./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product59.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 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:19,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:19,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:19,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:19,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:19,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:19,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:19,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:19,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:19,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:19,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:19,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:19,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:19,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:19,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:19,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:19,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:19,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:19,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:19,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:19,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:19,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:19,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:19,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:19,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:19,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:19,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:19,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:19,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:19,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:19,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:19,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:19,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:19,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:19,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:19,117 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:19,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:19,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:19,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:19,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:19,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:19,120 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:19,142 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:19,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:19,144 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:19,144 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:19,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:19,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:19,147 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:19,147 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:19,147 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:19,147 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:19,148 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:19,148 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:19,148 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:19,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:19,149 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:19,149 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:19,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:19,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:19,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:19,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:19,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:19,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:19,150 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:19,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:19,151 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:19,151 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:19,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:19,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:19,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:19,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:19,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:19,153 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:19,153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 [2022-02-21 04:17:19,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:19,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:19,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:19,491 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:19,491 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:19,492 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2022-02-21 04:17:19,556 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/094c88043/1990773020014331800adc5f1af34a93/FLAGe7e1abc87 [2022-02-21 04:17:19,916 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:19,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2022-02-21 04:17:19,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/094c88043/1990773020014331800adc5f1af34a93/FLAGe7e1abc87 [2022-02-21 04:17:20,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/094c88043/1990773020014331800adc5f1af34a93 [2022-02-21 04:17:20,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:20,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:20,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:20,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:20,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:20,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:20" (1/1) ... [2022-02-21 04:17:20,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e2d264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:20, skipping insertion in model container [2022-02-21 04:17:20,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:20" (1/1) ... [2022-02-21 04:17:20,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:20,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:20,847 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[15143,15156] [2022-02-21 04:17:20,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:20,908 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:21,012 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[15143,15156] [2022-02-21 04:17:21,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:21,064 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:21,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:21 WrapperNode [2022-02-21 04:17:21,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:21,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:21,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:21,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:21,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:21" (1/1) ... [2022-02-21 04:17:21,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:21" (1/1) ... [2022-02-21 04:17:21,200 INFO L137 Inliner]: procedures = 57, calls = 159, calls flagged for inlining = 56, calls inlined = 100, statements flattened = 765 [2022-02-21 04:17:21,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:21,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:21,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:21,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:21,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:21" (1/1) ... [2022-02-21 04:17:21,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:21" (1/1) ... [2022-02-21 04:17:21,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:21" (1/1) ... [2022-02-21 04:17:21,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:21" (1/1) ... [2022-02-21 04:17:21,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:21" (1/1) ... [2022-02-21 04:17:21,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:21" (1/1) ... [2022-02-21 04:17:21,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:21" (1/1) ... [2022-02-21 04:17:21,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:21,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:21,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:21,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:21,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:21" (1/1) ... [2022-02-21 04:17:21,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:21,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:21,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:17:21,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:17:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:21,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:21,489 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:21,491 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:21,988 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:21,994 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:21,994 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:21,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:21 BoogieIcfgContainer [2022-02-21 04:17:21,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:21,997 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:21,997 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:21,999 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:22,000 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:22,000 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:20" (1/3) ... [2022-02-21 04:17:22,015 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4de9f76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:22, skipping insertion in model container [2022-02-21 04:17:22,015 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:22,016 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:21" (2/3) ... [2022-02-21 04:17:22,016 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4de9f76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:22, skipping insertion in model container [2022-02-21 04:17:22,016 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:22,016 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:21" (3/3) ... [2022-02-21 04:17:22,017 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2022-02-21 04:17:22,056 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:22,056 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:22,057 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:22,057 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:22,057 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:22,057 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:22,057 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:22,057 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:22,085 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 196 states, 195 states have (on average 1.3641025641025641) internal successors, (266), 195 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:22,142 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2022-02-21 04:17:22,142 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:22,142 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:22,148 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:22,148 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:22,148 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:22,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 196 states, 195 states have (on average 1.3641025641025641) internal successors, (266), 195 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:22,162 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2022-02-21 04:17:22,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:22,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:22,163 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:22,163 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:22,167 INFO L791 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 137#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 187#L651true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 181#L644true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 132#L659true main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 116#L615true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 84#L588true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 185#L720-2true [2022-02-21 04:17:22,167 INFO L793 eck$LassoCheckResult]: Loop: 185#L720-2true assume !false; 77#L721true assume test_~splverifierCounter~0#1 < 4; 61#L722true test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 56#L730true assume !(0 != test_~tmp~5#1); 145#L730-2true test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 142#L740true assume !(0 != test_~tmp___0~1#1); 30#L740-2true test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 179#L750true assume 0 != test_~tmp___2~0#1; 152#L756-2true assume { :begin_inline_timeShift } true; 13#L786true assume !(0 != ~pumpRunning~0); 140#L786-2true assume !(0 != ~systemActive~0); 26#L793-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 94#L467-2true __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 63#L675true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 98#L681-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 18#L803true assume { :end_inline_timeShift } true; 185#L720-2true [2022-02-21 04:17:22,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:22,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:22,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:22,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945881301] [2022-02-21 04:17:22,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:22,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:22,258 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:22,293 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:22,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:22,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1086879670, now seen corresponding path program 1 times [2022-02-21 04:17:22,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:22,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115628362] [2022-02-21 04:17:22,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:22,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:22,301 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:22,307 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:22,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:22,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1852668550, now seen corresponding path program 1 times [2022-02-21 04:17:22,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:22,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240064949] [2022-02-21 04:17:22,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:22,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:22,402 INFO L290 TraceCheckUtils]: 0: Hoare triple {204#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; {206#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:22,402 INFO L290 TraceCheckUtils]: 1: Hoare triple {206#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; {206#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:22,403 INFO L290 TraceCheckUtils]: 2: Hoare triple {206#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {206#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:22,403 INFO L290 TraceCheckUtils]: 3: Hoare triple {206#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; {207#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:17:22,403 INFO L290 TraceCheckUtils]: 4: Hoare triple {207#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; {208#(= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0)} is VALID [2022-02-21 04:17:22,404 INFO L290 TraceCheckUtils]: 5: Hoare triple {208#(= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0)} assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; {209#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:22,404 INFO L290 TraceCheckUtils]: 6: Hoare triple {209#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {209#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:22,405 INFO L290 TraceCheckUtils]: 7: Hoare triple {209#(not (= 0 ~systemActive~0))} assume !false; {209#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:22,405 INFO L290 TraceCheckUtils]: 8: Hoare triple {209#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {209#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:22,405 INFO L290 TraceCheckUtils]: 9: Hoare triple {209#(not (= 0 ~systemActive~0))} test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {209#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:22,406 INFO L290 TraceCheckUtils]: 10: Hoare triple {209#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~5#1); {209#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:22,406 INFO L290 TraceCheckUtils]: 11: Hoare triple {209#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {209#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:22,407 INFO L290 TraceCheckUtils]: 12: Hoare triple {209#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {209#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:22,407 INFO L290 TraceCheckUtils]: 13: Hoare triple {209#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {209#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:22,407 INFO L290 TraceCheckUtils]: 14: Hoare triple {209#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {209#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:22,408 INFO L290 TraceCheckUtils]: 15: Hoare triple {209#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {209#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:22,408 INFO L290 TraceCheckUtils]: 16: Hoare triple {209#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {209#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:22,408 INFO L290 TraceCheckUtils]: 17: Hoare triple {209#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {205#false} is VALID [2022-02-21 04:17:22,409 INFO L290 TraceCheckUtils]: 18: Hoare triple {205#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {205#false} is VALID [2022-02-21 04:17:22,409 INFO L290 TraceCheckUtils]: 19: Hoare triple {205#false} __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; {205#false} is VALID [2022-02-21 04:17:22,409 INFO L290 TraceCheckUtils]: 20: Hoare triple {205#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; {205#false} is VALID [2022-02-21 04:17:22,409 INFO L290 TraceCheckUtils]: 21: Hoare triple {205#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {205#false} is VALID [2022-02-21 04:17:22,409 INFO L290 TraceCheckUtils]: 22: Hoare triple {205#false} assume { :end_inline_timeShift } true; {205#false} is VALID [2022-02-21 04:17:22,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:17:22,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:22,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240064949] [2022-02-21 04:17:22,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240064949] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:22,424 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:22,424 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:22,424 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683190023] [2022-02-21 04:17:22,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:22,508 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:22,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:17:22,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:17:22,527 INFO L87 Difference]: Start difference. First operand has 196 states, 195 states have (on average 1.3641025641025641) internal successors, (266), 195 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:23,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:23,370 INFO L93 Difference]: Finished difference Result 449 states and 590 transitions. [2022-02-21 04:17:23,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:17:23,371 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:23,392 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:23,398 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 449 states and 590 transitions. [2022-02-21 04:17:23,421 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 291 [2022-02-21 04:17:23,437 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 449 states to 419 states and 560 transitions. [2022-02-21 04:17:23,438 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 419 [2022-02-21 04:17:23,439 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 419 [2022-02-21 04:17:23,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 419 states and 560 transitions. [2022-02-21 04:17:23,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:23,446 INFO L681 BuchiCegarLoop]: Abstraction has 419 states and 560 transitions. [2022-02-21 04:17:23,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states and 560 transitions. [2022-02-21 04:17:23,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 241. [2022-02-21 04:17:23,486 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:23,490 INFO L82 GeneralOperation]: Start isEquivalent. First operand 419 states and 560 transitions. Second operand has 241 states, 241 states have (on average 1.3360995850622406) internal successors, (322), 240 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:23,491 INFO L74 IsIncluded]: Start isIncluded. First operand 419 states and 560 transitions. Second operand has 241 states, 241 states have (on average 1.3360995850622406) internal successors, (322), 240 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:23,492 INFO L87 Difference]: Start difference. First operand 419 states and 560 transitions. Second operand has 241 states, 241 states have (on average 1.3360995850622406) internal successors, (322), 240 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:23,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:23,514 INFO L93 Difference]: Finished difference Result 419 states and 560 transitions. [2022-02-21 04:17:23,514 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 560 transitions. [2022-02-21 04:17:23,522 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:23,522 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:23,523 INFO L74 IsIncluded]: Start isIncluded. First operand has 241 states, 241 states have (on average 1.3360995850622406) internal successors, (322), 240 states have internal predecessors, (322), 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 419 states and 560 transitions. [2022-02-21 04:17:23,524 INFO L87 Difference]: Start difference. First operand has 241 states, 241 states have (on average 1.3360995850622406) internal successors, (322), 240 states have internal predecessors, (322), 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 419 states and 560 transitions. [2022-02-21 04:17:23,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:23,537 INFO L93 Difference]: Finished difference Result 419 states and 560 transitions. [2022-02-21 04:17:23,537 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 560 transitions. [2022-02-21 04:17:23,537 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:23,538 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:23,538 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:23,538 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:23,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 241 states have (on average 1.3360995850622406) internal successors, (322), 240 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:23,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 322 transitions. [2022-02-21 04:17:23,545 INFO L704 BuchiCegarLoop]: Abstraction has 241 states and 322 transitions. [2022-02-21 04:17:23,545 INFO L587 BuchiCegarLoop]: Abstraction has 241 states and 322 transitions. [2022-02-21 04:17:23,545 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:23,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 241 states and 322 transitions. [2022-02-21 04:17:23,547 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2022-02-21 04:17:23,547 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:23,547 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:23,548 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:23,548 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:23,548 INFO L791 eck$LassoCheckResult]: Stem: 846#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 772#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 773#L651 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 845#L644 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 754#L659 main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 683#L615 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 684#L588 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 723#L720-2 [2022-02-21 04:17:23,549 INFO L793 eck$LassoCheckResult]: Loop: 723#L720-2 assume !false; 831#L721 assume test_~splverifierCounter~0#1 < 4; 812#L722 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 803#L730 assume !(0 != test_~tmp~5#1); 791#L730-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 785#L740 assume !(0 != test_~tmp___0~1#1); 710#L740-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 759#L750 assume 0 != test_~tmp___2~0#1; 808#L756-2 assume { :begin_inline_timeShift } true; 704#L786 assume !(0 != ~pumpRunning~0); 705#L786-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 779#L844 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 755#L818-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 756#L810-3 assume { :end_inline_processEnvironment__wrappee__base } true; 727#L818-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 810#L844-1 assume { :end_inline_processEnvironment } true; 746#L793-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 747#L467-2 __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 819#L675 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 813#L681-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 722#L803 assume { :end_inline_timeShift } true; 723#L720-2 [2022-02-21 04:17:23,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:23,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:23,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:23,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987371977] [2022-02-21 04:17:23,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:23,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:23,580 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:23,605 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:23,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:23,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1122641260, now seen corresponding path program 1 times [2022-02-21 04:17:23,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:23,606 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781703737] [2022-02-21 04:17:23,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:23,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:23,631 INFO L290 TraceCheckUtils]: 0: Hoare triple {1747#true} assume !false; {1747#true} is VALID [2022-02-21 04:17:23,632 INFO L290 TraceCheckUtils]: 1: Hoare triple {1747#true} assume test_~splverifierCounter~0#1 < 4; {1747#true} is VALID [2022-02-21 04:17:23,632 INFO L290 TraceCheckUtils]: 2: Hoare triple {1747#true} test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {1747#true} is VALID [2022-02-21 04:17:23,632 INFO L290 TraceCheckUtils]: 3: Hoare triple {1747#true} assume !(0 != test_~tmp~5#1); {1747#true} is VALID [2022-02-21 04:17:23,632 INFO L290 TraceCheckUtils]: 4: Hoare triple {1747#true} test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {1747#true} is VALID [2022-02-21 04:17:23,632 INFO L290 TraceCheckUtils]: 5: Hoare triple {1747#true} assume !(0 != test_~tmp___0~1#1); {1747#true} is VALID [2022-02-21 04:17:23,632 INFO L290 TraceCheckUtils]: 6: Hoare triple {1747#true} test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {1747#true} is VALID [2022-02-21 04:17:23,632 INFO L290 TraceCheckUtils]: 7: Hoare triple {1747#true} assume 0 != test_~tmp___2~0#1; {1747#true} is VALID [2022-02-21 04:17:23,632 INFO L290 TraceCheckUtils]: 8: Hoare triple {1747#true} assume { :begin_inline_timeShift } true; {1747#true} is VALID [2022-02-21 04:17:23,633 INFO L290 TraceCheckUtils]: 9: Hoare triple {1747#true} assume !(0 != ~pumpRunning~0); {1749#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:23,633 INFO L290 TraceCheckUtils]: 10: Hoare triple {1749#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; {1749#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:23,633 INFO L290 TraceCheckUtils]: 11: Hoare triple {1749#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; {1749#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:23,634 INFO L290 TraceCheckUtils]: 12: Hoare triple {1749#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1748#false} is VALID [2022-02-21 04:17:23,634 INFO L290 TraceCheckUtils]: 13: Hoare triple {1748#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1748#false} is VALID [2022-02-21 04:17:23,634 INFO L290 TraceCheckUtils]: 14: Hoare triple {1748#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1748#false} is VALID [2022-02-21 04:17:23,634 INFO L290 TraceCheckUtils]: 15: Hoare triple {1748#false} assume { :end_inline_processEnvironment } true; {1748#false} is VALID [2022-02-21 04:17:23,634 INFO L290 TraceCheckUtils]: 16: Hoare triple {1748#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {1748#false} is VALID [2022-02-21 04:17:23,634 INFO L290 TraceCheckUtils]: 17: Hoare triple {1748#false} __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; {1748#false} is VALID [2022-02-21 04:17:23,634 INFO L290 TraceCheckUtils]: 18: Hoare triple {1748#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; {1748#false} is VALID [2022-02-21 04:17:23,634 INFO L290 TraceCheckUtils]: 19: Hoare triple {1748#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {1748#false} is VALID [2022-02-21 04:17:23,635 INFO L290 TraceCheckUtils]: 20: Hoare triple {1748#false} assume { :end_inline_timeShift } true; {1748#false} is VALID [2022-02-21 04:17:23,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:17:23,635 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:23,635 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781703737] [2022-02-21 04:17:23,635 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781703737] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:23,635 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:23,635 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:23,635 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480587348] [2022-02-21 04:17:23,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:23,636 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:23,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:23,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:23,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:23,636 INFO L87 Difference]: Start difference. First operand 241 states and 322 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:23,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:23,865 INFO L93 Difference]: Finished difference Result 303 states and 388 transitions. [2022-02-21 04:17:23,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:23,865 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:23,890 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:23,890 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 303 states and 388 transitions. [2022-02-21 04:17:23,897 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2022-02-21 04:17:23,903 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 303 states to 303 states and 388 transitions. [2022-02-21 04:17:23,903 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 303 [2022-02-21 04:17:23,903 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 303 [2022-02-21 04:17:23,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 303 states and 388 transitions. [2022-02-21 04:17:23,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:23,903 INFO L681 BuchiCegarLoop]: Abstraction has 303 states and 388 transitions. [2022-02-21 04:17:23,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states and 388 transitions. [2022-02-21 04:17:23,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2022-02-21 04:17:23,908 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:23,909 INFO L82 GeneralOperation]: Start isEquivalent. First operand 303 states and 388 transitions. Second operand has 303 states, 303 states have (on average 1.2805280528052805) internal successors, (388), 302 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:23,909 INFO L74 IsIncluded]: Start isIncluded. First operand 303 states and 388 transitions. Second operand has 303 states, 303 states have (on average 1.2805280528052805) internal successors, (388), 302 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:23,910 INFO L87 Difference]: Start difference. First operand 303 states and 388 transitions. Second operand has 303 states, 303 states have (on average 1.2805280528052805) internal successors, (388), 302 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:23,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:23,915 INFO L93 Difference]: Finished difference Result 303 states and 388 transitions. [2022-02-21 04:17:23,915 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 388 transitions. [2022-02-21 04:17:23,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:23,916 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:23,917 INFO L74 IsIncluded]: Start isIncluded. First operand has 303 states, 303 states have (on average 1.2805280528052805) internal successors, (388), 302 states have internal predecessors, (388), 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 303 states and 388 transitions. [2022-02-21 04:17:23,917 INFO L87 Difference]: Start difference. First operand has 303 states, 303 states have (on average 1.2805280528052805) internal successors, (388), 302 states have internal predecessors, (388), 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 303 states and 388 transitions. [2022-02-21 04:17:23,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:23,923 INFO L93 Difference]: Finished difference Result 303 states and 388 transitions. [2022-02-21 04:17:23,923 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 388 transitions. [2022-02-21 04:17:23,923 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:23,923 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:23,924 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:23,924 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:23,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 303 states have (on average 1.2805280528052805) internal successors, (388), 302 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:23,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 388 transitions. [2022-02-21 04:17:23,930 INFO L704 BuchiCegarLoop]: Abstraction has 303 states and 388 transitions. [2022-02-21 04:17:23,930 INFO L587 BuchiCegarLoop]: Abstraction has 303 states and 388 transitions. [2022-02-21 04:17:23,930 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:23,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 303 states and 388 transitions. [2022-02-21 04:17:23,931 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2022-02-21 04:17:23,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:23,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:23,932 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:23,932 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:23,932 INFO L791 eck$LassoCheckResult]: Stem: 2255#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 2160#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 2161#L651 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2251#L644 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 2140#L659 main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 2071#L615 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 2072#L588 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2108#L720-2 [2022-02-21 04:17:23,934 INFO L793 eck$LassoCheckResult]: Loop: 2108#L720-2 assume !false; 2230#L721 assume test_~splverifierCounter~0#1 < 4; 2231#L722 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 2329#L730 assume !(0 != test_~tmp~5#1); 2327#L730-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 2174#L740 assume !(0 != test_~tmp___0~1#1); 2098#L740-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 2145#L750 assume 0 != test_~tmp___2~0#1; 2319#L756-2 assume { :begin_inline_timeShift } true; 2092#L786 assume !(0 != ~pumpRunning~0); 2093#L786-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 2167#L844 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 2141#L818-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 2103#L507-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 2104#L512-1 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 2154#L964-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2069#L964-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 2070#L970-1 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 2159#L822-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2112#L810-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2113#L818-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2204#L844-1 assume { :end_inline_processEnvironment } true; 2205#L793-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 2336#L467-2 __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 2332#L675 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 2253#L681-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2107#L803 assume { :end_inline_timeShift } true; 2108#L720-2 [2022-02-21 04:17:23,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:23,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:23,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:23,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740560352] [2022-02-21 04:17:23,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:23,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:23,945 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:23,956 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:23,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:23,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1041193540, now seen corresponding path program 1 times [2022-02-21 04:17:23,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:23,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641390117] [2022-02-21 04:17:23,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:23,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:23,962 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:23,967 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:23,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:23,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1416481280, now seen corresponding path program 1 times [2022-02-21 04:17:23,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:23,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162183147] [2022-02-21 04:17:23,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:23,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:24,018 INFO L290 TraceCheckUtils]: 0: Hoare triple {2969#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,018 INFO L290 TraceCheckUtils]: 1: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,019 INFO L290 TraceCheckUtils]: 2: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,019 INFO L290 TraceCheckUtils]: 3: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,019 INFO L290 TraceCheckUtils]: 4: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,020 INFO L290 TraceCheckUtils]: 5: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,020 INFO L290 TraceCheckUtils]: 6: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,020 INFO L290 TraceCheckUtils]: 7: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume !false; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,021 INFO L290 TraceCheckUtils]: 8: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,021 INFO L290 TraceCheckUtils]: 9: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,021 INFO L290 TraceCheckUtils]: 10: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~5#1); {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,022 INFO L290 TraceCheckUtils]: 11: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,022 INFO L290 TraceCheckUtils]: 12: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~1#1); {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,022 INFO L290 TraceCheckUtils]: 13: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,023 INFO L290 TraceCheckUtils]: 14: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,023 INFO L290 TraceCheckUtils]: 15: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,023 INFO L290 TraceCheckUtils]: 16: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,024 INFO L290 TraceCheckUtils]: 17: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,024 INFO L290 TraceCheckUtils]: 18: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,024 INFO L290 TraceCheckUtils]: 19: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,025 INFO L290 TraceCheckUtils]: 20: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,025 INFO L290 TraceCheckUtils]: 21: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,025 INFO L290 TraceCheckUtils]: 22: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,026 INFO L290 TraceCheckUtils]: 23: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,026 INFO L290 TraceCheckUtils]: 24: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,026 INFO L290 TraceCheckUtils]: 25: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,027 INFO L290 TraceCheckUtils]: 26: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,027 INFO L290 TraceCheckUtils]: 27: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,027 INFO L290 TraceCheckUtils]: 28: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {2971#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:24,028 INFO L290 TraceCheckUtils]: 29: Hoare triple {2971#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {2972#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:17:24,028 INFO L290 TraceCheckUtils]: 30: Hoare triple {2972#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; {2973#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~4#1| 0)} is VALID [2022-02-21 04:17:24,029 INFO L290 TraceCheckUtils]: 31: Hoare triple {2973#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~4#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; {2970#false} is VALID [2022-02-21 04:17:24,029 INFO L290 TraceCheckUtils]: 32: Hoare triple {2970#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {2970#false} is VALID [2022-02-21 04:17:24,029 INFO L290 TraceCheckUtils]: 33: Hoare triple {2970#false} assume { :end_inline_timeShift } true; {2970#false} is VALID [2022-02-21 04:17:24,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:17:24,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:24,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162183147] [2022-02-21 04:17:24,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162183147] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:24,030 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:24,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:24,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021760610] [2022-02-21 04:17:24,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:24,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:24,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:24,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:24,224 INFO L87 Difference]: Start difference. First operand 303 states and 388 transitions. cyclomatic complexity: 88 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:25,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:25,117 INFO L93 Difference]: Finished difference Result 1077 states and 1372 transitions. [2022-02-21 04:17:25,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:25,118 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:25,141 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:25,141 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1077 states and 1372 transitions. [2022-02-21 04:17:25,179 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 809 [2022-02-21 04:17:25,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1077 states to 1077 states and 1372 transitions. [2022-02-21 04:17:25,211 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1077 [2022-02-21 04:17:25,211 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1077 [2022-02-21 04:17:25,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1077 states and 1372 transitions. [2022-02-21 04:17:25,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:25,213 INFO L681 BuchiCegarLoop]: Abstraction has 1077 states and 1372 transitions. [2022-02-21 04:17:25,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states and 1372 transitions. [2022-02-21 04:17:25,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 599. [2022-02-21 04:17:25,221 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:25,222 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1077 states and 1372 transitions. Second operand has 599 states, 599 states have (on average 1.2637729549248748) internal successors, (757), 598 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:25,223 INFO L74 IsIncluded]: Start isIncluded. First operand 1077 states and 1372 transitions. Second operand has 599 states, 599 states have (on average 1.2637729549248748) internal successors, (757), 598 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:25,223 INFO L87 Difference]: Start difference. First operand 1077 states and 1372 transitions. Second operand has 599 states, 599 states have (on average 1.2637729549248748) internal successors, (757), 598 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:25,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:25,253 INFO L93 Difference]: Finished difference Result 1077 states and 1372 transitions. [2022-02-21 04:17:25,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1372 transitions. [2022-02-21 04:17:25,254 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:25,255 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:25,256 INFO L74 IsIncluded]: Start isIncluded. First operand has 599 states, 599 states have (on average 1.2637729549248748) internal successors, (757), 598 states have internal predecessors, (757), 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 1077 states and 1372 transitions. [2022-02-21 04:17:25,256 INFO L87 Difference]: Start difference. First operand has 599 states, 599 states have (on average 1.2637729549248748) internal successors, (757), 598 states have internal predecessors, (757), 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 1077 states and 1372 transitions. [2022-02-21 04:17:25,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:25,302 INFO L93 Difference]: Finished difference Result 1077 states and 1372 transitions. [2022-02-21 04:17:25,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1372 transitions. [2022-02-21 04:17:25,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:25,303 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:25,303 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:25,303 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:25,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 599 states have (on average 1.2637729549248748) internal successors, (757), 598 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:25,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 757 transitions. [2022-02-21 04:17:25,314 INFO L704 BuchiCegarLoop]: Abstraction has 599 states and 757 transitions. [2022-02-21 04:17:25,314 INFO L587 BuchiCegarLoop]: Abstraction has 599 states and 757 transitions. [2022-02-21 04:17:25,314 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:17:25,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 599 states and 757 transitions. [2022-02-21 04:17:25,316 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 430 [2022-02-21 04:17:25,316 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:25,316 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:25,317 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:25,317 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:25,317 INFO L791 eck$LassoCheckResult]: Stem: 4285#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 4168#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 4169#L651 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4281#L644 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 4147#L659 main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 4078#L615 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 4079#L588 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4261#L720-2 [2022-02-21 04:17:25,318 INFO L793 eck$LassoCheckResult]: Loop: 4261#L720-2 assume !false; 4513#L721 assume test_~splverifierCounter~0#1 < 4; 4514#L722 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 4654#L730 assume !(0 != test_~tmp~5#1); 4652#L730-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 4651#L740 assume !(0 != test_~tmp___0~1#1); 4648#L740-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 4647#L750 assume 0 != test_~tmp___2~0#1; 4217#L756-2 assume { :begin_inline_timeShift } true; 4099#L786 assume !(0 != ~pumpRunning~0); 4100#L786-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 4180#L844 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 4238#L818-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 4343#L507-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 4342#L512-1 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 4341#L964-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 4340#L964-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 4338#L970-1 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 4327#L822-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4119#L810-2 assume { :end_inline_processEnvironment__wrappee__base } true; 4120#L818-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4219#L844-1 assume { :end_inline_processEnvironment } true; 4220#L793-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 4579#L467-2 __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 4575#L675 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 4576#L499 __utac_acc__Specification3_spec__1_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret35#1;havoc __utac_acc__Specification3_spec__1_#t~ret35#1; 4569#L681 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 4568#L681-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 4564#L803 assume { :end_inline_timeShift } true; 4261#L720-2 [2022-02-21 04:17:25,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:25,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:17:25,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:25,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920864055] [2022-02-21 04:17:25,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:25,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:25,325 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:25,331 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:25,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:25,332 INFO L85 PathProgramCache]: Analyzing trace with hash -139133417, now seen corresponding path program 1 times [2022-02-21 04:17:25,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:25,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364913347] [2022-02-21 04:17:25,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:25,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:25,336 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:25,340 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:25,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:25,341 INFO L85 PathProgramCache]: Analyzing trace with hash -264868141, now seen corresponding path program 1 times [2022-02-21 04:17:25,341 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:25,341 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675965224] [2022-02-21 04:17:25,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:25,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:25,349 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:25,358 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:27,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:27 BoogieIcfgContainer [2022-02-21 04:17:27,942 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:27,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:27,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:27,943 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:27,943 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:21" (3/4) ... [2022-02-21 04:17:27,945 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:27,990 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:27,991 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:27,992 INFO L158 Benchmark]: Toolchain (without parser) took 7676.51ms. Allocated memory was 96.5MB in the beginning and 188.7MB in the end (delta: 92.3MB). Free memory was 62.1MB in the beginning and 96.8MB in the end (delta: -34.7MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. [2022-02-21 04:17:27,992 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory was 51.5MB in the beginning and 51.4MB in the end (delta: 38.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:27,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 748.70ms. Allocated memory is still 96.5MB. Free memory was 61.9MB in the beginning and 60.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:27,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 123.40ms. Allocated memory is still 96.5MB. Free memory was 60.4MB in the beginning and 55.4MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:17:27,993 INFO L158 Benchmark]: Boogie Preprocessor took 89.36ms. Allocated memory is still 96.5MB. Free memory was 55.4MB in the beginning and 52.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:27,995 INFO L158 Benchmark]: RCFGBuilder took 704.64ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 52.6MB in the beginning and 91.6MB in the end (delta: -39.0MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2022-02-21 04:17:27,995 INFO L158 Benchmark]: BuchiAutomizer took 5945.02ms. Allocated memory was 130.0MB in the beginning and 188.7MB in the end (delta: 58.7MB). Free memory was 91.6MB in the beginning and 99.9MB in the end (delta: -8.3MB). Peak memory consumption was 101.6MB. Max. memory is 16.1GB. [2022-02-21 04:17:27,995 INFO L158 Benchmark]: Witness Printer took 48.65ms. Allocated memory is still 188.7MB. Free memory was 99.9MB in the beginning and 96.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:27,996 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory was 51.5MB in the beginning and 51.4MB in the end (delta: 38.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 748.70ms. Allocated memory is still 96.5MB. Free memory was 61.9MB in the beginning and 60.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 123.40ms. Allocated memory is still 96.5MB. Free memory was 60.4MB in the beginning and 55.4MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.36ms. Allocated memory is still 96.5MB. Free memory was 55.4MB in the beginning and 52.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 704.64ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 52.6MB in the beginning and 91.6MB in the end (delta: -39.0MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 5945.02ms. Allocated memory was 130.0MB in the beginning and 188.7MB in the end (delta: 58.7MB). Free memory was 91.6MB in the beginning and 99.9MB in the end (delta: -8.3MB). Peak memory consumption was 101.6MB. Max. memory is 16.1GB. * Witness Printer took 48.65ms. Allocated memory is still 188.7MB. Free memory was 99.9MB in the beginning and 96.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 599 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.1s. Büchi inclusion checks took 1.9s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 656 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 599 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2087 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2087 mSDsluCounter, 3263 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2398 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 186 IncrementalHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 865 mSDtfsCounter, 186 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 720]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f14ae7a=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b505ac4=0, tmp___0=0, tmp=0, methaneLevelCritical=0, retValue_acc=1, tmp___0=1, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72dea834=0, tmp=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5759ac76=0, \result=1, \result=1, retValue_acc=0, tmp=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c7c82b5=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75c72f26=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75c71848=0, tmp___2=29, tmp=1, cleanupTimeShifts=4, \result=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e458ea8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41d0dade=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c5a22fa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7058cb53=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 720]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int waterLevel = 1; [L425] int methaneLevelCritical = 0; [L527] int cleanupTimeShifts = 4; [L779] int pumpRunning = 0; [L780] int systemActive = 1; [L606] int retValue_acc ; [L607] int tmp ; [L611] FCALL select_helpers() [L612] FCALL select_features() [L613] CALL, EXPR valid_product() [L655] int retValue_acc ; [L658] retValue_acc = 1 [L659] return (retValue_acc); [L613] RET, EXPR valid_product() [L613] tmp = valid_product() [L615] COND TRUE \read(tmp) [L617] FCALL setup() [L618] CALL runTest() [L597] CALL test() [L711] int splverifierCounter ; [L712] int tmp ; [L713] int tmp___0 ; [L714] int tmp___1 ; [L715] int tmp___2 ; [L718] splverifierCounter = 0 Loop: [L720] COND TRUE 1 [L722] COND TRUE splverifierCounter < 4 [L728] tmp = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp)) [L738] tmp___0 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___0)) [L748] tmp___2 = __VERIFIER_nondet_int() [L750] COND TRUE \read(tmp___2) [L765] CALL timeShift() [L786] COND FALSE !(\read(pumpRunning)) [L793] COND TRUE \read(systemActive) [L795] CALL processEnvironment() [L841] int tmp ; [L844] COND FALSE !(\read(pumpRunning)) [L859] CALL processEnvironment__wrappee__highWaterSensor() [L815] int tmp ; [L818] COND TRUE ! pumpRunning [L820] CALL, EXPR isHighWaterLevel() [L956] int retValue_acc ; [L957] int tmp ; [L958] int tmp___0 ; [L962] CALL, EXPR isHighWaterSensorDry() [L504] int retValue_acc ; [L507] COND TRUE waterLevel < 2 [L508] retValue_acc = 1 [L509] return (retValue_acc); [L962] RET, EXPR isHighWaterSensorDry() [L962] tmp = isHighWaterSensorDry() [L964] COND TRUE \read(tmp) [L965] tmp___0 = 0 [L969] retValue_acc = tmp___0 [L970] return (retValue_acc); [L820] RET, EXPR isHighWaterLevel() [L820] tmp = isHighWaterLevel() [L822] COND FALSE !(\read(tmp)) [L828] FCALL processEnvironment__wrappee__base() [L859] RET processEnvironment__wrappee__highWaterSensor() [L795] RET processEnvironment() [L801] CALL __utac_acc__Specification3_spec__1() [L667] int tmp ; [L668] int tmp___0 ; [L669] int tmp___1 ; [L673] CALL, EXPR isMethaneLevelCritical() [L463] int retValue_acc ; [L466] retValue_acc = methaneLevelCritical [L467] return (retValue_acc); [L673] RET, EXPR isMethaneLevelCritical() [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L679] CALL, EXPR getWaterLevel() [L495] int retValue_acc ; [L498] retValue_acc = waterLevel [L499] return (retValue_acc); [L679] RET, EXPR getWaterLevel() [L679] tmp___0 = getWaterLevel() [L681] COND FALSE !(tmp___0 == 2) [L801] RET __utac_acc__Specification3_spec__1() [L765] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:28,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)