./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product50.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_product50.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 0552f986eafe304f33f56d4376c7c6a56e2d691e1035259c5c13e13b2a7157c1 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:11,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:11,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:11,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:11,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:11,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:11,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:11,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:11,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:11,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:11,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:11,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:11,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:11,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:11,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:11,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:11,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:11,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:11,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:11,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:11,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:11,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:11,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:11,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:11,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:11,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:11,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:11,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:11,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:11,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:11,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:11,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:11,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:11,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:11,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:11,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:11,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:11,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:11,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:11,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:11,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:11,508 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:11,531 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:11,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:11,531 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:11,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:11,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:11,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:11,533 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:11,533 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:11,533 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:11,533 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:11,534 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:11,534 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:11,534 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:11,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:11,534 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:11,534 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:11,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:11,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:11,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:11,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:11,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:11,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:11,535 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:11,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:11,536 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:11,536 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:11,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:11,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:11,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:11,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:11,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:11,537 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:11,537 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0552f986eafe304f33f56d4376c7c6a56e2d691e1035259c5c13e13b2a7157c1 [2022-02-21 04:17:11,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:11,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:11,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:11,780 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:11,781 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:11,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2022-02-21 04:17:11,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b770f39f/7cd92d76e63d43ab97ac206c31aebc6c/FLAGc56730945 [2022-02-21 04:17:12,307 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:12,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2022-02-21 04:17:12,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b770f39f/7cd92d76e63d43ab97ac206c31aebc6c/FLAGc56730945 [2022-02-21 04:17:12,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b770f39f/7cd92d76e63d43ab97ac206c31aebc6c [2022-02-21 04:17:12,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:12,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:12,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:12,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:12,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:12,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:12" (1/1) ... [2022-02-21 04:17:12,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ad1f531 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 04:17:12,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:12" (1/1) ... [2022-02-21 04:17:12,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:12,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:13,172 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_product50.cil.c[15143,15156] [2022-02-21 04:17:13,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:13,218 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:13,276 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_product50.cil.c[15143,15156] [2022-02-21 04:17:13,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:13,294 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:13,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:13 WrapperNode [2022-02-21 04:17:13,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:13,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:13,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:13,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:13,300 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 04:17:13,308 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 04:17:13,336 INFO L137 Inliner]: procedures = 56, calls = 156, calls flagged for inlining = 53, calls inlined = 81, statements flattened = 635 [2022-02-21 04:17:13,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:13,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:13,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:13,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:13,350 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 04:17:13,350 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 04:17:13,353 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 04:17:13,359 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 04:17:13,368 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 04:17:13,383 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 04:17:13,384 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 04:17:13,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:13,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:13,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:13,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:13,388 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 04:17:13,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:13,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:13,423 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 04:17:13,475 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 04:17:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:13,577 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:13,596 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:13,954 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:13,962 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:13,962 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:13,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:13 BoogieIcfgContainer [2022-02-21 04:17:13,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:13,965 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:13,966 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:13,968 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:13,968 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:13,969 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:12" (1/3) ... [2022-02-21 04:17:13,970 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4107d296 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 04:17:13,970 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:13,970 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 04:17:13,970 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4107d296 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 04:17:13,970 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:13,970 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 04:17:13,971 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product50.cil.c [2022-02-21 04:17:14,011 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:14,011 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:14,011 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:14,011 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:14,012 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:14,012 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:14,012 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:14,012 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:14,031 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 169 states, 168 states have (on average 1.380952380952381) internal successors, (232), 168 states have internal predecessors, (232), 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 04:17:14,091 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 109 [2022-02-21 04:17:14,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:14,092 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:14,096 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:14,096 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:14,097 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:14,101 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 169 states, 168 states have (on average 1.380952380952381) internal successors, (232), 168 states have internal predecessors, (232), 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 04:17:14,121 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 109 [2022-02-21 04:17:14,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:14,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:14,122 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:14,122 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:14,126 INFO L791 eck$LassoCheckResult]: Stem: 155#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 50#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret35#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 78#L687true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 159#L680true 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; 163#L695true main_#t~ret35#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret35#1;havoc main_#t~ret35#1; 149#L651true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 53#L624true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 147#L720-2true [2022-02-21 04:17:14,129 INFO L793 eck$LassoCheckResult]: Loop: 147#L720-2true assume !false; 114#L721true assume test_~splverifierCounter~0#1 < 4; 89#L722true test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 81#L730true assume !(0 != test_~tmp~5#1); 77#L730-2true test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 65#L740true assume !(0 != test_~tmp___0~1#1); 42#L740-2true test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 138#L750true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 133#L758true assume 0 != test_~tmp___1~1#1; 9#L758-2true assume { :begin_inline_timeShift } true; 20#L786true assume !(0 != ~pumpRunning~0); 60#L786-2true assume !(0 != ~systemActive~0); 38#L793-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 95#L503true __utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1; 111#L429true assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; 164#L435-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 29#L803true assume { :end_inline_timeShift } true; 147#L720-2true [2022-02-21 04:17:14,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:14,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:14,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:14,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729041300] [2022-02-21 04:17:14,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:14,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:14,218 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:14,256 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:14,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:14,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1925499188, now seen corresponding path program 1 times [2022-02-21 04:17:14,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:14,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400116032] [2022-02-21 04:17:14,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:14,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:14,281 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:14,299 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:14,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:14,304 INFO L85 PathProgramCache]: Analyzing trace with hash 993817584, now seen corresponding path program 1 times [2022-02-21 04:17:14,304 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:14,304 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737353623] [2022-02-21 04:17:14,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:14,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:14,462 INFO L290 TraceCheckUtils]: 0: Hoare triple {177#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; {179#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:14,462 INFO L290 TraceCheckUtils]: 1: Hoare triple {179#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret35#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; {179#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:14,463 INFO L290 TraceCheckUtils]: 2: Hoare triple {179#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {179#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:14,463 INFO L290 TraceCheckUtils]: 3: Hoare triple {179#(= 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; {180#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:17:14,464 INFO L290 TraceCheckUtils]: 4: Hoare triple {180#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret35#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret35#1;havoc main_#t~ret35#1; {181#(= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0)} is VALID [2022-02-21 04:17:14,464 INFO L290 TraceCheckUtils]: 5: Hoare triple {181#(= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0)} assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; {182#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,465 INFO L290 TraceCheckUtils]: 6: Hoare triple {182#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {182#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,465 INFO L290 TraceCheckUtils]: 7: Hoare triple {182#(not (= 0 ~systemActive~0))} assume !false; {182#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,466 INFO L290 TraceCheckUtils]: 8: Hoare triple {182#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {182#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,466 INFO L290 TraceCheckUtils]: 9: Hoare triple {182#(not (= 0 ~systemActive~0))} test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {182#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,467 INFO L290 TraceCheckUtils]: 10: Hoare triple {182#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~5#1); {182#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,467 INFO L290 TraceCheckUtils]: 11: Hoare triple {182#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {182#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,468 INFO L290 TraceCheckUtils]: 12: Hoare triple {182#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {182#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,468 INFO L290 TraceCheckUtils]: 13: Hoare triple {182#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {182#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,469 INFO L290 TraceCheckUtils]: 14: Hoare triple {182#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; {182#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,469 INFO L290 TraceCheckUtils]: 15: Hoare triple {182#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___1~1#1; {182#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,469 INFO L290 TraceCheckUtils]: 16: Hoare triple {182#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {182#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,470 INFO L290 TraceCheckUtils]: 17: Hoare triple {182#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {182#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:14,470 INFO L290 TraceCheckUtils]: 18: Hoare triple {182#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {178#false} is VALID [2022-02-21 04:17:14,470 INFO L290 TraceCheckUtils]: 19: Hoare triple {178#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {178#false} is VALID [2022-02-21 04:17:14,471 INFO L290 TraceCheckUtils]: 20: Hoare triple {178#false} __utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1; {178#false} is VALID [2022-02-21 04:17:14,471 INFO L290 TraceCheckUtils]: 21: Hoare triple {178#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; {178#false} is VALID [2022-02-21 04:17:14,471 INFO L290 TraceCheckUtils]: 22: Hoare triple {178#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {178#false} is VALID [2022-02-21 04:17:14,471 INFO L290 TraceCheckUtils]: 23: Hoare triple {178#false} assume { :end_inline_timeShift } true; {178#false} is VALID [2022-02-21 04:17:14,472 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 04:17:14,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:14,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737353623] [2022-02-21 04:17:14,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737353623] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:14,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:14,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:14,474 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119304552] [2022-02-21 04:17:14,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:14,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:14,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:17:14,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:17:14,595 INFO L87 Difference]: Start difference. First operand has 169 states, 168 states have (on average 1.380952380952381) internal successors, (232), 168 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:15,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:15,015 INFO L93 Difference]: Finished difference Result 166 states and 218 transitions. [2022-02-21 04:17:15,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:15,016 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:15,036 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:15,040 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 218 transitions. [2022-02-21 04:17:15,044 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2022-02-21 04:17:15,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 156 states and 208 transitions. [2022-02-21 04:17:15,051 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 156 [2022-02-21 04:17:15,051 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 156 [2022-02-21 04:17:15,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 156 states and 208 transitions. [2022-02-21 04:17:15,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:15,053 INFO L681 BuchiCegarLoop]: Abstraction has 156 states and 208 transitions. [2022-02-21 04:17:15,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states and 208 transitions. [2022-02-21 04:17:15,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2022-02-21 04:17:15,076 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:15,078 INFO L82 GeneralOperation]: Start isEquivalent. First operand 156 states and 208 transitions. Second operand has 156 states, 156 states have (on average 1.3333333333333333) internal successors, (208), 155 states have internal predecessors, (208), 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 04:17:15,079 INFO L74 IsIncluded]: Start isIncluded. First operand 156 states and 208 transitions. Second operand has 156 states, 156 states have (on average 1.3333333333333333) internal successors, (208), 155 states have internal predecessors, (208), 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 04:17:15,080 INFO L87 Difference]: Start difference. First operand 156 states and 208 transitions. Second operand has 156 states, 156 states have (on average 1.3333333333333333) internal successors, (208), 155 states have internal predecessors, (208), 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 04:17:15,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:15,089 INFO L93 Difference]: Finished difference Result 156 states and 208 transitions. [2022-02-21 04:17:15,090 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 208 transitions. [2022-02-21 04:17:15,091 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:15,091 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:15,092 INFO L74 IsIncluded]: Start isIncluded. First operand has 156 states, 156 states have (on average 1.3333333333333333) internal successors, (208), 155 states have internal predecessors, (208), 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 156 states and 208 transitions. [2022-02-21 04:17:15,093 INFO L87 Difference]: Start difference. First operand has 156 states, 156 states have (on average 1.3333333333333333) internal successors, (208), 155 states have internal predecessors, (208), 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 156 states and 208 transitions. [2022-02-21 04:17:15,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:15,101 INFO L93 Difference]: Finished difference Result 156 states and 208 transitions. [2022-02-21 04:17:15,101 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 208 transitions. [2022-02-21 04:17:15,102 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:15,102 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:15,102 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:15,103 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:15,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 156 states have (on average 1.3333333333333333) internal successors, (208), 155 states have internal predecessors, (208), 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 04:17:15,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 208 transitions. [2022-02-21 04:17:15,108 INFO L704 BuchiCegarLoop]: Abstraction has 156 states and 208 transitions. [2022-02-21 04:17:15,108 INFO L587 BuchiCegarLoop]: Abstraction has 156 states and 208 transitions. [2022-02-21 04:17:15,108 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:15,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 156 states and 208 transitions. [2022-02-21 04:17:15,109 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2022-02-21 04:17:15,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:15,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:15,109 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:15,109 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:15,110 INFO L791 eck$LassoCheckResult]: Stem: 507#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 435#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret35#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 436#L687 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 464#L680 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; 508#L695 main_#t~ret35#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret35#1;havoc main_#t~ret35#1; 504#L651 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 438#L624 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 398#L720-2 [2022-02-21 04:17:15,110 INFO L793 eck$LassoCheckResult]: Loop: 398#L720-2 assume !false; 488#L721 assume test_~splverifierCounter~0#1 < 4; 471#L722 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 465#L730 assume !(0 != test_~tmp~5#1); 387#L730-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 451#L740 assume !(0 != test_~tmp___0~1#1); 376#L740-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 423#L750 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 496#L980 assume { :end_inline_startSystem } true; 361#L758-2 assume { :begin_inline_timeShift } true; 362#L786 assume !(0 != ~pumpRunning~0); 382#L786-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 446#L844 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 416#L818-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 417#L810-3 assume { :end_inline_processEnvironment__wrappee__base } true; 400#L818-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 454#L844-1 assume { :end_inline_processEnvironment } true; 414#L793-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 415#L503 __utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1; 477#L429 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; 467#L435-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 397#L803 assume { :end_inline_timeShift } true; 398#L720-2 [2022-02-21 04:17:15,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:15,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:15,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:15,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717097186] [2022-02-21 04:17:15,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:15,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:15,123 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:15,135 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:15,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:15,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1808137926, now seen corresponding path program 1 times [2022-02-21 04:17:15,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:15,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247324507] [2022-02-21 04:17:15,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:15,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:15,150 INFO L290 TraceCheckUtils]: 0: Hoare triple {826#true} assume !false; {826#true} is VALID [2022-02-21 04:17:15,150 INFO L290 TraceCheckUtils]: 1: Hoare triple {826#true} assume test_~splverifierCounter~0#1 < 4; {826#true} is VALID [2022-02-21 04:17:15,151 INFO L290 TraceCheckUtils]: 2: Hoare triple {826#true} test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {826#true} is VALID [2022-02-21 04:17:15,151 INFO L290 TraceCheckUtils]: 3: Hoare triple {826#true} assume !(0 != test_~tmp~5#1); {826#true} is VALID [2022-02-21 04:17:15,151 INFO L290 TraceCheckUtils]: 4: Hoare triple {826#true} test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {826#true} is VALID [2022-02-21 04:17:15,151 INFO L290 TraceCheckUtils]: 5: Hoare triple {826#true} assume !(0 != test_~tmp___0~1#1); {826#true} is VALID [2022-02-21 04:17:15,152 INFO L290 TraceCheckUtils]: 6: Hoare triple {826#true} test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {826#true} is VALID [2022-02-21 04:17:15,152 INFO L290 TraceCheckUtils]: 7: Hoare triple {826#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {826#true} is VALID [2022-02-21 04:17:15,152 INFO L290 TraceCheckUtils]: 8: Hoare triple {826#true} assume { :end_inline_startSystem } true; {826#true} is VALID [2022-02-21 04:17:15,152 INFO L290 TraceCheckUtils]: 9: Hoare triple {826#true} assume { :begin_inline_timeShift } true; {826#true} is VALID [2022-02-21 04:17:15,153 INFO L290 TraceCheckUtils]: 10: Hoare triple {826#true} assume !(0 != ~pumpRunning~0); {828#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:15,153 INFO L290 TraceCheckUtils]: 11: Hoare triple {828#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; {828#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:15,153 INFO L290 TraceCheckUtils]: 12: Hoare triple {828#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; {828#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:15,154 INFO L290 TraceCheckUtils]: 13: Hoare triple {828#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {827#false} is VALID [2022-02-21 04:17:15,154 INFO L290 TraceCheckUtils]: 14: Hoare triple {827#false} assume { :end_inline_processEnvironment__wrappee__base } true; {827#false} is VALID [2022-02-21 04:17:15,154 INFO L290 TraceCheckUtils]: 15: Hoare triple {827#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {827#false} is VALID [2022-02-21 04:17:15,154 INFO L290 TraceCheckUtils]: 16: Hoare triple {827#false} assume { :end_inline_processEnvironment } true; {827#false} is VALID [2022-02-21 04:17:15,154 INFO L290 TraceCheckUtils]: 17: Hoare triple {827#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {827#false} is VALID [2022-02-21 04:17:15,155 INFO L290 TraceCheckUtils]: 18: Hoare triple {827#false} __utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1; {827#false} is VALID [2022-02-21 04:17:15,155 INFO L290 TraceCheckUtils]: 19: Hoare triple {827#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; {827#false} is VALID [2022-02-21 04:17:15,155 INFO L290 TraceCheckUtils]: 20: Hoare triple {827#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {827#false} is VALID [2022-02-21 04:17:15,155 INFO L290 TraceCheckUtils]: 21: Hoare triple {827#false} assume { :end_inline_timeShift } true; {827#false} is VALID [2022-02-21 04:17:15,156 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 04:17:15,156 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:15,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247324507] [2022-02-21 04:17:15,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247324507] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:15,165 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:15,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:15,166 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019550599] [2022-02-21 04:17:15,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:15,166 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:15,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:15,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:15,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:15,180 INFO L87 Difference]: Start difference. First operand 156 states and 208 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:15,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:15,428 INFO L93 Difference]: Finished difference Result 218 states and 280 transitions. [2022-02-21 04:17:15,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:15,428 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:15,441 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:15,442 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 218 states and 280 transitions. [2022-02-21 04:17:15,448 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2022-02-21 04:17:15,455 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 218 states to 218 states and 280 transitions. [2022-02-21 04:17:15,455 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 218 [2022-02-21 04:17:15,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 218 [2022-02-21 04:17:15,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 218 states and 280 transitions. [2022-02-21 04:17:15,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:15,458 INFO L681 BuchiCegarLoop]: Abstraction has 218 states and 280 transitions. [2022-02-21 04:17:15,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states and 280 transitions. [2022-02-21 04:17:15,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2022-02-21 04:17:15,476 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:15,477 INFO L82 GeneralOperation]: Start isEquivalent. First operand 218 states and 280 transitions. Second operand has 218 states, 218 states have (on average 1.2844036697247707) internal successors, (280), 217 states have internal predecessors, (280), 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 04:17:15,480 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states and 280 transitions. Second operand has 218 states, 218 states have (on average 1.2844036697247707) internal successors, (280), 217 states have internal predecessors, (280), 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 04:17:15,481 INFO L87 Difference]: Start difference. First operand 218 states and 280 transitions. Second operand has 218 states, 218 states have (on average 1.2844036697247707) internal successors, (280), 217 states have internal predecessors, (280), 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 04:17:15,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:15,486 INFO L93 Difference]: Finished difference Result 218 states and 280 transitions. [2022-02-21 04:17:15,486 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 280 transitions. [2022-02-21 04:17:15,491 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:15,492 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:15,492 INFO L74 IsIncluded]: Start isIncluded. First operand has 218 states, 218 states have (on average 1.2844036697247707) internal successors, (280), 217 states have internal predecessors, (280), 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 218 states and 280 transitions. [2022-02-21 04:17:15,492 INFO L87 Difference]: Start difference. First operand has 218 states, 218 states have (on average 1.2844036697247707) internal successors, (280), 217 states have internal predecessors, (280), 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 218 states and 280 transitions. [2022-02-21 04:17:15,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:15,498 INFO L93 Difference]: Finished difference Result 218 states and 280 transitions. [2022-02-21 04:17:15,498 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 280 transitions. [2022-02-21 04:17:15,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:15,498 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:15,498 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:15,499 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:15,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 218 states have (on average 1.2844036697247707) internal successors, (280), 217 states have internal predecessors, (280), 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 04:17:15,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 280 transitions. [2022-02-21 04:17:15,504 INFO L704 BuchiCegarLoop]: Abstraction has 218 states and 280 transitions. [2022-02-21 04:17:15,504 INFO L587 BuchiCegarLoop]: Abstraction has 218 states and 280 transitions. [2022-02-21 04:17:15,505 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:15,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 218 states and 280 transitions. [2022-02-21 04:17:15,508 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2022-02-21 04:17:15,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:15,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:15,510 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:15,510 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] [2022-02-21 04:17:15,511 INFO L791 eck$LassoCheckResult]: Stem: 1212#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 1124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret35#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 1125#L687 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1157#L680 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; 1214#L695 main_#t~ret35#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret35#1;havoc main_#t~ret35#1; 1207#L651 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1129#L624 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1090#L720-2 [2022-02-21 04:17:15,512 INFO L793 eck$LassoCheckResult]: Loop: 1090#L720-2 assume !false; 1185#L721 assume test_~splverifierCounter~0#1 < 4; 1186#L722 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1232#L730 assume !(0 != test_~tmp~5#1); 1230#L730-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1229#L740 assume !(0 != test_~tmp___0~1#1); 1228#L740-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1227#L750 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1225#L980 assume { :end_inline_startSystem } true; 1224#L758-2 assume { :begin_inline_timeShift } true; 1074#L786 assume !(0 != ~pumpRunning~0); 1075#L786-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1173#L844 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1108#L818-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret52#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 1109#L543-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 1199#L548-1 isHighWaterLevel_#t~ret52#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret52#1;havoc isHighWaterLevel_#t~ret52#1; 1203#L946-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1180#L946-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 1181#L952-1 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 1132#L822-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1091#L810-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1092#L818-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1148#L844-1 assume { :end_inline_processEnvironment } true; 1106#L793-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1107#L503 __utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1; 1169#L429 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; 1160#L435-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1089#L803 assume { :end_inline_timeShift } true; 1090#L720-2 [2022-02-21 04:17:15,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:15,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:15,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:15,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038454556] [2022-02-21 04:17:15,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:15,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:15,550 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:15,560 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:15,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:15,561 INFO L85 PathProgramCache]: Analyzing trace with hash 691165874, now seen corresponding path program 1 times [2022-02-21 04:17:15,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:15,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322507511] [2022-02-21 04:17:15,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:15,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:15,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:15,567 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:15,573 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:15,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:15,588 INFO L85 PathProgramCache]: Analyzing trace with hash -559816074, now seen corresponding path program 1 times [2022-02-21 04:17:15,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:15,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091603624] [2022-02-21 04:17:15,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:15,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:15,626 INFO L290 TraceCheckUtils]: 0: Hoare triple {1708#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,626 INFO L290 TraceCheckUtils]: 1: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret35#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,627 INFO L290 TraceCheckUtils]: 2: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,627 INFO L290 TraceCheckUtils]: 3: Hoare triple {1710#(= ~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; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,627 INFO L290 TraceCheckUtils]: 4: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} main_#t~ret35#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret35#1;havoc main_#t~ret35#1; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,628 INFO L290 TraceCheckUtils]: 5: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,628 INFO L290 TraceCheckUtils]: 6: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,629 INFO L290 TraceCheckUtils]: 7: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume !false; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,629 INFO L290 TraceCheckUtils]: 8: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,629 INFO L290 TraceCheckUtils]: 9: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,630 INFO L290 TraceCheckUtils]: 10: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~5#1); {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,630 INFO L290 TraceCheckUtils]: 11: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,630 INFO L290 TraceCheckUtils]: 12: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~1#1); {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,631 INFO L290 TraceCheckUtils]: 13: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,631 INFO L290 TraceCheckUtils]: 14: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,631 INFO L290 TraceCheckUtils]: 15: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume { :end_inline_startSystem } true; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,632 INFO L290 TraceCheckUtils]: 16: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,632 INFO L290 TraceCheckUtils]: 17: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,633 INFO L290 TraceCheckUtils]: 18: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,633 INFO L290 TraceCheckUtils]: 19: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,633 INFO L290 TraceCheckUtils]: 20: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret52#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,634 INFO L290 TraceCheckUtils]: 21: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,634 INFO L290 TraceCheckUtils]: 22: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_#t~ret52#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret52#1;havoc isHighWaterLevel_#t~ret52#1; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,634 INFO L290 TraceCheckUtils]: 23: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,635 INFO L290 TraceCheckUtils]: 24: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,635 INFO L290 TraceCheckUtils]: 25: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,635 INFO L290 TraceCheckUtils]: 26: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,636 INFO L290 TraceCheckUtils]: 27: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,636 INFO L290 TraceCheckUtils]: 28: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,636 INFO L290 TraceCheckUtils]: 29: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {1710#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:15,637 INFO L290 TraceCheckUtils]: 30: Hoare triple {1710#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {1711#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:17:15,637 INFO L290 TraceCheckUtils]: 31: Hoare triple {1711#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1; {1712#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~3#1| 0)} is VALID [2022-02-21 04:17:15,638 INFO L290 TraceCheckUtils]: 32: Hoare triple {1712#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~3#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; {1709#false} is VALID [2022-02-21 04:17:15,638 INFO L290 TraceCheckUtils]: 33: Hoare triple {1709#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {1709#false} is VALID [2022-02-21 04:17:15,638 INFO L290 TraceCheckUtils]: 34: Hoare triple {1709#false} assume { :end_inline_timeShift } true; {1709#false} is VALID [2022-02-21 04:17:15,638 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 04:17:15,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:15,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091603624] [2022-02-21 04:17:15,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091603624] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:15,639 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:15,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:15,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923360842] [2022-02-21 04:17:15,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:15,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:15,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:15,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:15,806 INFO L87 Difference]: Start difference. First operand 218 states and 280 transitions. cyclomatic complexity: 64 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 04:17:16,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:16,465 INFO L93 Difference]: Finished difference Result 789 states and 1010 transitions. [2022-02-21 04:17:16,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:16,466 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 04:17:16,489 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:16,489 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 789 states and 1010 transitions. [2022-02-21 04:17:16,514 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 589 [2022-02-21 04:17:16,539 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 789 states to 789 states and 1010 transitions. [2022-02-21 04:17:16,539 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 789 [2022-02-21 04:17:16,540 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 789 [2022-02-21 04:17:16,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 789 states and 1010 transitions. [2022-02-21 04:17:16,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:16,541 INFO L681 BuchiCegarLoop]: Abstraction has 789 states and 1010 transitions. [2022-02-21 04:17:16,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states and 1010 transitions. [2022-02-21 04:17:16,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 429. [2022-02-21 04:17:16,549 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:16,549 INFO L82 GeneralOperation]: Start isEquivalent. First operand 789 states and 1010 transitions. Second operand has 429 states, 429 states have (on average 1.2703962703962703) internal successors, (545), 428 states have internal predecessors, (545), 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 04:17:16,550 INFO L74 IsIncluded]: Start isIncluded. First operand 789 states and 1010 transitions. Second operand has 429 states, 429 states have (on average 1.2703962703962703) internal successors, (545), 428 states have internal predecessors, (545), 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 04:17:16,551 INFO L87 Difference]: Start difference. First operand 789 states and 1010 transitions. Second operand has 429 states, 429 states have (on average 1.2703962703962703) internal successors, (545), 428 states have internal predecessors, (545), 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 04:17:16,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:16,575 INFO L93 Difference]: Finished difference Result 789 states and 1010 transitions. [2022-02-21 04:17:16,576 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1010 transitions. [2022-02-21 04:17:16,576 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:16,577 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:16,577 INFO L74 IsIncluded]: Start isIncluded. First operand has 429 states, 429 states have (on average 1.2703962703962703) internal successors, (545), 428 states have internal predecessors, (545), 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 789 states and 1010 transitions. [2022-02-21 04:17:16,578 INFO L87 Difference]: Start difference. First operand has 429 states, 429 states have (on average 1.2703962703962703) internal successors, (545), 428 states have internal predecessors, (545), 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 789 states and 1010 transitions. [2022-02-21 04:17:16,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:16,599 INFO L93 Difference]: Finished difference Result 789 states and 1010 transitions. [2022-02-21 04:17:16,599 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1010 transitions. [2022-02-21 04:17:16,600 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:16,600 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:16,601 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:16,601 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:16,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 429 states have (on average 1.2703962703962703) internal successors, (545), 428 states have internal predecessors, (545), 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 04:17:16,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 545 transitions. [2022-02-21 04:17:16,608 INFO L704 BuchiCegarLoop]: Abstraction has 429 states and 545 transitions. [2022-02-21 04:17:16,609 INFO L587 BuchiCegarLoop]: Abstraction has 429 states and 545 transitions. [2022-02-21 04:17:16,609 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:17:16,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 429 states and 545 transitions. [2022-02-21 04:17:16,611 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 304 [2022-02-21 04:17:16,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:16,611 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:16,612 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:16,612 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:16,612 INFO L791 eck$LassoCheckResult]: Stem: 2695#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 2592#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret35#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 2593#L687 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2624#L680 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; 2698#L695 main_#t~ret35#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret35#1;havoc main_#t~ret35#1; 2690#L651 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 2595#L624 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2552#L720-2 [2022-02-21 04:17:16,612 INFO L793 eck$LassoCheckResult]: Loop: 2552#L720-2 assume !false; 2657#L721 assume test_~splverifierCounter~0#1 < 4; 2632#L722 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 2625#L730 assume !(0 != test_~tmp~5#1); 2543#L730-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 2611#L740 assume !(0 != test_~tmp___0~1#1); 2531#L740-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 2576#L750 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2905#L980 assume { :end_inline_startSystem } true; 2903#L758-2 assume { :begin_inline_timeShift } true; 2901#L786 assume !(0 != ~pumpRunning~0); 2896#L786-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 2640#L844 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 2570#L818-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret52#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 2571#L543-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 2671#L548-1 isHighWaterLevel_#t~ret52#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret52#1;havoc isHighWaterLevel_#t~ret52#1; 2688#L946-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2741#L946-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 2740#L952-1 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 2738#L822-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2735#L810-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2733#L818-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2615#L844-1 assume { :end_inline_processEnvironment } true; 2729#L793-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 2728#L503 __utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1; 2727#L429 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~3#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 2725#L535 __utac_acc__Specification3_spec__1_#t~ret28#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; 2726#L435 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 2937#L435-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2551#L803 assume { :end_inline_timeShift } true; 2552#L720-2 [2022-02-21 04:17:16,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:16,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:17:16,613 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:16,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820585945] [2022-02-21 04:17:16,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:16,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:16,621 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:16,628 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:16,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:16,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1508272411, now seen corresponding path program 1 times [2022-02-21 04:17:16,628 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:16,628 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637168662] [2022-02-21 04:17:16,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:16,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:16,634 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:16,639 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:16,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:16,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1111081559, now seen corresponding path program 1 times [2022-02-21 04:17:16,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:16,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791248411] [2022-02-21 04:17:16,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:16,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:16,649 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:16,666 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:19,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:19 BoogieIcfgContainer [2022-02-21 04:17:19,416 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:19,416 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:19,416 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:19,417 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:19,417 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 04:17:19,418 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:19,449 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:19,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:19,450 INFO L158 Benchmark]: Toolchain (without parser) took 6727.05ms. Allocated memory was 88.1MB in the beginning and 157.3MB in the end (delta: 69.2MB). Free memory was 50.1MB in the beginning and 100.9MB in the end (delta: -50.8MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-02-21 04:17:19,450 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:19,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 569.40ms. Allocated memory is still 88.1MB. Free memory was 49.9MB in the beginning and 52.9MB in the end (delta: -3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:19,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.13ms. Allocated memory is still 88.1MB. Free memory was 52.9MB in the beginning and 48.6MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:19,451 INFO L158 Benchmark]: Boogie Preprocessor took 49.44ms. Allocated memory is still 88.1MB. Free memory was 48.6MB in the beginning and 46.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:19,451 INFO L158 Benchmark]: RCFGBuilder took 577.97ms. Allocated memory is still 88.1MB. Free memory was 46.0MB in the beginning and 51.2MB in the end (delta: -5.2MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2022-02-21 04:17:19,451 INFO L158 Benchmark]: BuchiAutomizer took 5450.68ms. Allocated memory was 88.1MB in the beginning and 157.3MB in the end (delta: 69.2MB). Free memory was 51.2MB in the beginning and 104.0MB in the end (delta: -52.8MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:19,452 INFO L158 Benchmark]: Witness Printer took 32.81ms. Allocated memory is still 157.3MB. Free memory was 104.0MB in the beginning and 100.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:19,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 569.40ms. Allocated memory is still 88.1MB. Free memory was 49.9MB in the beginning and 52.9MB in the end (delta: -3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.13ms. Allocated memory is still 88.1MB. Free memory was 52.9MB in the beginning and 48.6MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.44ms. Allocated memory is still 88.1MB. Free memory was 48.6MB in the beginning and 46.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 577.97ms. Allocated memory is still 88.1MB. Free memory was 46.0MB in the beginning and 51.2MB in the end (delta: -5.2MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 5450.68ms. Allocated memory was 88.1MB in the beginning and 157.3MB in the end (delta: 69.2MB). Free memory was 51.2MB in the beginning and 104.0MB in the end (delta: -52.8MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. * Witness Printer took 32.81ms. Allocated memory is still 157.3MB. Free memory was 104.0MB in the beginning and 100.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 429 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.1s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 360 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 429 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1783 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1783 mSDsluCounter, 1897 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1164 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 733 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: 720]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5489d5fd=0, tmp=0, methaneLevelCritical=0, retValue_acc=1, tmp___0=1, \result=0, retValue_acc=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7012f11=0, retValue_acc=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ff972e3=0, \result=1, \result=1, retValue_acc=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6dfdedc6=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e6d10e7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@688d8e40=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47824842=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c338d9e=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d1ce3aa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a5b5c6f=0, cleanupTimeShifts=4, \result=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2aca6b62=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 720]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L460] int waterLevel = 1; [L461] int methaneLevelCritical = 0; [L563] int cleanupTimeShifts = 4; [L779] int pumpRunning = 0; [L780] int systemActive = 1; [L642] int retValue_acc ; [L643] int tmp ; [L647] FCALL select_helpers() [L648] FCALL select_features() [L649] CALL, EXPR valid_product() [L691] int retValue_acc ; [L694] retValue_acc = 1 [L695] return (retValue_acc); [L649] RET, EXPR valid_product() [L649] tmp = valid_product() [L651] COND TRUE \read(tmp) [L653] FCALL setup() [L654] CALL runTest() [L633] CALL test() [L711] int splverifierCounter ; [L712] int tmp ; [L713] int tmp___0 ; [L714] int tmp___1 ; [L715] int tmp___2 ; [L718] splverifierCounter = 0 Loop: [L720] COND TRUE 1 [L722] COND TRUE splverifierCounter < 4 [L728] tmp = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp)) [L738] tmp___0 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___0)) [L748] tmp___2 = __VERIFIER_nondet_int() [L750] COND TRUE \read(tmp___2) [L752] CALL startSystem() [L979] systemActive = 1 [L752] RET startSystem() [L765] CALL timeShift() [L786] COND FALSE !(\read(pumpRunning)) [L793] COND TRUE \read(systemActive) [L795] CALL processEnvironment() [L841] int tmp ; [L844] COND FALSE !(\read(pumpRunning)) [L859] CALL processEnvironment__wrappee__highWaterSensor() [L815] int tmp ; [L818] COND TRUE ! pumpRunning [L820] CALL, EXPR isHighWaterLevel() [L938] int retValue_acc ; [L939] int tmp ; [L940] int tmp___0 ; [L944] CALL, EXPR isHighWaterSensorDry() [L540] int retValue_acc ; [L543] COND TRUE waterLevel < 2 [L544] retValue_acc = 1 [L545] return (retValue_acc); [L944] RET, EXPR isHighWaterSensorDry() [L944] tmp = isHighWaterSensorDry() [L946] COND TRUE \read(tmp) [L947] tmp___0 = 0 [L951] retValue_acc = tmp___0 [L952] return (retValue_acc); [L820] RET, EXPR isHighWaterLevel() [L820] tmp = isHighWaterLevel() [L822] COND FALSE !(\read(tmp)) [L828] FCALL processEnvironment__wrappee__base() [L859] RET processEnvironment__wrappee__highWaterSensor() [L795] RET processEnvironment() [L801] CALL __utac_acc__Specification3_spec__1() [L421] int tmp ; [L422] int tmp___0 ; [L423] int tmp___1 ; [L427] CALL, EXPR isMethaneLevelCritical() [L499] int retValue_acc ; [L502] retValue_acc = methaneLevelCritical [L503] return (retValue_acc); [L427] RET, EXPR isMethaneLevelCritical() [L427] tmp = isMethaneLevelCritical() [L429] COND FALSE !(\read(tmp)) [L433] CALL, EXPR getWaterLevel() [L531] int retValue_acc ; [L534] retValue_acc = waterLevel [L535] return (retValue_acc); [L433] RET, EXPR getWaterLevel() [L433] tmp___0 = getWaterLevel() [L435] COND FALSE !(tmp___0 == 2) [L801] RET __utac_acc__Specification3_spec__1() [L765] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:19,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)