,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269388350] [2022-02-21 04:16:30,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:30,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:30,775 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:30,781 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:30,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:30,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1246447500, now seen corresponding path program 1 times [2022-02-21 04:16:30,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:30,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223428581] [2022-02-21 04:16:30,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:30,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:30,795 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:30,809 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:33,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:33 BoogieIcfgContainer [2022-02-21 04:16:33,334 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:33,337 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:33,337 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:33,337 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:33,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:28" (3/4) ... [2022-02-21 04:16:33,341 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:33,411 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:33,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:33,413 INFO L158 Benchmark]: Toolchain (without parser) took 6540.45ms. Allocated memory was 153.1MB in the beginning and 255.9MB in the end (delta: 102.8MB). Free memory was 118.5MB in the beginning and 185.1MB in the end (delta: -66.6MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:33,413 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 88.1MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:33,413 INFO L158 Benchmark]: CACSL2BoogieTranslator took 535.90ms. Allocated memory is still 153.1MB. Free memory was 118.5MB in the beginning and 115.0MB in the end (delta: 3.5MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:33,414 INFO L158 Benchmark]: Boogie Procedure Inliner took 116.81ms. Allocated memory is still 153.1MB. Free memory was 115.0MB in the beginning and 109.6MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:33,416 INFO L158 Benchmark]: Boogie Preprocessor took 58.06ms. Allocated memory is still 153.1MB. Free memory was 109.6MB in the beginning and 105.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:33,416 INFO L158 Benchmark]: RCFGBuilder took 886.76ms. Allocated memory is still 153.1MB. Free memory was 105.8MB in the beginning and 68.0MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-02-21 04:16:33,416 INFO L158 Benchmark]: BuchiAutomizer took 4860.74ms. Allocated memory was 153.1MB in the beginning and 255.9MB in the end (delta: 102.8MB). Free memory was 68.0MB in the beginning and 188.2MB in the end (delta: -120.2MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. [2022-02-21 04:16:33,417 INFO L158 Benchmark]: Witness Printer took 74.63ms. Allocated memory is still 255.9MB. Free memory was 188.2MB in the beginning and 185.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:33,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 88.1MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 535.90ms. Allocated memory is still 153.1MB. Free memory was 118.5MB in the beginning and 115.0MB in the end (delta: 3.5MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 116.81ms. Allocated memory is still 153.1MB. Free memory was 115.0MB in the beginning and 109.6MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.06ms. Allocated memory is still 153.1MB. Free memory was 109.6MB in the beginning and 105.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 886.76ms. Allocated memory is still 153.1MB. Free memory was 105.8MB in the beginning and 68.0MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 4860.74ms. Allocated memory was 153.1MB in the beginning and 255.9MB in the end (delta: 102.8MB). Free memory was 68.0MB in the beginning and 188.2MB in the end (delta: -120.2MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. * Witness Printer took 74.63ms. Allocated memory is still 255.9MB. Free memory was 188.2MB in the beginning and 185.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 328 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.1s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 259 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 328 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1620 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1620 mSDsluCounter, 2167 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1528 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 639 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 212]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bb4da6=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@313b42e5=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3125cdb6=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@389e63b4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@729f582e=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6dc69e59=0, \result=0, retValue_acc=0, tmp=0, retValue_acc=1, retValue_acc=1, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55672bb6=0, tmp=1, retValue_acc=0, tmp=1, tmp___2=29, methAndRunningLastTime=0, tmp=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c6b6453=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1762a3ac=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp___0=0, retValue_acc=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24d92324=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46dfcbaf=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 212]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L273] int pumpRunning = 0; [L274] int systemActive = 1; [L681] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L879] int methAndRunningLastTime ; [L918] int cleanupTimeShifts = 4; [L992] int retValue_acc ; [L993] int tmp ; [L997] FCALL select_helpers() [L998] FCALL select_features() [L999] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L999] RET, EXPR valid_product() [L999] tmp = valid_product() [L1001] COND TRUE \read(tmp) [L1003] FCALL setup() [L1004] CALL runTest() [L985] CALL __utac_acc__Specification2_spec__1() [L884] methAndRunningLastTime = 0 [L985] RET __utac_acc__Specification2_spec__1() [L986] CALL test() [L203] int splverifierCounter ; [L204] int tmp ; [L205] int tmp___0 ; [L206] int tmp___1 ; [L207] int tmp___2 ; [L210] splverifierCounter = 0 Loop: [L212] COND TRUE 1 [L214] COND TRUE splverifierCounter < 4 [L220] tmp = __VERIFIER_nondet_int() [L222] COND FALSE !(\read(tmp)) [L230] tmp___0 = __VERIFIER_nondet_int() [L232] COND FALSE !(\read(tmp___0)) [L240] tmp___2 = __VERIFIER_nondet_int() [L242] COND TRUE \read(tmp___2) [L257] CALL timeShift() [L281] COND FALSE !(\read(pumpRunning)) [L288] COND TRUE \read(systemActive) [L290] CALL processEnvironment() [L362] int tmp ; [L365] COND FALSE !(\read(pumpRunning)) [L380] CALL processEnvironment__wrappee__lowWaterSensor() [L336] int tmp ; [L339] COND FALSE !(\read(pumpRunning)) [L354] CALL processEnvironment__wrappee__highWaterSensor() [L310] int tmp ; [L313] COND TRUE ! pumpRunning [L315] CALL, EXPR isHighWaterLevel() [L459] int retValue_acc ; [L460] int tmp ; [L461] int tmp___0 ; [L465] CALL, EXPR isHighWaterSensorDry() [L176] int retValue_acc ; [L179] COND TRUE waterLevel < 2 [L180] retValue_acc = 1 [L181] return (retValue_acc); [L465] RET, EXPR isHighWaterSensorDry() [L465] tmp = isHighWaterSensorDry() [L467] COND TRUE \read(tmp) [L468] tmp___0 = 0 [L472] retValue_acc = tmp___0 [L473] return (retValue_acc); [L315] RET, EXPR isHighWaterLevel() [L315] tmp = isHighWaterLevel() [L317] COND FALSE !(\read(tmp)) [L323] FCALL processEnvironment__wrappee__base() [L354] RET processEnvironment__wrappee__highWaterSensor() [L380] RET processEnvironment__wrappee__lowWaterSensor() [L290] RET processEnvironment() [L296] CALL __utac_acc__Specification2_spec__2() [L889] int tmp ; [L890] int tmp___0 ; [L894] CALL, EXPR isMethaneLevelCritical() [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L894] RET, EXPR isMethaneLevelCritical() [L894] tmp = isMethaneLevelCritical() [L896] COND FALSE !(\read(tmp)) [L912] methAndRunningLastTime = 0 [L296] RET __utac_acc__Specification2_spec__2() [L257] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:33,476 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)