./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product49.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_spec3_product49.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 837951bb35a66379a80a07f15314d2b43ee3f47728002b8b604897c09f36abe4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:11,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:11,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:11,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:11,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:11,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:11,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:11,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:11,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:11,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:11,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:11,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:11,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:11,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:11,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:11,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:11,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:11,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:11,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:11,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:11,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:11,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:11,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:11,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:11,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:11,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:11,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:11,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:11,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:11,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:11,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:11,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:11,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:11,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:11,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:11,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:11,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:11,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:11,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:11,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:11,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:11,362 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:11,391 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:11,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:11,392 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:11,392 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:11,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:11,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:11,394 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:11,394 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:11,394 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:11,394 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:11,394 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:11,395 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:11,395 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:11,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:11,395 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:11,395 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:11,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:11,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:11,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:11,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:11,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:11,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:11,397 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:11,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:11,397 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:11,397 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:11,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:11,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:11,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:11,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:11,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:11,399 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:11,399 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 837951bb35a66379a80a07f15314d2b43ee3f47728002b8b604897c09f36abe4 [2022-02-21 04:17:11,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:11,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:11,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:11,667 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:11,667 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:11,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2022-02-21 04:17:11,745 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79af5992f/ab013ecb6d6d4e46b482a4fa67263ee6/FLAG2800659c6 [2022-02-21 04:17:12,187 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:12,188 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2022-02-21 04:17:12,207 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79af5992f/ab013ecb6d6d4e46b482a4fa67263ee6/FLAG2800659c6 [2022-02-21 04:17:12,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79af5992f/ab013ecb6d6d4e46b482a4fa67263ee6 [2022-02-21 04:17:12,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:12,717 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:12,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:12,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:12,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:12,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:12" (1/1) ... [2022-02-21 04:17:12,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e8b505d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:12, skipping insertion in model container [2022-02-21 04:17:12,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:12" (1/1) ... [2022-02-21 04:17:12,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:12,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:13,069 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_spec3_product49.cil.c[18588,18601] [2022-02-21 04:17:13,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:13,078 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:13,165 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_spec3_product49.cil.c[18588,18601] [2022-02-21 04:17:13,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:13,198 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:13,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:13 WrapperNode [2022-02-21 04:17:13,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:13,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:13,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:13,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:13,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:13" (1/1) ... [2022-02-21 04:17:13,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:13" (1/1) ... [2022-02-21 04:17:13,283 INFO L137 Inliner]: procedures = 55, calls = 155, calls flagged for inlining = 52, calls inlined = 80, statements flattened = 632 [2022-02-21 04:17:13,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:13,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:13,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:13,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:13,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:13" (1/1) ... [2022-02-21 04:17:13,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:13" (1/1) ... [2022-02-21 04:17:13,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:13" (1/1) ... [2022-02-21 04:17:13,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:13" (1/1) ... [2022-02-21 04:17:13,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:13" (1/1) ... [2022-02-21 04:17:13,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:13" (1/1) ... [2022-02-21 04:17:13,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:13" (1/1) ... [2022-02-21 04:17:13,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:13,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:13,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:13,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:13,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:13" (1/1) ... [2022-02-21 04:17:13,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:13,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:13,367 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 04:17:13,369 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 04:17:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:13,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:13,459 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:13,460 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:13,964 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:13,972 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:13,975 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:13,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:13 BoogieIcfgContainer [2022-02-21 04:17:13,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:13,978 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:13,978 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:13,981 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:13,982 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:13,982 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:12" (1/3) ... [2022-02-21 04:17:13,983 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34396704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:13, skipping insertion in model container [2022-02-21 04:17:13,984 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:13,984 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:13" (2/3) ... [2022-02-21 04:17:13,984 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34396704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:13, skipping insertion in model container [2022-02-21 04:17:13,985 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:13,985 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:13" (3/3) ... [2022-02-21 04:17:13,986 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product49.cil.c [2022-02-21 04:17:14,047 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:14,047 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:14,048 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:14,048 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:14,048 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:14,048 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:14,048 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:14,048 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:14,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 168 states, 167 states have (on average 1.3832335329341316) internal successors, (231), 167 states have internal predecessors, (231), 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 04:17:14,145 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2022-02-21 04:17:14,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:14,146 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:14,152 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:14,152 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:14,152 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:14,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 168 states, 167 states have (on average 1.3832335329341316) internal successors, (231), 167 states have internal predecessors, (231), 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 04:17:14,177 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2022-02-21 04:17:14,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:14,179 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:14,181 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:14,181 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:14,190 INFO L791 eck$LassoCheckResult]: Stem: 157#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 47#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 20#L490true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 137#L483true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 114#L498true main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 42#L951true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 82#L928true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 105#L271-2true [2022-02-21 04:17:14,190 INFO L793 eck$LassoCheckResult]: Loop: 105#L271-2true assume !false; 55#L272true assume test_~splverifierCounter~0#1 < 4; 77#L273true test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 14#L281true assume !(0 != test_~tmp~4#1); 98#L281-2true test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 101#L291true assume !(0 != test_~tmp___0~2#1); 99#L291-2true test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 118#L301true assume 0 != test_~tmp___2~0#1; 16#L307-2true assume { :begin_inline_timeShift } true; 163#L68true assume !(0 != ~pumpRunning~0); 91#L68-2true assume !(0 != ~systemActive~0); 37#L75-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 107#L405true __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 94#L337true assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 57#L343-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 43#L85true assume { :end_inline_timeShift } true; 105#L271-2true [2022-02-21 04:17:14,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:14,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:14,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:14,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912323575] [2022-02-21 04:17:14,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:14,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:14,322 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:14,384 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:14,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:14,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1182775606, now seen corresponding path program 1 times [2022-02-21 04:17:14,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:14,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633190129] [2022-02-21 04:17:14,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:14,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:14,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:14,396 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:14,404 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:14,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:14,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1756772614, now seen corresponding path program 1 times [2022-02-21 04:17:14,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:14,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985712751] [2022-02-21 04:17:14,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:14,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:14,580 INFO L290 TraceCheckUtils]: 0: Hoare triple {176#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; {178#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:14,580 INFO L290 TraceCheckUtils]: 1: Hoare triple {178#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; {178#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:14,581 INFO L290 TraceCheckUtils]: 2: Hoare triple {178#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {178#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:14,581 INFO L290 TraceCheckUtils]: 3: Hoare triple {178#(= 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~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; {179#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:17:14,582 INFO L290 TraceCheckUtils]: 4: Hoare triple {179#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; {180#(= |ULTIMATE.start_main_~tmp~9#1| ~systemActive~0)} is VALID [2022-02-21 04:17:14,583 INFO L290 TraceCheckUtils]: 5: Hoare triple {180#(= |ULTIMATE.start_main_~tmp~9#1| ~systemActive~0)} assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; {181#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,584 INFO L290 TraceCheckUtils]: 6: Hoare triple {181#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {181#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,585 INFO L290 TraceCheckUtils]: 7: Hoare triple {181#(not (= 0 ~systemActive~0))} assume !false; {181#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,585 INFO L290 TraceCheckUtils]: 8: Hoare triple {181#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {181#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,586 INFO L290 TraceCheckUtils]: 9: Hoare triple {181#(not (= 0 ~systemActive~0))} test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {181#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,587 INFO L290 TraceCheckUtils]: 10: Hoare triple {181#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~4#1); {181#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,587 INFO L290 TraceCheckUtils]: 11: Hoare triple {181#(not (= 0 ~systemActive~0))} test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {181#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,588 INFO L290 TraceCheckUtils]: 12: Hoare triple {181#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~2#1); {181#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,588 INFO L290 TraceCheckUtils]: 13: Hoare triple {181#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {181#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,589 INFO L290 TraceCheckUtils]: 14: Hoare triple {181#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {181#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,590 INFO L290 TraceCheckUtils]: 15: Hoare triple {181#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {181#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,590 INFO L290 TraceCheckUtils]: 16: Hoare triple {181#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {181#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,591 INFO L290 TraceCheckUtils]: 17: Hoare triple {181#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {177#false} is VALID [2022-02-21 04:17:14,592 INFO L290 TraceCheckUtils]: 18: Hoare triple {177#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; {177#false} is VALID [2022-02-21 04:17:14,592 INFO L290 TraceCheckUtils]: 19: Hoare triple {177#false} __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; {177#false} is VALID [2022-02-21 04:17:14,593 INFO L290 TraceCheckUtils]: 20: Hoare triple {177#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; {177#false} is VALID [2022-02-21 04:17:14,593 INFO L290 TraceCheckUtils]: 21: Hoare triple {177#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {177#false} is VALID [2022-02-21 04:17:14,594 INFO L290 TraceCheckUtils]: 22: Hoare triple {177#false} assume { :end_inline_timeShift } true; {177#false} is VALID [2022-02-21 04:17:14,595 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 04:17:14,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:14,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985712751] [2022-02-21 04:17:14,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985712751] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:14,597 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:14,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:14,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76829291] [2022-02-21 04:17:14,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:14,746 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:14,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:17:14,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:17:14,780 INFO L87 Difference]: Start difference. First operand has 168 states, 167 states have (on average 1.3832335329341316) internal successors, (231), 167 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:15,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:15,291 INFO L93 Difference]: Finished difference Result 165 states and 217 transitions. [2022-02-21 04:17:15,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:15,292 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:15,324 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 04:17:15,331 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 217 transitions. [2022-02-21 04:17:15,346 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2022-02-21 04:17:15,354 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 155 states and 207 transitions. [2022-02-21 04:17:15,355 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 155 [2022-02-21 04:17:15,356 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 155 [2022-02-21 04:17:15,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 155 states and 207 transitions. [2022-02-21 04:17:15,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:15,361 INFO L681 BuchiCegarLoop]: Abstraction has 155 states and 207 transitions. [2022-02-21 04:17:15,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states and 207 transitions. [2022-02-21 04:17:15,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2022-02-21 04:17:15,398 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:15,403 INFO L82 GeneralOperation]: Start isEquivalent. First operand 155 states and 207 transitions. Second operand has 155 states, 155 states have (on average 1.335483870967742) internal successors, (207), 154 states have internal predecessors, (207), 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 04:17:15,405 INFO L74 IsIncluded]: Start isIncluded. First operand 155 states and 207 transitions. Second operand has 155 states, 155 states have (on average 1.335483870967742) internal successors, (207), 154 states have internal predecessors, (207), 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 04:17:15,406 INFO L87 Difference]: Start difference. First operand 155 states and 207 transitions. Second operand has 155 states, 155 states have (on average 1.335483870967742) internal successors, (207), 154 states have internal predecessors, (207), 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 04:17:15,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:15,413 INFO L93 Difference]: Finished difference Result 155 states and 207 transitions. [2022-02-21 04:17:15,413 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 207 transitions. [2022-02-21 04:17:15,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:15,415 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:15,415 INFO L74 IsIncluded]: Start isIncluded. First operand has 155 states, 155 states have (on average 1.335483870967742) internal successors, (207), 154 states have internal predecessors, (207), 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 155 states and 207 transitions. [2022-02-21 04:17:15,416 INFO L87 Difference]: Start difference. First operand has 155 states, 155 states have (on average 1.335483870967742) internal successors, (207), 154 states have internal predecessors, (207), 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 155 states and 207 transitions. [2022-02-21 04:17:15,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:15,421 INFO L93 Difference]: Finished difference Result 155 states and 207 transitions. [2022-02-21 04:17:15,421 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 207 transitions. [2022-02-21 04:17:15,423 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:15,423 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:15,423 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:15,423 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:15,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 155 states have (on average 1.335483870967742) internal successors, (207), 154 states have internal predecessors, (207), 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 04:17:15,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 207 transitions. [2022-02-21 04:17:15,430 INFO L704 BuchiCegarLoop]: Abstraction has 155 states and 207 transitions. [2022-02-21 04:17:15,430 INFO L587 BuchiCegarLoop]: Abstraction has 155 states and 207 transitions. [2022-02-21 04:17:15,430 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:15,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 155 states and 207 transitions. [2022-02-21 04:17:15,431 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2022-02-21 04:17:15,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:15,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:15,432 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:15,433 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] [2022-02-21 04:17:15,433 INFO L791 eck$LassoCheckResult]: Stem: 504#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 423#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 383#L490 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 384#L483 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 490#L498 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 413#L951 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 414#L928 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 416#L271-2 [2022-02-21 04:17:15,433 INFO L793 eck$LassoCheckResult]: Loop: 416#L271-2 assume !false; 434#L272 assume test_~splverifierCounter~0#1 < 4; 435#L273 test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 371#L281 assume !(0 != test_~tmp~4#1); 373#L281-2 test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 478#L291 assume !(0 != test_~tmp___0~2#1); 375#L291-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 479#L301 assume 0 != test_~tmp___2~0#1; 376#L307-2 assume { :begin_inline_timeShift } true; 377#L68 assume !(0 != ~pumpRunning~0); 471#L68-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 466#L126 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; 467#L100-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 427#L92-3 assume { :end_inline_processEnvironment__wrappee__base } true; 428#L100-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 443#L126-1 assume { :end_inline_processEnvironment } true; 405#L75-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 406#L405 __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 474#L337 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 437#L343-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 415#L85 assume { :end_inline_timeShift } true; 416#L271-2 [2022-02-21 04:17:15,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:15,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:15,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:15,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530704822] [2022-02-21 04:17:15,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:15,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:15,454 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:15,473 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:15,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:15,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1675901973, now seen corresponding path program 1 times [2022-02-21 04:17:15,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:15,475 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72592842] [2022-02-21 04:17:15,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:15,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:15,494 INFO L290 TraceCheckUtils]: 0: Hoare triple {821#true} assume !false; {821#true} is VALID [2022-02-21 04:17:15,494 INFO L290 TraceCheckUtils]: 1: Hoare triple {821#true} assume test_~splverifierCounter~0#1 < 4; {821#true} is VALID [2022-02-21 04:17:15,494 INFO L290 TraceCheckUtils]: 2: Hoare triple {821#true} test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {821#true} is VALID [2022-02-21 04:17:15,495 INFO L290 TraceCheckUtils]: 3: Hoare triple {821#true} assume !(0 != test_~tmp~4#1); {821#true} is VALID [2022-02-21 04:17:15,495 INFO L290 TraceCheckUtils]: 4: Hoare triple {821#true} test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {821#true} is VALID [2022-02-21 04:17:15,495 INFO L290 TraceCheckUtils]: 5: Hoare triple {821#true} assume !(0 != test_~tmp___0~2#1); {821#true} is VALID [2022-02-21 04:17:15,495 INFO L290 TraceCheckUtils]: 6: Hoare triple {821#true} test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {821#true} is VALID [2022-02-21 04:17:15,495 INFO L290 TraceCheckUtils]: 7: Hoare triple {821#true} assume 0 != test_~tmp___2~0#1; {821#true} is VALID [2022-02-21 04:17:15,496 INFO L290 TraceCheckUtils]: 8: Hoare triple {821#true} assume { :begin_inline_timeShift } true; {821#true} is VALID [2022-02-21 04:17:15,496 INFO L290 TraceCheckUtils]: 9: Hoare triple {821#true} assume !(0 != ~pumpRunning~0); {823#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:15,497 INFO L290 TraceCheckUtils]: 10: Hoare triple {823#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {823#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:15,497 INFO L290 TraceCheckUtils]: 11: Hoare triple {823#(= ~pumpRunning~0 0)} 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; {823#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:15,498 INFO L290 TraceCheckUtils]: 12: Hoare triple {823#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {822#false} is VALID [2022-02-21 04:17:15,498 INFO L290 TraceCheckUtils]: 13: Hoare triple {822#false} assume { :end_inline_processEnvironment__wrappee__base } true; {822#false} is VALID [2022-02-21 04:17:15,498 INFO L290 TraceCheckUtils]: 14: Hoare triple {822#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {822#false} is VALID [2022-02-21 04:17:15,499 INFO L290 TraceCheckUtils]: 15: Hoare triple {822#false} assume { :end_inline_processEnvironment } true; {822#false} is VALID [2022-02-21 04:17:15,499 INFO L290 TraceCheckUtils]: 16: Hoare triple {822#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; {822#false} is VALID [2022-02-21 04:17:15,499 INFO L290 TraceCheckUtils]: 17: Hoare triple {822#false} __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; {822#false} is VALID [2022-02-21 04:17:15,499 INFO L290 TraceCheckUtils]: 18: Hoare triple {822#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; {822#false} is VALID [2022-02-21 04:17:15,500 INFO L290 TraceCheckUtils]: 19: Hoare triple {822#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {822#false} is VALID [2022-02-21 04:17:15,500 INFO L290 TraceCheckUtils]: 20: Hoare triple {822#false} assume { :end_inline_timeShift } true; {822#false} is VALID [2022-02-21 04:17:15,500 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 04:17:15,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:15,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72592842] [2022-02-21 04:17:15,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72592842] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:15,501 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:15,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:15,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559694932] [2022-02-21 04:17:15,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:15,502 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:15,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:15,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:15,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:15,503 INFO L87 Difference]: Start difference. First operand 155 states and 207 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:15,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:15,741 INFO L93 Difference]: Finished difference Result 216 states and 278 transitions. [2022-02-21 04:17:15,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:15,741 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:15,758 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:15,759 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 216 states and 278 transitions. [2022-02-21 04:17:15,768 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 150 [2022-02-21 04:17:15,776 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 216 states to 216 states and 278 transitions. [2022-02-21 04:17:15,776 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 216 [2022-02-21 04:17:15,777 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 216 [2022-02-21 04:17:15,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 216 states and 278 transitions. [2022-02-21 04:17:15,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:15,780 INFO L681 BuchiCegarLoop]: Abstraction has 216 states and 278 transitions. [2022-02-21 04:17:15,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states and 278 transitions. [2022-02-21 04:17:15,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-02-21 04:17:15,800 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:15,800 INFO L82 GeneralOperation]: Start isEquivalent. First operand 216 states and 278 transitions. Second operand has 216 states, 216 states have (on average 1.287037037037037) internal successors, (278), 215 states have internal predecessors, (278), 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 04:17:15,801 INFO L74 IsIncluded]: Start isIncluded. First operand 216 states and 278 transitions. Second operand has 216 states, 216 states have (on average 1.287037037037037) internal successors, (278), 215 states have internal predecessors, (278), 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 04:17:15,802 INFO L87 Difference]: Start difference. First operand 216 states and 278 transitions. Second operand has 216 states, 216 states have (on average 1.287037037037037) internal successors, (278), 215 states have internal predecessors, (278), 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 04:17:15,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:15,808 INFO L93 Difference]: Finished difference Result 216 states and 278 transitions. [2022-02-21 04:17:15,808 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 278 transitions. [2022-02-21 04:17:15,812 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:15,813 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:15,813 INFO L74 IsIncluded]: Start isIncluded. First operand has 216 states, 216 states have (on average 1.287037037037037) internal successors, (278), 215 states have internal predecessors, (278), 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 216 states and 278 transitions. [2022-02-21 04:17:15,814 INFO L87 Difference]: Start difference. First operand has 216 states, 216 states have (on average 1.287037037037037) internal successors, (278), 215 states have internal predecessors, (278), 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 216 states and 278 transitions. [2022-02-21 04:17:15,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:15,820 INFO L93 Difference]: Finished difference Result 216 states and 278 transitions. [2022-02-21 04:17:15,820 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 278 transitions. [2022-02-21 04:17:15,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:15,821 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:15,821 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:15,821 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:15,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 216 states have (on average 1.287037037037037) internal successors, (278), 215 states have internal predecessors, (278), 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 04:17:15,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 278 transitions. [2022-02-21 04:17:15,828 INFO L704 BuchiCegarLoop]: Abstraction has 216 states and 278 transitions. [2022-02-21 04:17:15,828 INFO L587 BuchiCegarLoop]: Abstraction has 216 states and 278 transitions. [2022-02-21 04:17:15,828 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:15,828 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 216 states and 278 transitions. [2022-02-21 04:17:15,831 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 150 [2022-02-21 04:17:15,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:15,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:15,836 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:15,836 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] [2022-02-21 04:17:15,837 INFO L791 eck$LassoCheckResult]: Stem: 1198#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1110#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 1069#L490 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1070#L483 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 1180#L498 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1101#L951 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 1102#L928 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1104#L271-2 [2022-02-21 04:17:15,838 INFO L793 eck$LassoCheckResult]: Loop: 1104#L271-2 assume !false; 1120#L272 assume test_~splverifierCounter~0#1 < 4; 1121#L273 test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 1059#L281 assume !(0 != test_~tmp~4#1); 1061#L281-2 test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 1166#L291 assume !(0 != test_~tmp___0~2#1); 1063#L291-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1167#L301 assume 0 != test_~tmp___2~0#1; 1064#L307-2 assume { :begin_inline_timeShift } true; 1065#L68 assume !(0 != ~pumpRunning~0); 1158#L68-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1152#L126 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; 1153#L100-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 1115#L445-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 1116#L450-1 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 1122#L228-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1188#L228-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1199#L234-1 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; 1145#L104-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1147#L92-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1148#L100-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1127#L126-1 assume { :end_inline_processEnvironment } true; 1093#L75-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 1094#L405 __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 1163#L337 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 1123#L343-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1103#L85 assume { :end_inline_timeShift } true; 1104#L271-2 [2022-02-21 04:17:15,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:15,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:15,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:15,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532834634] [2022-02-21 04:17:15,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:15,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:15,859 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:15,885 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:15,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:15,892 INFO L85 PathProgramCache]: Analyzing trace with hash 2016867469, now seen corresponding path program 1 times [2022-02-21 04:17:15,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:15,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609011964] [2022-02-21 04:17:15,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:15,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:15,906 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:15,915 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:15,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:15,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1902812087, now seen corresponding path program 1 times [2022-02-21 04:17:15,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:15,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123766541] [2022-02-21 04:17:15,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:15,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:15,998 INFO L290 TraceCheckUtils]: 0: Hoare triple {1695#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,999 INFO L290 TraceCheckUtils]: 1: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,999 INFO L290 TraceCheckUtils]: 2: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,000 INFO L290 TraceCheckUtils]: 3: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,000 INFO L290 TraceCheckUtils]: 4: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,001 INFO L290 TraceCheckUtils]: 5: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,005 INFO L290 TraceCheckUtils]: 6: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,005 INFO L290 TraceCheckUtils]: 7: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume !false; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,006 INFO L290 TraceCheckUtils]: 8: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,006 INFO L290 TraceCheckUtils]: 9: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,006 INFO L290 TraceCheckUtils]: 10: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~4#1); {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,007 INFO L290 TraceCheckUtils]: 11: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,007 INFO L290 TraceCheckUtils]: 12: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~2#1); {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,008 INFO L290 TraceCheckUtils]: 13: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,008 INFO L290 TraceCheckUtils]: 14: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,008 INFO L290 TraceCheckUtils]: 15: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,009 INFO L290 TraceCheckUtils]: 16: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,009 INFO L290 TraceCheckUtils]: 17: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,010 INFO L290 TraceCheckUtils]: 18: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} 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; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,010 INFO L290 TraceCheckUtils]: 19: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,011 INFO L290 TraceCheckUtils]: 20: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,011 INFO L290 TraceCheckUtils]: 21: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,012 INFO L290 TraceCheckUtils]: 22: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,012 INFO L290 TraceCheckUtils]: 23: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,012 INFO L290 TraceCheckUtils]: 24: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} 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; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,013 INFO L290 TraceCheckUtils]: 25: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,013 INFO L290 TraceCheckUtils]: 26: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,013 INFO L290 TraceCheckUtils]: 27: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,014 INFO L290 TraceCheckUtils]: 28: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {1697#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:16,014 INFO L290 TraceCheckUtils]: 29: Hoare triple {1697#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; {1698#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:17:16,015 INFO L290 TraceCheckUtils]: 30: Hoare triple {1698#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; {1699#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5#1| 0)} is VALID [2022-02-21 04:17:16,015 INFO L290 TraceCheckUtils]: 31: Hoare triple {1699#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; {1696#false} is VALID [2022-02-21 04:17:16,016 INFO L290 TraceCheckUtils]: 32: Hoare triple {1696#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {1696#false} is VALID [2022-02-21 04:17:16,016 INFO L290 TraceCheckUtils]: 33: Hoare triple {1696#false} assume { :end_inline_timeShift } true; {1696#false} is VALID [2022-02-21 04:17:16,016 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 04:17:16,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:16,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123766541] [2022-02-21 04:17:16,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123766541] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:16,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:16,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:16,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816323689] [2022-02-21 04:17:16,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:16,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:16,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:16,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:16,229 INFO L87 Difference]: Start difference. First operand 216 states and 278 transitions. cyclomatic complexity: 64 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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 04:17:17,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:17,070 INFO L93 Difference]: Finished difference Result 777 states and 998 transitions. [2022-02-21 04:17:17,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:17,071 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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 04:17:17,097 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:17,098 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 777 states and 998 transitions. [2022-02-21 04:17:17,134 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 577 [2022-02-21 04:17:17,168 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 777 states to 777 states and 998 transitions. [2022-02-21 04:17:17,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 777 [2022-02-21 04:17:17,169 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 777 [2022-02-21 04:17:17,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 777 states and 998 transitions. [2022-02-21 04:17:17,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:17,171 INFO L681 BuchiCegarLoop]: Abstraction has 777 states and 998 transitions. [2022-02-21 04:17:17,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states and 998 transitions. [2022-02-21 04:17:17,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 425. [2022-02-21 04:17:17,182 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:17,183 INFO L82 GeneralOperation]: Start isEquivalent. First operand 777 states and 998 transitions. Second operand has 425 states, 425 states have (on average 1.2729411764705882) internal successors, (541), 424 states have internal predecessors, (541), 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 04:17:17,184 INFO L74 IsIncluded]: Start isIncluded. First operand 777 states and 998 transitions. Second operand has 425 states, 425 states have (on average 1.2729411764705882) internal successors, (541), 424 states have internal predecessors, (541), 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 04:17:17,184 INFO L87 Difference]: Start difference. First operand 777 states and 998 transitions. Second operand has 425 states, 425 states have (on average 1.2729411764705882) internal successors, (541), 424 states have internal predecessors, (541), 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 04:17:17,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:17,215 INFO L93 Difference]: Finished difference Result 777 states and 998 transitions. [2022-02-21 04:17:17,215 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 998 transitions. [2022-02-21 04:17:17,217 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:17,217 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:17,218 INFO L74 IsIncluded]: Start isIncluded. First operand has 425 states, 425 states have (on average 1.2729411764705882) internal successors, (541), 424 states have internal predecessors, (541), 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 777 states and 998 transitions. [2022-02-21 04:17:17,219 INFO L87 Difference]: Start difference. First operand has 425 states, 425 states have (on average 1.2729411764705882) internal successors, (541), 424 states have internal predecessors, (541), 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 777 states and 998 transitions. [2022-02-21 04:17:17,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:17,250 INFO L93 Difference]: Finished difference Result 777 states and 998 transitions. [2022-02-21 04:17:17,251 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 998 transitions. [2022-02-21 04:17:17,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:17,252 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:17,252 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:17,252 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:17,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 425 states have (on average 1.2729411764705882) internal successors, (541), 424 states have internal predecessors, (541), 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 04:17:17,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 541 transitions. [2022-02-21 04:17:17,264 INFO L704 BuchiCegarLoop]: Abstraction has 425 states and 541 transitions. [2022-02-21 04:17:17,264 INFO L587 BuchiCegarLoop]: Abstraction has 425 states and 541 transitions. [2022-02-21 04:17:17,264 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:17:17,265 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 425 states and 541 transitions. [2022-02-21 04:17:17,267 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 300 [2022-02-21 04:17:17,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:17,267 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:17,268 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:17,268 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:17,268 INFO L791 eck$LassoCheckResult]: Stem: 2662#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 2558#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 2516#L490 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2517#L483 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 2636#L498 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 2548#L951 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 2549#L928 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2551#L271-2 [2022-02-21 04:17:17,268 INFO L793 eck$LassoCheckResult]: Loop: 2551#L271-2 assume !false; 2568#L272 assume test_~splverifierCounter~0#1 < 4; 2569#L273 test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 2595#L281 assume !(0 != test_~tmp~4#1); 2907#L281-2 test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 2906#L291 assume !(0 != test_~tmp___0~2#1); 2903#L291-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 2902#L301 assume 0 != test_~tmp___2~0#1; 2898#L307-2 assume { :begin_inline_timeShift } true; 2874#L68 assume !(0 != ~pumpRunning~0); 2875#L68-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 2784#L126 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; 2782#L100-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 2780#L445-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 2778#L450-1 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 2760#L228-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2758#L228-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2756#L234-1 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; 2754#L104-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2755#L92-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2652#L100-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2609#L126-1 assume { :end_inline_processEnvironment } true; 2775#L75-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 2774#L405 __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 2693#L337 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~5#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 2690#L437 __utac_acc__Specification3_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 2639#L343 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1); 2571#L343-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2550#L85 assume { :end_inline_timeShift } true; 2551#L271-2 [2022-02-21 04:17:17,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:17,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:17:17,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:17,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491435042] [2022-02-21 04:17:17,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:17,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:17,290 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:17,302 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:17,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:17,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1180640704, now seen corresponding path program 1 times [2022-02-21 04:17:17,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:17,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871780994] [2022-02-21 04:17:17,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:17,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:17,311 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:17,318 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:17,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:17,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1054905980, now seen corresponding path program 1 times [2022-02-21 04:17:17,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:17,319 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137140504] [2022-02-21 04:17:17,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:17,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:17,332 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:17,362 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:20,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:20 BoogieIcfgContainer [2022-02-21 04:17:20,292 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:20,293 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:20,293 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:20,293 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:20,294 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:13" (3/4) ... [2022-02-21 04:17:20,296 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:20,355 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:20,358 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:20,359 INFO L158 Benchmark]: Toolchain (without parser) took 7642.20ms. Allocated memory was 107.0MB in the beginning and 188.7MB in the end (delta: 81.8MB). Free memory was 76.0MB in the beginning and 159.8MB in the end (delta: -83.7MB). Peak memory consumption was 89.3MB. Max. memory is 16.1GB. [2022-02-21 04:17:20,360 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 81.8MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:20,361 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.63ms. Allocated memory is still 107.0MB. Free memory was 75.7MB in the beginning and 70.8MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:17:20,361 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.22ms. Allocated memory is still 107.0MB. Free memory was 70.8MB in the beginning and 66.7MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:20,363 INFO L158 Benchmark]: Boogie Preprocessor took 33.29ms. Allocated memory is still 107.0MB. Free memory was 66.3MB in the beginning and 64.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:20,363 INFO L158 Benchmark]: RCFGBuilder took 659.36ms. Allocated memory is still 107.0MB. Free memory was 63.9MB in the beginning and 67.4MB in the end (delta: -3.5MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:20,363 INFO L158 Benchmark]: BuchiAutomizer took 6314.75ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 67.4MB in the beginning and 43.5MB in the end (delta: 23.9MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. [2022-02-21 04:17:20,363 INFO L158 Benchmark]: Witness Printer took 64.96ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 43.5MB in the beginning and 159.8MB in the end (delta: -116.3MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-02-21 04:17:20,365 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 0.24ms. Allocated memory is still 81.8MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 479.63ms. Allocated memory is still 107.0MB. Free memory was 75.7MB in the beginning and 70.8MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.22ms. Allocated memory is still 107.0MB. Free memory was 70.8MB in the beginning and 66.7MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.29ms. Allocated memory is still 107.0MB. Free memory was 66.3MB in the beginning and 64.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 659.36ms. Allocated memory is still 107.0MB. Free memory was 63.9MB in the beginning and 67.4MB in the end (delta: -3.5MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 6314.75ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 67.4MB in the beginning and 43.5MB in the end (delta: 23.9MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. * Witness Printer took 64.96ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 43.5MB in the beginning and 159.8MB in the end (delta: -116.3MB). Peak memory consumption was 4.3MB. 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 425 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.0s. Construction of modules took 0.1s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 352 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 425 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1779 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1779 mSDsluCounter, 1897 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1156 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 741 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 271]: 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@1751d8f8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ceaeffe=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, retValue_acc=0, NULL=1, methaneLevelCritical=0, retValue_acc=1, tmp=1, retValue_acc=1, \result=0, retValue_acc=0, tmp=0, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f2c0fd9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2069e183=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e98683=0, tmp___0=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12dd7e11=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4cc9157a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6932dc80=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23a46395=0, tmp___2=29, tmp___1=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@404ac012=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, tmp___1=0, retValue_acc=1, NULL=0, waterLevel=1, systemActive=1, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66d25434=0, tmp=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 271]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L362] int waterLevel = 1; [L363] int methaneLevelCritical = 0; [L672] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L869] int cleanupTimeShifts = 4; [L942] int retValue_acc ; [L943] int tmp ; [L947] FCALL select_helpers() [L948] FCALL select_features() [L949] CALL, EXPR valid_product() [L494] int retValue_acc ; [L497] retValue_acc = 1 [L498] return (retValue_acc); [L949] RET, EXPR valid_product() [L949] tmp = valid_product() [L951] COND TRUE \read(tmp) [L953] FCALL setup() [L954] CALL runTest() [L936] CALL test() [L262] int splverifierCounter ; [L263] int tmp ; [L264] int tmp___0 ; [L265] int tmp___1 ; [L266] int tmp___2 ; [L269] splverifierCounter = 0 Loop: [L271] COND TRUE 1 [L273] COND TRUE splverifierCounter < 4 [L279] tmp = __VERIFIER_nondet_int() [L281] COND FALSE !(\read(tmp)) [L289] tmp___0 = __VERIFIER_nondet_int() [L291] COND FALSE !(\read(tmp___0)) [L299] tmp___2 = __VERIFIER_nondet_int() [L301] COND TRUE \read(tmp___2) [L314] CALL timeShift() [L68] COND FALSE !(\read(pumpRunning)) [L75] COND TRUE \read(systemActive) [L77] CALL processEnvironment() [L123] int tmp ; [L126] COND FALSE !(\read(pumpRunning)) [L141] CALL processEnvironment__wrappee__highWaterSensor() [L97] int tmp ; [L100] COND TRUE ! pumpRunning [L102] CALL, EXPR isHighWaterLevel() [L220] int retValue_acc ; [L221] int tmp ; [L222] int tmp___0 ; [L226] CALL, EXPR isHighWaterSensorDry() [L442] int retValue_acc ; [L445] COND TRUE waterLevel < 2 [L446] retValue_acc = 1 [L447] return (retValue_acc); [L226] RET, EXPR isHighWaterSensorDry() [L226] tmp = isHighWaterSensorDry() [L228] COND TRUE \read(tmp) [L229] tmp___0 = 0 [L233] retValue_acc = tmp___0 [L234] return (retValue_acc); [L102] RET, EXPR isHighWaterLevel() [L102] tmp = isHighWaterLevel() [L104] COND FALSE !(\read(tmp)) [L110] FCALL processEnvironment__wrappee__base() [L141] RET processEnvironment__wrappee__highWaterSensor() [L77] RET processEnvironment() [L83] CALL __utac_acc__Specification3_spec__1() [L329] int tmp ; [L330] int tmp___0 ; [L331] int tmp___1 ; [L335] CALL, EXPR isMethaneLevelCritical() [L401] int retValue_acc ; [L404] retValue_acc = methaneLevelCritical [L405] return (retValue_acc); [L335] RET, EXPR isMethaneLevelCritical() [L335] tmp = isMethaneLevelCritical() [L337] COND FALSE !(\read(tmp)) [L341] CALL, EXPR getWaterLevel() [L433] int retValue_acc ; [L436] retValue_acc = waterLevel [L437] return (retValue_acc); [L341] RET, EXPR getWaterLevel() [L341] tmp___0 = getWaterLevel() [L343] COND FALSE !(tmp___0 == 2) [L83] RET __utac_acc__Specification3_spec__1() [L314] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:20,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)