./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product56.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_spec4_product56.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 03daf3415808298ae6016bdc33e04662b3dd63f1cba0029f4033bbf040a042d2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:05,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:05,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:05,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:05,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:05,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:05,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:05,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:05,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:05,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:05,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:05,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:05,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:05,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:05,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:05,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:05,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:05,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:05,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:05,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:05,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:05,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:05,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:05,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:05,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:05,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:05,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:05,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:05,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:05,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:05,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:05,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:05,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:05,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:05,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:05,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:05,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:05,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:05,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:05,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:05,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:05,549 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:05,577 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:05,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:05,585 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:05,585 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:05,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:05,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:05,587 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:05,587 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:05,587 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:05,587 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:05,588 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:05,588 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:05,588 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:05,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:05,589 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:05,589 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:05,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:05,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:05,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:05,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:05,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:05,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:05,590 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:05,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:05,590 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:05,590 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:05,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:05,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:05,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:05,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:05,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:05,592 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:05,592 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03daf3415808298ae6016bdc33e04662b3dd63f1cba0029f4033bbf040a042d2 [2022-02-21 04:18:05,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:05,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:05,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:05,810 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:05,811 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:05,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c [2022-02-21 04:18:05,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c861bcaf/edb5e8e035a441f38688e60eb1d500d6/FLAG64368615c [2022-02-21 04:18:06,235 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:06,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c [2022-02-21 04:18:06,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c861bcaf/edb5e8e035a441f38688e60eb1d500d6/FLAG64368615c [2022-02-21 04:18:06,646 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c861bcaf/edb5e8e035a441f38688e60eb1d500d6 [2022-02-21 04:18:06,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:06,652 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:06,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:06,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:06,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:06,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@100e7a6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:06, skipping insertion in model container [2022-02-21 04:18:06,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:06" (1/1) ... [2022-02-21 04:18:06,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:06,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:07,069 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_spec4_product56.cil.c[17338,17351] [2022-02-21 04:18:07,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:07,103 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:07,199 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_spec4_product56.cil.c[17338,17351] [2022-02-21 04:18:07,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:07,228 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:07,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:07 WrapperNode [2022-02-21 04:18:07,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:07,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:07,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:07,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:07,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:07" (1/1) ... [2022-02-21 04:18:07,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:07" (1/1) ... [2022-02-21 04:18:07,326 INFO L137 Inliner]: procedures = 58, calls = 161, calls flagged for inlining = 58, calls inlined = 140, statements flattened = 1011 [2022-02-21 04:18:07,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:07,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:07,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:07,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:07,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:07" (1/1) ... [2022-02-21 04:18:07,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:07" (1/1) ... [2022-02-21 04:18:07,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:07" (1/1) ... [2022-02-21 04:18:07,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:07" (1/1) ... [2022-02-21 04:18:07,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:07" (1/1) ... [2022-02-21 04:18:07,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:07" (1/1) ... [2022-02-21 04:18:07,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:07" (1/1) ... [2022-02-21 04:18:07,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:07,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:07,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:07,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:07,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:07" (1/1) ... [2022-02-21 04:18:07,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:07,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:07,452 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 04:18:07,462 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 04:18:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:07,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:07,537 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:07,539 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:08,081 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:08,096 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:08,096 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:08,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:08 BoogieIcfgContainer [2022-02-21 04:18:08,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:08,100 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:08,100 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:08,102 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:08,103 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:08,103 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:06" (1/3) ... [2022-02-21 04:18:08,104 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69c9ac65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:08, skipping insertion in model container [2022-02-21 04:18:08,104 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:08,105 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:07" (2/3) ... [2022-02-21 04:18:08,105 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69c9ac65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:08, skipping insertion in model container [2022-02-21 04:18:08,105 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:08,105 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:08" (3/3) ... [2022-02-21 04:18:08,107 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product56.cil.c [2022-02-21 04:18:08,145 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:08,145 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:08,145 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:08,145 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:08,145 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:08,145 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:08,146 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:08,146 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:08,170 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 275 states, 274 states have (on average 1.3686131386861313) internal successors, (375), 274 states have internal predecessors, (375), 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 04:18:08,280 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 181 [2022-02-21 04:18:08,280 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:08,281 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:08,285 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:08,285 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:08,285 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:08,288 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 275 states, 274 states have (on average 1.3686131386861313) internal successors, (375), 274 states have internal predecessors, (375), 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 04:18:08,330 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 181 [2022-02-21 04:18:08,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:08,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:08,332 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:08,332 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:08,340 INFO L791 eck$LassoCheckResult]: Stem: 263#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 182#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 114#L1008true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 36#L1001true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 155#L1016true main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 123#L860true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 128#L834true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 167#L688-2true [2022-02-21 04:18:08,340 INFO L793 eck$LassoCheckResult]: Loop: 167#L688-2true assume !false; 226#L689true assume test_~splverifierCounter~0#1 < 4; 193#L690true test_~tmp~8#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 235#L698true assume !(0 != test_~tmp~8#1); 130#L698-2true test_~tmp___0~2#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 14#L708true assume !(0 != test_~tmp___0~2#1); 268#L708-2true test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 104#L718true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 231#L726true assume !(0 != test_~tmp___1~0#1); 219#L726-2true assume { :begin_inline_timeShift } true; 78#L70true assume !(0 != ~pumpRunning~0); 170#L70-2true assume !(0 != ~systemActive~0); 100#L77-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret45#1, __utac_acc__Specification4_spec__1_#t~ret46#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 129#L958true __utac_acc__Specification4_spec__1_#t~ret45#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret45#1;havoc __utac_acc__Specification4_spec__1_#t~ret45#1; 65#L757true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); 145#L757-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 60#L87true assume { :end_inline_timeShift } true; 167#L688-2true [2022-02-21 04:18:08,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:08,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:18:08,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:08,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998820708] [2022-02-21 04:18:08,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:08,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:08,560 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:08,640 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:08,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:08,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1676994033, now seen corresponding path program 1 times [2022-02-21 04:18:08,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:08,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943927590] [2022-02-21 04:18:08,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:08,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:08,679 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:08,684 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:08,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:08,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1686291659, now seen corresponding path program 1 times [2022-02-21 04:18:08,685 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:08,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592991695] [2022-02-21 04:18:08,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:08,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:08,840 INFO L290 TraceCheckUtils]: 0: Hoare triple {283#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {285#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:08,840 INFO L290 TraceCheckUtils]: 1: Hoare triple {285#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; {285#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:08,841 INFO L290 TraceCheckUtils]: 2: Hoare triple {285#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {285#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:08,841 INFO L290 TraceCheckUtils]: 3: Hoare triple {285#(= 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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; {286#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:08,842 INFO L290 TraceCheckUtils]: 4: Hoare triple {286#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret47#1;havoc main_#t~ret47#1; {287#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} is VALID [2022-02-21 04:18:08,842 INFO L290 TraceCheckUtils]: 5: Hoare triple {287#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; {288#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,843 INFO L290 TraceCheckUtils]: 6: Hoare triple {288#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {288#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,843 INFO L290 TraceCheckUtils]: 7: Hoare triple {288#(not (= 0 ~systemActive~0))} assume !false; {288#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,844 INFO L290 TraceCheckUtils]: 8: Hoare triple {288#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {288#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,845 INFO L290 TraceCheckUtils]: 9: Hoare triple {288#(not (= 0 ~systemActive~0))} test_~tmp~8#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; {288#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,845 INFO L290 TraceCheckUtils]: 10: Hoare triple {288#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~8#1); {288#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,846 INFO L290 TraceCheckUtils]: 11: Hoare triple {288#(not (= 0 ~systemActive~0))} test_~tmp___0~2#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; {288#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,846 INFO L290 TraceCheckUtils]: 12: Hoare triple {288#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~2#1); {288#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,847 INFO L290 TraceCheckUtils]: 13: Hoare triple {288#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; {288#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,847 INFO L290 TraceCheckUtils]: 14: Hoare triple {288#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; {288#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,848 INFO L290 TraceCheckUtils]: 15: Hoare triple {288#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___1~0#1); {288#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,848 INFO L290 TraceCheckUtils]: 16: Hoare triple {288#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {288#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,849 INFO L290 TraceCheckUtils]: 17: Hoare triple {288#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {288#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:08,850 INFO L290 TraceCheckUtils]: 18: Hoare triple {288#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {284#false} is VALID [2022-02-21 04:18:08,850 INFO L290 TraceCheckUtils]: 19: Hoare triple {284#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret45#1, __utac_acc__Specification4_spec__1_#t~ret46#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; {284#false} is VALID [2022-02-21 04:18:08,850 INFO L290 TraceCheckUtils]: 20: Hoare triple {284#false} __utac_acc__Specification4_spec__1_#t~ret45#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret45#1;havoc __utac_acc__Specification4_spec__1_#t~ret45#1; {284#false} is VALID [2022-02-21 04:18:08,850 INFO L290 TraceCheckUtils]: 21: Hoare triple {284#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); {284#false} is VALID [2022-02-21 04:18:08,851 INFO L290 TraceCheckUtils]: 22: Hoare triple {284#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {284#false} is VALID [2022-02-21 04:18:08,851 INFO L290 TraceCheckUtils]: 23: Hoare triple {284#false} assume { :end_inline_timeShift } true; {284#false} is VALID [2022-02-21 04:18:08,852 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 04:18:08,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:08,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592991695] [2022-02-21 04:18:08,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592991695] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:08,854 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:08,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:08,854 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905117867] [2022-02-21 04:18:08,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:08,977 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:09,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:09,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:09,005 INFO L87 Difference]: Start difference. First operand has 275 states, 274 states have (on average 1.3686131386861313) internal successors, (375), 274 states have internal predecessors, (375), 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 04:18:10,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:10,474 INFO L93 Difference]: Finished difference Result 864 states and 1151 transitions. [2022-02-21 04:18:10,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:10,475 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 04:18:10,497 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 04:18:10,500 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 864 states and 1151 transitions. [2022-02-21 04:18:10,531 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 568 [2022-02-21 04:18:10,557 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 864 states to 824 states and 1111 transitions. [2022-02-21 04:18:10,558 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 824 [2022-02-21 04:18:10,559 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 824 [2022-02-21 04:18:10,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 824 states and 1111 transitions. [2022-02-21 04:18:10,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:10,562 INFO L681 BuchiCegarLoop]: Abstraction has 824 states and 1111 transitions. [2022-02-21 04:18:10,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states and 1111 transitions. [2022-02-21 04:18:10,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 314. [2022-02-21 04:18:10,591 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:10,604 INFO L82 GeneralOperation]: Start isEquivalent. First operand 824 states and 1111 transitions. Second operand has 314 states, 314 states have (on average 1.3439490445859872) internal successors, (422), 313 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 04:18:10,605 INFO L74 IsIncluded]: Start isIncluded. First operand 824 states and 1111 transitions. Second operand has 314 states, 314 states have (on average 1.3439490445859872) internal successors, (422), 313 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 04:18:10,606 INFO L87 Difference]: Start difference. First operand 824 states and 1111 transitions. Second operand has 314 states, 314 states have (on average 1.3439490445859872) internal successors, (422), 313 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 04:18:10,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:10,633 INFO L93 Difference]: Finished difference Result 824 states and 1111 transitions. [2022-02-21 04:18:10,633 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1111 transitions. [2022-02-21 04:18:10,637 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:10,637 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:10,638 INFO L74 IsIncluded]: Start isIncluded. First operand has 314 states, 314 states have (on average 1.3439490445859872) internal successors, (422), 313 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 824 states and 1111 transitions. [2022-02-21 04:18:10,638 INFO L87 Difference]: Start difference. First operand has 314 states, 314 states have (on average 1.3439490445859872) internal successors, (422), 313 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 824 states and 1111 transitions. [2022-02-21 04:18:10,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:10,661 INFO L93 Difference]: Finished difference Result 824 states and 1111 transitions. [2022-02-21 04:18:10,661 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1111 transitions. [2022-02-21 04:18:10,662 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:10,662 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:10,662 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:10,662 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:10,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 314 states have (on average 1.3439490445859872) internal successors, (422), 313 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 04:18:10,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 422 transitions. [2022-02-21 04:18:10,670 INFO L704 BuchiCegarLoop]: Abstraction has 314 states and 422 transitions. [2022-02-21 04:18:10,670 INFO L587 BuchiCegarLoop]: Abstraction has 314 states and 422 transitions. [2022-02-21 04:18:10,670 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:10,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 314 states and 422 transitions. [2022-02-21 04:18:10,672 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 217 [2022-02-21 04:18:10,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:10,672 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:10,673 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:10,673 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] [2022-02-21 04:18:10,673 INFO L791 eck$LassoCheckResult]: Stem: 1418#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1394#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1330#L1008 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1222#L1001 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 1223#L1016 main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 1336#L860 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1337#L834 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1263#L688-2 [2022-02-21 04:18:10,673 INFO L793 eck$LassoCheckResult]: Loop: 1263#L688-2 assume !false; 1377#L689 assume test_~splverifierCounter~0#1 < 4; 1399#L690 test_~tmp~8#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 1400#L698 assume !(0 != test_~tmp~8#1); 1344#L698-2 test_~tmp___0~2#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 1178#L708 assume !(0 != test_~tmp___0~2#1); 1180#L708-2 test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 1315#L718 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 1316#L726 assume !(0 != test_~tmp___1~0#1); 1406#L726-2 assume { :begin_inline_timeShift } true; 1291#L70 assume !(0 != ~pumpRunning~0); 1203#L70-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1321#L154 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret7#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 1322#L926 isMethaneAlarm_#t~ret7#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret7#1;havoc isMethaneAlarm_#t~ret7#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; 1298#L198 processEnvironment_#t~ret6#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret6#1;havoc processEnvironment_#t~ret6#1; 1299#L158 assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1370#L188-1 assume { :end_inline_deactivatePump } true; 1398#L154-1 assume { :end_inline_processEnvironment } true; 1313#L77-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret45#1, __utac_acc__Specification4_spec__1_#t~ret46#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 1314#L958 __utac_acc__Specification4_spec__1_#t~ret45#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret45#1;havoc __utac_acc__Specification4_spec__1_#t~ret45#1; 1271#L757 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); 1272#L757-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1262#L87 assume { :end_inline_timeShift } true; 1263#L688-2 [2022-02-21 04:18:10,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:10,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:18:10,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:10,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639131156] [2022-02-21 04:18:10,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:10,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:10,691 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:10,703 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:10,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:10,704 INFO L85 PathProgramCache]: Analyzing trace with hash 198543928, now seen corresponding path program 1 times [2022-02-21 04:18:10,704 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:10,704 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242966156] [2022-02-21 04:18:10,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:10,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:10,717 INFO L290 TraceCheckUtils]: 0: Hoare triple {3124#true} assume !false; {3124#true} is VALID [2022-02-21 04:18:10,718 INFO L290 TraceCheckUtils]: 1: Hoare triple {3124#true} assume test_~splverifierCounter~0#1 < 4; {3124#true} is VALID [2022-02-21 04:18:10,718 INFO L290 TraceCheckUtils]: 2: Hoare triple {3124#true} test_~tmp~8#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; {3124#true} is VALID [2022-02-21 04:18:10,718 INFO L290 TraceCheckUtils]: 3: Hoare triple {3124#true} assume !(0 != test_~tmp~8#1); {3124#true} is VALID [2022-02-21 04:18:10,718 INFO L290 TraceCheckUtils]: 4: Hoare triple {3124#true} test_~tmp___0~2#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; {3124#true} is VALID [2022-02-21 04:18:10,718 INFO L290 TraceCheckUtils]: 5: Hoare triple {3124#true} assume !(0 != test_~tmp___0~2#1); {3124#true} is VALID [2022-02-21 04:18:10,719 INFO L290 TraceCheckUtils]: 6: Hoare triple {3124#true} test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; {3124#true} is VALID [2022-02-21 04:18:10,719 INFO L290 TraceCheckUtils]: 7: Hoare triple {3124#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; {3124#true} is VALID [2022-02-21 04:18:10,719 INFO L290 TraceCheckUtils]: 8: Hoare triple {3124#true} assume !(0 != test_~tmp___1~0#1); {3124#true} is VALID [2022-02-21 04:18:10,719 INFO L290 TraceCheckUtils]: 9: Hoare triple {3124#true} assume { :begin_inline_timeShift } true; {3124#true} is VALID [2022-02-21 04:18:10,720 INFO L290 TraceCheckUtils]: 10: Hoare triple {3124#true} assume !(0 != ~pumpRunning~0); {3126#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:10,720 INFO L290 TraceCheckUtils]: 11: Hoare triple {3126#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {3126#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:10,721 INFO L290 TraceCheckUtils]: 12: Hoare triple {3126#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret7#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; {3125#false} is VALID [2022-02-21 04:18:10,721 INFO L290 TraceCheckUtils]: 13: Hoare triple {3125#false} isMethaneAlarm_#t~ret7#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret7#1;havoc isMethaneAlarm_#t~ret7#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; {3125#false} is VALID [2022-02-21 04:18:10,721 INFO L290 TraceCheckUtils]: 14: Hoare triple {3125#false} processEnvironment_#t~ret6#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret6#1;havoc processEnvironment_#t~ret6#1; {3125#false} is VALID [2022-02-21 04:18:10,721 INFO L290 TraceCheckUtils]: 15: Hoare triple {3125#false} assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {3125#false} is VALID [2022-02-21 04:18:10,721 INFO L290 TraceCheckUtils]: 16: Hoare triple {3125#false} assume { :end_inline_deactivatePump } true; {3125#false} is VALID [2022-02-21 04:18:10,721 INFO L290 TraceCheckUtils]: 17: Hoare triple {3125#false} assume { :end_inline_processEnvironment } true; {3125#false} is VALID [2022-02-21 04:18:10,722 INFO L290 TraceCheckUtils]: 18: Hoare triple {3125#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret45#1, __utac_acc__Specification4_spec__1_#t~ret46#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; {3125#false} is VALID [2022-02-21 04:18:10,722 INFO L290 TraceCheckUtils]: 19: Hoare triple {3125#false} __utac_acc__Specification4_spec__1_#t~ret45#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret45#1;havoc __utac_acc__Specification4_spec__1_#t~ret45#1; {3125#false} is VALID [2022-02-21 04:18:10,722 INFO L290 TraceCheckUtils]: 20: Hoare triple {3125#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); {3125#false} is VALID [2022-02-21 04:18:10,722 INFO L290 TraceCheckUtils]: 21: Hoare triple {3125#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {3125#false} is VALID [2022-02-21 04:18:10,722 INFO L290 TraceCheckUtils]: 22: Hoare triple {3125#false} assume { :end_inline_timeShift } true; {3125#false} is VALID [2022-02-21 04:18:10,723 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 04:18:10,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:10,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242966156] [2022-02-21 04:18:10,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242966156] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:10,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:10,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:10,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880262692] [2022-02-21 04:18:10,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:10,724 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:10,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:10,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:10,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:10,725 INFO L87 Difference]: Start difference. First operand 314 states and 422 transitions. cyclomatic complexity: 111 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:11,010 INFO L93 Difference]: Finished difference Result 320 states and 405 transitions. [2022-02-21 04:18:11,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:11,010 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,023 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:11,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 405 transitions. [2022-02-21 04:18:11,028 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 227 [2022-02-21 04:18:11,033 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 320 states and 405 transitions. [2022-02-21 04:18:11,033 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 320 [2022-02-21 04:18:11,033 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2022-02-21 04:18:11,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 320 states and 405 transitions. [2022-02-21 04:18:11,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:11,034 INFO L681 BuchiCegarLoop]: Abstraction has 320 states and 405 transitions. [2022-02-21 04:18:11,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states and 405 transitions. [2022-02-21 04:18:11,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2022-02-21 04:18:11,049 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:11,050 INFO L82 GeneralOperation]: Start isEquivalent. First operand 320 states and 405 transitions. Second operand has 320 states, 320 states have (on average 1.265625) internal successors, (405), 319 states have internal predecessors, (405), 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 04:18:11,051 INFO L74 IsIncluded]: Start isIncluded. First operand 320 states and 405 transitions. Second operand has 320 states, 320 states have (on average 1.265625) internal successors, (405), 319 states have internal predecessors, (405), 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 04:18:11,051 INFO L87 Difference]: Start difference. First operand 320 states and 405 transitions. Second operand has 320 states, 320 states have (on average 1.265625) internal successors, (405), 319 states have internal predecessors, (405), 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 04:18:11,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:11,056 INFO L93 Difference]: Finished difference Result 320 states and 405 transitions. [2022-02-21 04:18:11,056 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 405 transitions. [2022-02-21 04:18:11,056 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:11,056 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:11,057 INFO L74 IsIncluded]: Start isIncluded. First operand has 320 states, 320 states have (on average 1.265625) internal successors, (405), 319 states have internal predecessors, (405), 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 320 states and 405 transitions. [2022-02-21 04:18:11,058 INFO L87 Difference]: Start difference. First operand has 320 states, 320 states have (on average 1.265625) internal successors, (405), 319 states have internal predecessors, (405), 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 320 states and 405 transitions. [2022-02-21 04:18:11,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:11,062 INFO L93 Difference]: Finished difference Result 320 states and 405 transitions. [2022-02-21 04:18:11,062 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 405 transitions. [2022-02-21 04:18:11,062 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:11,063 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:11,063 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:11,063 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:11,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 320 states have (on average 1.265625) internal successors, (405), 319 states have internal predecessors, (405), 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 04:18:11,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 405 transitions. [2022-02-21 04:18:11,067 INFO L704 BuchiCegarLoop]: Abstraction has 320 states and 405 transitions. [2022-02-21 04:18:11,067 INFO L587 BuchiCegarLoop]: Abstraction has 320 states and 405 transitions. [2022-02-21 04:18:11,068 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:11,070 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 320 states and 405 transitions. [2022-02-21 04:18:11,071 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 227 [2022-02-21 04:18:11,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:11,071 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:11,072 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:11,073 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, 1] [2022-02-21 04:18:11,073 INFO L791 eck$LassoCheckResult]: Stem: 3675#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 3637#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 3577#L1008 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3493#L1001 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 3494#L1016 main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 3581#L860 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 3582#L834 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3521#L688-2 [2022-02-21 04:18:11,074 INFO L793 eck$LassoCheckResult]: Loop: 3521#L688-2 assume !false; 3663#L689 assume test_~splverifierCounter~0#1 < 4; 3645#L690 test_~tmp~8#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 3646#L698 assume !(0 != test_~tmp~8#1); 3742#L698-2 test_~tmp___0~2#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 3459#L708 assume !(0 != test_~tmp___0~2#1); 3461#L708-2 test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 3741#L718 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 3740#L726 assume !(0 != test_~tmp___1~0#1); 3654#L726-2 assume { :begin_inline_timeShift } true; 3542#L70 assume !(0 != ~pumpRunning~0); 3543#L70-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 3569#L154 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret5#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1; 3570#L128-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 3485#L102-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; 3481#L966-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; 3482#L971-3 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 3503#L256-9 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; 3497#L256-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 3498#L262-3 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 3621#L106-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3600#L94-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3601#L102-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3642#L128-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 3643#L154-1 assume { :end_inline_processEnvironment } true; 3562#L77-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret45#1, __utac_acc__Specification4_spec__1_#t~ret46#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 3563#L958 __utac_acc__Specification4_spec__1_#t~ret45#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret45#1;havoc __utac_acc__Specification4_spec__1_#t~ret45#1; 3527#L757 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); 3528#L757-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 3520#L87 assume { :end_inline_timeShift } true; 3521#L688-2 [2022-02-21 04:18:11,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:11,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:18:11,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:11,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605827894] [2022-02-21 04:18:11,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:11,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,104 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:11,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,117 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:11,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:11,119 INFO L85 PathProgramCache]: Analyzing trace with hash -470767540, now seen corresponding path program 1 times [2022-02-21 04:18:11,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:11,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580620303] [2022-02-21 04:18:11,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:11,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:11,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,134 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,150 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:11,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:11,152 INFO L85 PathProgramCache]: Analyzing trace with hash -73576688, now seen corresponding path program 1 times [2022-02-21 04:18:11,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:11,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465510771] [2022-02-21 04:18:11,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:11,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,171 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,182 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:14,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:14 BoogieIcfgContainer [2022-02-21 04:18:14,140 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:14,140 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:14,140 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:14,141 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:14,141 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:08" (3/4) ... [2022-02-21 04:18:14,143 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:14,174 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:14,174 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:14,175 INFO L158 Benchmark]: Toolchain (without parser) took 7522.71ms. Allocated memory was 96.5MB in the beginning and 180.4MB in the end (delta: 83.9MB). Free memory was 53.4MB in the beginning and 64.8MB in the end (delta: -11.5MB). Peak memory consumption was 74.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:14,175 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:14,175 INFO L158 Benchmark]: CACSL2BoogieTranslator took 574.63ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 53.1MB in the beginning and 86.7MB in the end (delta: -33.6MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2022-02-21 04:18:14,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.73ms. Allocated memory is still 123.7MB. Free memory was 86.7MB in the beginning and 80.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:14,176 INFO L158 Benchmark]: Boogie Preprocessor took 57.75ms. Allocated memory is still 123.7MB. Free memory was 80.5MB in the beginning and 77.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:14,176 INFO L158 Benchmark]: RCFGBuilder took 713.11ms. Allocated memory is still 123.7MB. Free memory was 77.0MB in the beginning and 62.6MB in the end (delta: 14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-21 04:18:14,177 INFO L158 Benchmark]: BuchiAutomizer took 6040.05ms. Allocated memory was 123.7MB in the beginning and 180.4MB in the end (delta: 56.6MB). Free memory was 62.6MB in the beginning and 67.9MB in the end (delta: -5.4MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:14,177 INFO L158 Benchmark]: Witness Printer took 33.84ms. Allocated memory is still 180.4MB. Free memory was 67.9MB in the beginning and 64.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:14,178 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 574.63ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 53.1MB in the beginning and 86.7MB in the end (delta: -33.6MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.73ms. Allocated memory is still 123.7MB. Free memory was 86.7MB in the beginning and 80.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.75ms. Allocated memory is still 123.7MB. Free memory was 80.5MB in the beginning and 77.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 713.11ms. Allocated memory is still 123.7MB. Free memory was 77.0MB in the beginning and 62.6MB in the end (delta: 14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 6040.05ms. Allocated memory was 123.7MB in the beginning and 180.4MB in the end (delta: 56.6MB). Free memory was 62.6MB in the beginning and 67.9MB in the end (delta: -5.4MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. * Witness Printer took 33.84ms. Allocated memory is still 180.4MB. Free memory was 67.9MB in the beginning and 64.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 320 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.7s. Construction of modules took 0.1s. Büchi inclusion checks took 1.7s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 510 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 320 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2282 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2282 mSDsluCounter, 2723 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2080 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 643 mSDtfsCounter, 91 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: 688]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cf9c75b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54e8410a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f813181=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d6b3e4b=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@add3cc9=0, NULL=1, tmp___0=0, retValue_acc=1, retValue_acc=1, methaneLevelCritical=0, tmp=1, retValue_acc=1, \result=1, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@765cb4cc=0, retValue_acc=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f851256=0, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3255e229=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7dd19daf=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e6ac2b7=0, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@735e3177=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, \result=0, tmp=0, tmp=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 688]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L62] int pumpRunning = 0; [L63] int systemActive = 1; [L478] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L775] int cleanupTimeShifts = 4; [L883] int waterLevel = 1; [L884] int methaneLevelCritical = 0; [L851] int retValue_acc ; [L852] int tmp ; [L856] FCALL select_helpers() [L857] FCALL select_features() [L858] CALL, EXPR valid_product() [L1012] int retValue_acc ; [L1015] retValue_acc = 1 [L1016] return (retValue_acc); [L858] RET, EXPR valid_product() [L858] tmp = valid_product() [L860] COND TRUE \read(tmp) [L862] FCALL setup() [L863] CALL runTest() [L842] CALL test() [L679] int splverifierCounter ; [L680] int tmp ; [L681] int tmp___0 ; [L682] int tmp___1 ; [L683] int tmp___2 ; [L686] splverifierCounter = 0 Loop: [L688] COND TRUE 1 [L690] COND TRUE splverifierCounter < 4 [L696] tmp = __VERIFIER_nondet_int() [L698] COND FALSE !(\read(tmp)) [L706] tmp___0 = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp___0)) [L716] tmp___2 = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp___2)) [L724] tmp___1 = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp___1)) [L735] CALL timeShift() [L70] COND FALSE !(\read(pumpRunning)) [L77] COND TRUE \read(systemActive) [L79] CALL processEnvironment() [L151] int tmp ; [L154] COND FALSE !(\read(pumpRunning)) [L169] CALL processEnvironment__wrappee__lowWaterSensor() [L125] int tmp ; [L128] COND FALSE !(\read(pumpRunning)) [L143] CALL processEnvironment__wrappee__highWaterSensor() [L99] int tmp ; [L102] COND TRUE ! pumpRunning [L104] CALL, EXPR isHighWaterLevel() [L248] int retValue_acc ; [L249] int tmp ; [L250] int tmp___0 ; [L254] CALL, EXPR isHighWaterSensorDry() [L963] int retValue_acc ; [L966] COND TRUE waterLevel < 2 [L967] retValue_acc = 1 [L968] return (retValue_acc); [L254] RET, EXPR isHighWaterSensorDry() [L254] tmp = isHighWaterSensorDry() [L256] COND TRUE \read(tmp) [L257] tmp___0 = 0 [L261] retValue_acc = tmp___0 [L262] return (retValue_acc); [L104] RET, EXPR isHighWaterLevel() [L104] tmp = isHighWaterLevel() [L106] COND FALSE !(\read(tmp)) [L112] FCALL processEnvironment__wrappee__base() [L143] RET processEnvironment__wrappee__highWaterSensor() [L169] RET processEnvironment__wrappee__lowWaterSensor() [L79] RET processEnvironment() [L85] CALL __utac_acc__Specification4_spec__1() [L750] int tmp ; [L751] int tmp___0 ; [L755] CALL, EXPR getWaterLevel() [L954] int retValue_acc ; [L957] retValue_acc = waterLevel [L958] return (retValue_acc); [L755] RET, EXPR getWaterLevel() [L755] tmp = getWaterLevel() [L757] COND FALSE !(tmp == 0) [L85] RET __utac_acc__Specification4_spec__1() [L735] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:14,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)