./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 45ba8c3ee5105630bc9146965d68439e6204903aca4c5a31cd4f017e456c8589 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:41:54,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:41:54,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:41:54,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:41:54,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:41:54,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:41:54,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:41:54,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:41:54,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:41:54,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:41:54,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:41:54,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:41:54,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:41:54,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:41:54,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:41:54,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:41:54,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:41:54,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:41:54,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:41:54,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:41:54,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:41:54,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:41:54,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:41:54,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:41:54,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:41:54,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:41:54,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:41:54,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:41:54,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:41:54,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:41:54,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:41:54,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:41:54,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:41:54,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:41:54,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:41:54,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:41:54,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:41:54,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:41:54,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:41:54,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:41:54,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:41:54,490 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:41:54,518 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:41:54,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:41:54,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:41:54,520 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:41:54,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:41:54,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:41:54,522 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:41:54,522 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:41:54,522 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:41:54,522 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:41:54,523 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:41:54,523 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:41:54,523 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:41:54,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:41:54,523 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:41:54,524 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:41:54,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:41:54,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:41:54,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:41:54,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:41:54,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:41:54,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:41:54,525 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:41:54,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:41:54,525 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:41:54,525 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:41:54,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:41:54,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:41:54,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:41:54,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:41:54,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:41:54,527 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:41:54,527 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45ba8c3ee5105630bc9146965d68439e6204903aca4c5a31cd4f017e456c8589 [2021-12-28 09:41:54,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:41:54,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:41:54,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:41:54,821 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:41:54,821 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:41:54,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2021-12-28 09:41:54,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/091b7c8d9/a4b9021972da4632ae6b71a8f3ec2c1c/FLAG1977d0a6e [2021-12-28 09:41:55,291 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:41:55,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2021-12-28 09:41:55,302 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/091b7c8d9/a4b9021972da4632ae6b71a8f3ec2c1c/FLAG1977d0a6e [2021-12-28 09:41:55,314 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/091b7c8d9/a4b9021972da4632ae6b71a8f3ec2c1c [2021-12-28 09:41:55,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:41:55,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:41:55,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:41:55,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:41:55,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:41:55,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:41:55" (1/1) ... [2021-12-28 09:41:55,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a630c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:55, skipping insertion in model container [2021-12-28 09:41:55,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:41:55" (1/1) ... [2021-12-28 09:41:55,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:41:55,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:41:55,527 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_spec5_product35.cil.c[1605,1618] [2021-12-28 09:41:55,637 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:41:55,647 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:41:55,661 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_spec5_product35.cil.c[1605,1618] [2021-12-28 09:41:55,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:41:55,718 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:41:55,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:55 WrapperNode [2021-12-28 09:41:55,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:41:55,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:41:55,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:41:55,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:41:55,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:55" (1/1) ... [2021-12-28 09:41:55,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:55" (1/1) ... [2021-12-28 09:41:55,775 INFO L137 Inliner]: procedures = 55, calls = 154, calls flagged for inlining = 51, calls inlined = 56, statements flattened = 436 [2021-12-28 09:41:55,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:41:55,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:41:55,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:41:55,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:41:55,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:55" (1/1) ... [2021-12-28 09:41:55,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:55" (1/1) ... [2021-12-28 09:41:55,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:55" (1/1) ... [2021-12-28 09:41:55,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:55" (1/1) ... [2021-12-28 09:41:55,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:55" (1/1) ... [2021-12-28 09:41:55,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:55" (1/1) ... [2021-12-28 09:41:55,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:55" (1/1) ... [2021-12-28 09:41:55,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:41:55,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:41:55,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:41:55,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:41:55,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:55" (1/1) ... [2021-12-28 09:41:55,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:41:55,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:41:55,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:41:55,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-28 09:41:55,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:41:55,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:41:55,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:41:55,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:41:55,974 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:41:55,975 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:41:56,211 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:41:56,216 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:41:56,216 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:41:56,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:41:56 BoogieIcfgContainer [2021-12-28 09:41:56,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:41:56,218 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:41:56,218 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:41:56,220 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:41:56,220 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:41:56,221 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:41:55" (1/3) ... [2021-12-28 09:41:56,221 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1fa1582e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:41:56, skipping insertion in model container [2021-12-28 09:41:56,221 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:41:56,222 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:55" (2/3) ... [2021-12-28 09:41:56,222 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1fa1582e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:41:56, skipping insertion in model container [2021-12-28 09:41:56,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:41:56,222 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:41:56" (3/3) ... [2021-12-28 09:41:56,223 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2021-12-28 09:41:56,248 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:41:56,248 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:41:56,248 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:41:56,248 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:41:56,249 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:41:56,249 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:41:56,249 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:41:56,249 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:41:56,259 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 119 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 118 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:41:56,278 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2021-12-28 09:41:56,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:41:56,278 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:41:56,283 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:56,283 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:56,283 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:41:56,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 119 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 118 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:41:56,291 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2021-12-28 09:41:56,291 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:41:56,291 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:41:56,292 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:56,292 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:56,296 INFO L791 eck$LassoCheckResult]: Stem: 109#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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 38#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 74#L553true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 31#L546true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 64#L561true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 84#L151true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 44#L122true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 78#L914true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 29#L577-2true [2021-12-28 09:41:56,296 INFO L793 eck$LassoCheckResult]: Loop: 29#L577-2true assume !false; 39#L578true assume test_~splverifierCounter~0#1 < 4; 15#L579true test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 116#L587true assume !(0 != test_~tmp~4#1); 54#L587-2true test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 105#L597true assume !(0 != test_~tmp___0~0#1); 52#L597-2true test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 28#L607true assume 0 != test_~tmp___2~0#1; 86#L613-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 40#L833true __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 89#L924true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 34#L748true assume !(0 != ~pumpRunning~0); 5#L748-2true assume !(0 != ~systemActive~0); 59#L755-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 11#L714true __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 69#L935true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 81#L935-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 93#L765true assume { :end_inline_timeShift } true; 29#L577-2true [2021-12-28 09:41:56,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:56,300 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-28 09:41:56,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:56,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108316741] [2021-12-28 09:41:56,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:56,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:56,500 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:56,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:56,584 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:56,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:56,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1007690196, now seen corresponding path program 1 times [2021-12-28 09:41:56,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:56,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991700925] [2021-12-28 09:41:56,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:56,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:56,623 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:56,633 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:56,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:56,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1947924693, now seen corresponding path program 1 times [2021-12-28 09:41:56,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:56,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819251585] [2021-12-28 09:41:56,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:56,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:41:56,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:41:56,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:41:56,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819251585] [2021-12-28 09:41:56,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819251585] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:41:56,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:41:56,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:41:56,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423691552] [2021-12-28 09:41:56,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:41:57,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:41:57,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 09:41:57,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 09:41:57,026 INFO L87 Difference]: Start difference. First operand has 119 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 118 states have internal predecessors, (162), 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 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:41:57,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:41:57,132 INFO L93 Difference]: Finished difference Result 297 states and 384 transitions. [2021-12-28 09:41:57,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 09:41:57,137 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 297 states and 384 transitions. [2021-12-28 09:41:57,151 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 189 [2021-12-28 09:41:57,157 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 297 states to 267 states and 354 transitions. [2021-12-28 09:41:57,159 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 267 [2021-12-28 09:41:57,161 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 267 [2021-12-28 09:41:57,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 267 states and 354 transitions. [2021-12-28 09:41:57,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:41:57,166 INFO L681 BuchiCegarLoop]: Abstraction has 267 states and 354 transitions. [2021-12-28 09:41:57,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states and 354 transitions. [2021-12-28 09:41:57,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 167. [2021-12-28 09:41:57,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 167 states have (on average 1.3233532934131738) internal successors, (221), 166 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:41:57,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 221 transitions. [2021-12-28 09:41:57,204 INFO L704 BuchiCegarLoop]: Abstraction has 167 states and 221 transitions. [2021-12-28 09:41:57,205 INFO L587 BuchiCegarLoop]: Abstraction has 167 states and 221 transitions. [2021-12-28 09:41:57,205 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:41:57,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 221 transitions. [2021-12-28 09:41:57,206 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 118 [2021-12-28 09:41:57,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:41:57,206 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:41:57,207 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:57,207 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] [2021-12-28 09:41:57,207 INFO L791 eck$LassoCheckResult]: Stem: 539#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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 491#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 492#L553 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 480#L546 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 481#L561 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 523#L151 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 500#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 501#L914 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 476#L577-2 [2021-12-28 09:41:57,207 INFO L793 eck$LassoCheckResult]: Loop: 476#L577-2 assume !false; 477#L578 assume test_~splverifierCounter~0#1 < 4; 454#L579 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 455#L587 assume !(0 != test_~tmp~4#1); 489#L587-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 514#L597 assume !(0 != test_~tmp___0~0#1); 499#L597-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 473#L607 assume 0 != test_~tmp___2~0#1; 474#L613-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 494#L833 __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 495#L924 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 484#L748 assume !(0 != ~pumpRunning~0); 434#L748-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 435#L780 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 436#L772-1 assume { :end_inline_processEnvironment__wrappee__base } true; 439#L780-1 assume { :end_inline_processEnvironment } true; 440#L755-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 445#L714 __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 446#L935 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 526#L935-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 531#L765 assume { :end_inline_timeShift } true; 476#L577-2 [2021-12-28 09:41:57,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:57,208 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-28 09:41:57,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:57,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117548948] [2021-12-28 09:41:57,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:57,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:57,218 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:57,227 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:57,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:57,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1368195016, now seen corresponding path program 1 times [2021-12-28 09:41:57,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:57,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939049932] [2021-12-28 09:41:57,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:57,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:41:57,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:41:57,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:41:57,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939049932] [2021-12-28 09:41:57,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939049932] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:41:57,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:41:57,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 09:41:57,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155032329] [2021-12-28 09:41:57,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:41:57,241 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-28 09:41:57,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:41:57,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 09:41:57,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 09:41:57,242 INFO L87 Difference]: Start difference. First operand 167 states and 221 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:41:57,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:41:57,278 INFO L93 Difference]: Finished difference Result 223 states and 284 transitions. [2021-12-28 09:41:57,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 09:41:57,279 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223 states and 284 transitions. [2021-12-28 09:41:57,280 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 161 [2021-12-28 09:41:57,282 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223 states to 223 states and 284 transitions. [2021-12-28 09:41:57,282 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 223 [2021-12-28 09:41:57,282 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 223 [2021-12-28 09:41:57,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 223 states and 284 transitions. [2021-12-28 09:41:57,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:41:57,283 INFO L681 BuchiCegarLoop]: Abstraction has 223 states and 284 transitions. [2021-12-28 09:41:57,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states and 284 transitions. [2021-12-28 09:41:57,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2021-12-28 09:41:57,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 223 states have (on average 1.2735426008968609) internal successors, (284), 222 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:41:57,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 284 transitions. [2021-12-28 09:41:57,289 INFO L704 BuchiCegarLoop]: Abstraction has 223 states and 284 transitions. [2021-12-28 09:41:57,289 INFO L587 BuchiCegarLoop]: Abstraction has 223 states and 284 transitions. [2021-12-28 09:41:57,289 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:41:57,289 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 223 states and 284 transitions. [2021-12-28 09:41:57,290 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 161 [2021-12-28 09:41:57,291 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:41:57,291 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:41:57,291 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:57,291 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] [2021-12-28 09:41:57,292 INFO L791 eck$LassoCheckResult]: Stem: 951#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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 887#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 888#L553 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 877#L546 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 878#L561 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 924#L151 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 898#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 899#L914 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 934#L577-2 [2021-12-28 09:41:57,292 INFO L793 eck$LassoCheckResult]: Loop: 934#L577-2 assume !false; 1031#L578 assume test_~splverifierCounter~0#1 < 4; 848#L579 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 849#L587 assume !(0 != test_~tmp~4#1); 885#L587-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 912#L597 assume !(0 != test_~tmp___0~0#1); 897#L597-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 870#L607 assume 0 != test_~tmp___2~0#1; 871#L613-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 891#L833 __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 892#L924 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 881#L748 assume !(0 != ~pumpRunning~0); 830#L748-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 831#L780 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 832#L722 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 852#L727 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 853#L882 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 886#L882-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 857#L888 processEnvironment_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; 858#L784 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 833#L772 assume { :end_inline_processEnvironment__wrappee__base } true; 834#L780-1 assume { :end_inline_processEnvironment } true; 835#L755-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 840#L714 __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 841#L935 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 1033#L935-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1032#L765 assume { :end_inline_timeShift } true; 934#L577-2 [2021-12-28 09:41:57,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:57,293 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-28 09:41:57,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:57,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18282425] [2021-12-28 09:41:57,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:57,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:57,300 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:57,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:57,306 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:57,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:57,307 INFO L85 PathProgramCache]: Analyzing trace with hash -926749152, now seen corresponding path program 1 times [2021-12-28 09:41:57,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:57,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001281033] [2021-12-28 09:41:57,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:57,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:41:57,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:41:57,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:41:57,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001281033] [2021-12-28 09:41:57,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001281033] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:41:57,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:41:57,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:41:57,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129051893] [2021-12-28 09:41:57,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:41:57,339 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-28 09:41:57,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:41:57,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 09:41:57,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 09:41:57,340 INFO L87 Difference]: Start difference. First operand 223 states and 284 transitions. cyclomatic complexity: 64 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:41:57,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:41:57,445 INFO L93 Difference]: Finished difference Result 832 states and 1048 transitions. [2021-12-28 09:41:57,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 09:41:57,446 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 832 states and 1048 transitions. [2021-12-28 09:41:57,450 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 595 [2021-12-28 09:41:57,460 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 832 states to 832 states and 1048 transitions. [2021-12-28 09:41:57,461 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 832 [2021-12-28 09:41:57,461 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 832 [2021-12-28 09:41:57,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 832 states and 1048 transitions. [2021-12-28 09:41:57,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:41:57,462 INFO L681 BuchiCegarLoop]: Abstraction has 832 states and 1048 transitions. [2021-12-28 09:41:57,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states and 1048 transitions. [2021-12-28 09:41:57,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 435. [2021-12-28 09:41:57,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 435 states have (on average 1.2528735632183907) internal successors, (545), 434 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) [2021-12-28 09:41:57,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 545 transitions. [2021-12-28 09:41:57,472 INFO L704 BuchiCegarLoop]: Abstraction has 435 states and 545 transitions. [2021-12-28 09:41:57,472 INFO L587 BuchiCegarLoop]: Abstraction has 435 states and 545 transitions. [2021-12-28 09:41:57,472 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-28 09:41:57,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 435 states and 545 transitions. [2021-12-28 09:41:57,474 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 320 [2021-12-28 09:41:57,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:41:57,474 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:41:57,474 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:57,475 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] [2021-12-28 09:41:57,475 INFO L791 eck$LassoCheckResult]: Stem: 2040#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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 1964#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1965#L553 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1953#L546 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1954#L561 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 2002#L151 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1974#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1975#L914 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1949#L577-2 [2021-12-28 09:41:57,475 INFO L793 eck$LassoCheckResult]: Loop: 1949#L577-2 assume !false; 1950#L578 assume test_~splverifierCounter~0#1 < 4; 1966#L579 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 2305#L587 assume !(0 != test_~tmp~4#1); 2303#L587-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 2301#L597 assume !(0 != test_~tmp___0~0#1); 2299#L597-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 2295#L607 assume 0 != test_~tmp___2~0#1; 2282#L613-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 2265#L833 __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 2264#L924 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2247#L748 assume !(0 != ~pumpRunning~0); 1904#L748-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1905#L780 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1906#L722 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1928#L727 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 1929#L882 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1963#L882-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 1933#L888 processEnvironment_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; 1934#L784 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2039#L772 assume { :end_inline_processEnvironment__wrappee__base } true; 2308#L780-1 assume { :end_inline_processEnvironment } true; 2245#L755-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 2246#L714 __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 2006#L935 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 2007#L833-1 __utac_acc__Specification5_spec__3_#t~ret51#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 2049#L939 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 2028#L935-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2029#L765 assume { :end_inline_timeShift } true; 1949#L577-2 [2021-12-28 09:41:57,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:57,476 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2021-12-28 09:41:57,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:57,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247878644] [2021-12-28 09:41:57,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:57,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:57,482 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:57,487 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:57,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:57,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1566802949, now seen corresponding path program 1 times [2021-12-28 09:41:57,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:57,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732151663] [2021-12-28 09:41:57,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:57,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:57,492 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:57,496 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:57,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:57,497 INFO L85 PathProgramCache]: Analyzing trace with hash -660386382, now seen corresponding path program 1 times [2021-12-28 09:41:57,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:57,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115049509] [2021-12-28 09:41:57,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:57,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:57,504 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:57,513 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:42:00,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:42:00 BoogieIcfgContainer [2021-12-28 09:42:00,210 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:42:00,211 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:42:00,211 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:42:00,211 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:42:00,212 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:41:56" (3/4) ... [2021-12-28 09:42:00,214 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:42:00,274 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:42:00,274 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:42:00,275 INFO L158 Benchmark]: Toolchain (without parser) took 4957.38ms. Allocated memory was 52.4MB in the beginning and 138.4MB in the end (delta: 86.0MB). Free memory was 28.5MB in the beginning and 64.3MB in the end (delta: -35.8MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2021-12-28 09:42:00,275 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory was 33.7MB in the beginning and 33.6MB in the end (delta: 36.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:42:00,275 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.39ms. Allocated memory was 52.4MB in the beginning and 77.6MB in the end (delta: 25.2MB). Free memory was 28.3MB in the beginning and 52.1MB in the end (delta: -23.7MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2021-12-28 09:42:00,283 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.73ms. Allocated memory is still 77.6MB. Free memory was 52.1MB in the beginning and 49.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 09:42:00,284 INFO L158 Benchmark]: Boogie Preprocessor took 38.39ms. Allocated memory is still 77.6MB. Free memory was 49.2MB in the beginning and 47.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:42:00,284 INFO L158 Benchmark]: RCFGBuilder took 397.47ms. Allocated memory is still 77.6MB. Free memory was 47.1MB in the beginning and 51.5MB in the end (delta: -4.5MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2021-12-28 09:42:00,284 INFO L158 Benchmark]: BuchiAutomizer took 3992.67ms. Allocated memory was 77.6MB in the beginning and 138.4MB in the end (delta: 60.8MB). Free memory was 51.5MB in the beginning and 67.4MB in the end (delta: -15.8MB). Peak memory consumption was 68.0MB. Max. memory is 16.1GB. [2021-12-28 09:42:00,284 INFO L158 Benchmark]: Witness Printer took 63.16ms. Allocated memory is still 138.4MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:42:00,285 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory was 33.7MB in the beginning and 33.6MB in the end (delta: 36.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.39ms. Allocated memory was 52.4MB in the beginning and 77.6MB in the end (delta: 25.2MB). Free memory was 28.3MB in the beginning and 52.1MB in the end (delta: -23.7MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.73ms. Allocated memory is still 77.6MB. Free memory was 52.1MB in the beginning and 49.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.39ms. Allocated memory is still 77.6MB. Free memory was 49.2MB in the beginning and 47.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 397.47ms. Allocated memory is still 77.6MB. Free memory was 47.1MB in the beginning and 51.5MB in the end (delta: -4.5MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3992.67ms. Allocated memory was 77.6MB in the beginning and 138.4MB in the end (delta: 60.8MB). Free memory was 51.5MB in the beginning and 67.4MB in the end (delta: -15.8MB). Peak memory consumption was 68.0MB. Max. memory is 16.1GB. * Witness Printer took 63.16ms. Allocated memory is still 138.4MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 435 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 497 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 435 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1405 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1405 mSDsluCounter, 1873 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1379 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 164 IncrementalHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 494 mSDtfsCounter, 164 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 577]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@712dc5ed=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f5cb091=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9076236=29, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b7ed5c7=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bc39737=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36c1201c=0, methaneLevelCritical=0, retValue_acc=0, retValue_acc=1, retValue_acc=0, \result=1, \result=1, retValue_acc=1, retValue_acc=0, tmp=1, tmp=1, tmp___2=29, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=1, \result=0, tmp___0=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a88e44d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@757cd7b0=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@613db486=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6588d15c=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 577]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L59] int cleanupTimeShifts = 4; [L334] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L639] int waterLevel = 1; [L640] int methaneLevelCritical = 0; [L736] int pumpRunning = 0; [L737] int systemActive = 1; [L908] int switchedOnBeforeTS ; [L142] int retValue_acc ; [L143] int tmp ; [L147] FCALL select_helpers() [L148] FCALL select_features() [L149] CALL, EXPR valid_product() [L557] int retValue_acc ; [L560] retValue_acc = 1 [L561] return (retValue_acc); [L149] RET, EXPR valid_product() [L149] tmp = valid_product() [L151] COND TRUE \read(tmp) [L153] FCALL setup() [L154] CALL runTest() [L132] CALL __utac_acc__Specification5_spec__1() [L913] switchedOnBeforeTS = 0 [L132] RET __utac_acc__Specification5_spec__1() [L133] CALL test() [L568] int splverifierCounter ; [L569] int tmp ; [L570] int tmp___0 ; [L571] int tmp___1 ; [L572] int tmp___2 ; [L575] splverifierCounter = 0 Loop: [L577] COND TRUE 1 [L579] COND TRUE splverifierCounter < 4 [L585] tmp = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp)) [L595] tmp___0 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___0)) [L605] tmp___2 = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp___2) [L622] CALL timeShift() [L746] CALL __utac_acc__Specification5_spec__2() [L922] CALL, EXPR isPumpRunning() [L829] int retValue_acc ; [L832] retValue_acc = pumpRunning [L833] return (retValue_acc); [L922] RET, EXPR isPumpRunning() [L922] switchedOnBeforeTS = isPumpRunning() [L746] RET __utac_acc__Specification5_spec__2() [L748] COND FALSE !(\read(pumpRunning)) [L755] COND TRUE \read(systemActive) [L757] CALL processEnvironment() [L777] int tmp ; [L780] COND TRUE ! pumpRunning [L782] CALL, EXPR isHighWaterLevel() [L874] int retValue_acc ; [L875] int tmp ; [L876] int tmp___0 ; [L880] CALL, EXPR isHighWaterSensorDry() [L719] int retValue_acc ; [L722] COND TRUE waterLevel < 2 [L723] retValue_acc = 1 [L724] return (retValue_acc); [L880] RET, EXPR isHighWaterSensorDry() [L880] tmp = isHighWaterSensorDry() [L882] COND TRUE \read(tmp) [L883] tmp___0 = 0 [L887] retValue_acc = tmp___0 [L888] return (retValue_acc); [L782] RET, EXPR isHighWaterLevel() [L782] tmp = isHighWaterLevel() [L784] COND FALSE !(\read(tmp)) [L790] FCALL processEnvironment__wrappee__base() [L757] RET processEnvironment() [L763] CALL __utac_acc__Specification5_spec__3() [L928] int tmp ; [L929] int tmp___0 ; [L933] CALL, EXPR getWaterLevel() [L710] int retValue_acc ; [L713] retValue_acc = waterLevel [L714] return (retValue_acc); [L933] RET, EXPR getWaterLevel() [L933] tmp = getWaterLevel() [L935] COND TRUE tmp != 2 [L937] CALL, EXPR isPumpRunning() [L829] int retValue_acc ; [L832] retValue_acc = pumpRunning [L833] return (retValue_acc); [L937] RET, EXPR isPumpRunning() [L937] tmp___0 = isPumpRunning() [L939] COND FALSE !(\read(tmp___0)) [L763] RET __utac_acc__Specification5_spec__3() [L622] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-28 09:42:00,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)