./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product08.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_spec5_product08.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 5fa4f60085f64a1804e4aca4b7be9247f343df1e9c84e33b08f4411c844fb6fe --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:19,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:19,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:19,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:19,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:19,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:19,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:19,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:19,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:19,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:19,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:19,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:19,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:19,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:20,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:20,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:20,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:20,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:20,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:20,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:20,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:20,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:20,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:20,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:20,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:20,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:20,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:20,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:20,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:20,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:20,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:20,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:20,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:20,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:20,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:20,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:20,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:20,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:20,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:20,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:20,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:20,028 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:20,052 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:20,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:20,052 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:20,052 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:20,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:20,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:20,054 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:20,054 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:20,054 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:20,054 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:20,055 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:20,055 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:20,055 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:20,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:20,055 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:20,055 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:20,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:20,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:20,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:20,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:20,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:20,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:20,057 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:20,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:20,057 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:20,058 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:20,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:20,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:20,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:20,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:20,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:20,059 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:20,059 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fa4f60085f64a1804e4aca4b7be9247f343df1e9c84e33b08f4411c844fb6fe [2022-02-21 04:18:20,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:20,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:20,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:20,304 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:20,305 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:20,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product08.cil.c [2022-02-21 04:18:20,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76076831e/2af8e88bec854e8292394137fc90aab6/FLAGed57ff2b0 [2022-02-21 04:18:20,811 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:20,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product08.cil.c [2022-02-21 04:18:20,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76076831e/2af8e88bec854e8292394137fc90aab6/FLAGed57ff2b0 [2022-02-21 04:18:20,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76076831e/2af8e88bec854e8292394137fc90aab6 [2022-02-21 04:18:20,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:20,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:20,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:20,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:20,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:20,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:20" (1/1) ... [2022-02-21 04:18:20,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2deb5e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:20, skipping insertion in model container [2022-02-21 04:18:20,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:20" (1/1) ... [2022-02-21 04:18:20,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:20,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:21,142 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product08.cil.c[16885,16898] [2022-02-21 04:18:21,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:21,158 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:21,218 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product08.cil.c[16885,16898] [2022-02-21 04:18:21,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:21,241 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:21,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:21 WrapperNode [2022-02-21 04:18:21,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:21,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:21,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:21,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:21,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:21" (1/1) ... [2022-02-21 04:18:21,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:21" (1/1) ... [2022-02-21 04:18:21,314 INFO L137 Inliner]: procedures = 54, calls = 154, calls flagged for inlining = 51, calls inlined = 57, statements flattened = 409 [2022-02-21 04:18:21,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:21,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:21,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:21,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:21,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:21" (1/1) ... [2022-02-21 04:18:21,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:21" (1/1) ... [2022-02-21 04:18:21,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:21" (1/1) ... [2022-02-21 04:18:21,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:21" (1/1) ... [2022-02-21 04:18:21,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:21" (1/1) ... [2022-02-21 04:18:21,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:21" (1/1) ... [2022-02-21 04:18:21,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:21" (1/1) ... [2022-02-21 04:18:21,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:21,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:21,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:21,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:21,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:21" (1/1) ... [2022-02-21 04:18:21,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:21,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:21,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:18:21,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:18:21,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:21,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:21,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:21,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:21,521 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:21,523 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:22,014 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:22,021 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:22,022 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:22,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:22 BoogieIcfgContainer [2022-02-21 04:18:22,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:22,025 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:22,025 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:22,036 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:22,037 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:22,037 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:20" (1/3) ... [2022-02-21 04:18:22,038 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d26b3fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:22, skipping insertion in model container [2022-02-21 04:18:22,038 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:22,038 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:21" (2/3) ... [2022-02-21 04:18:22,038 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d26b3fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:22, skipping insertion in model container [2022-02-21 04:18:22,039 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:22,039 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:22" (3/3) ... [2022-02-21 04:18:22,040 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product08.cil.c [2022-02-21 04:18:22,084 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:22,085 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:22,085 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:22,085 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:22,085 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:22,085 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:22,085 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:22,086 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:22,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 111 states, 110 states have (on average 1.3454545454545455) internal successors, (148), 110 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:22,158 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2022-02-21 04:18:22,158 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:22,158 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:22,164 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:22,164 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] [2022-02-21 04:18:22,164 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:22,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 111 states, 110 states have (on average 1.3454545454545455) internal successors, (148), 110 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:22,184 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2022-02-21 04:18:22,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:22,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:22,185 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:22,185 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] [2022-02-21 04:18:22,194 INFO L791 eck$LassoCheckResult]: Stem: 101#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret18#1, main_~retValue_acc~2#1, main_~tmp~2#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; 17#L416true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 104#L409true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 90#L424true main_#t~ret18#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret18#1;havoc main_#t~ret18#1; 68#L380true assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; 83#L352true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 4#L437true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet14#1, test_#t~nondet15#1, test_#t~nondet16#1, test_#t~nondet17#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 6#L234-2true [2022-02-21 04:18:22,195 INFO L793 eck$LassoCheckResult]: Loop: 6#L234-2true assume !false; 94#L235true assume test_~splverifierCounter~0#1 < 4; 54#L236true test_~tmp~1#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 9#L244true assume !(0 != test_~tmp~1#1); 30#L244-2true test_~tmp___0~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 50#L254true assume !(0 != test_~tmp___0~0#1); 26#L254-2true test_~tmp___2~0#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 59#L264true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 40#L272true assume !(0 != test_~tmp___1~0#1); 19#L272-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret20#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 7#L157true __utac_acc__Specification5_spec__2_#t~ret20#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret20#1;havoc __utac_acc__Specification5_spec__2_#t~ret20#1; 24#L447true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 64#L72true assume !(0 != ~pumpRunning~0); 8#L72-2true assume !(0 != ~systemActive~0); 97#L79-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret21#1, __utac_acc__Specification5_spec__3_#t~ret22#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 57#L930true __utac_acc__Specification5_spec__3_#t~ret21#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret21#1;havoc __utac_acc__Specification5_spec__3_#t~ret21#1; 87#L458true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 106#L458-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 67#L89true assume { :end_inline_timeShift } true; 6#L234-2true [2022-02-21 04:18:22,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:22,200 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:22,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:22,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561847677] [2022-02-21 04:18:22,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:22,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:22,352 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:22,402 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:22,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:22,405 INFO L85 PathProgramCache]: Analyzing trace with hash 150591929, now seen corresponding path program 1 times [2022-02-21 04:18:22,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:22,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256867028] [2022-02-21 04:18:22,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:22,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:22,429 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:22,435 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:22,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:22,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1580340272, now seen corresponding path program 1 times [2022-02-21 04:18:22,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:22,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358705851] [2022-02-21 04:18:22,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:22,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:22,573 INFO L290 TraceCheckUtils]: 0: Hoare triple {119#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {121#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:22,574 INFO L290 TraceCheckUtils]: 1: Hoare triple {121#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret18#1, main_~retValue_acc~2#1, main_~tmp~2#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; {121#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:22,575 INFO L290 TraceCheckUtils]: 2: Hoare triple {121#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {121#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:22,575 INFO L290 TraceCheckUtils]: 3: Hoare triple {121#(= 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~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; {122#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:22,576 INFO L290 TraceCheckUtils]: 4: Hoare triple {122#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret18#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret18#1;havoc main_#t~ret18#1; {123#(= |ULTIMATE.start_main_~tmp~2#1| ~systemActive~0)} is VALID [2022-02-21 04:18:22,576 INFO L290 TraceCheckUtils]: 5: Hoare triple {123#(= |ULTIMATE.start_main_~tmp~2#1| ~systemActive~0)} assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:22,577 INFO L290 TraceCheckUtils]: 6: Hoare triple {124#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:22,577 INFO L290 TraceCheckUtils]: 7: Hoare triple {124#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet14#1, test_#t~nondet15#1, test_#t~nondet16#1, test_#t~nondet17#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:22,578 INFO L290 TraceCheckUtils]: 8: Hoare triple {124#(not (= 0 ~systemActive~0))} assume !false; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:22,579 INFO L290 TraceCheckUtils]: 9: Hoare triple {124#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:22,579 INFO L290 TraceCheckUtils]: 10: Hoare triple {124#(not (= 0 ~systemActive~0))} test_~tmp~1#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:22,580 INFO L290 TraceCheckUtils]: 11: Hoare triple {124#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~1#1); {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:22,581 INFO L290 TraceCheckUtils]: 12: Hoare triple {124#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:22,581 INFO L290 TraceCheckUtils]: 13: Hoare triple {124#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:22,582 INFO L290 TraceCheckUtils]: 14: Hoare triple {124#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:22,582 INFO L290 TraceCheckUtils]: 15: Hoare triple {124#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:22,583 INFO L290 TraceCheckUtils]: 16: Hoare triple {124#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___1~0#1); {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:22,584 INFO L290 TraceCheckUtils]: 17: Hoare triple {124#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret20#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:22,585 INFO L290 TraceCheckUtils]: 18: Hoare triple {124#(not (= 0 ~systemActive~0))} __utac_acc__Specification5_spec__2_#t~ret20#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret20#1;havoc __utac_acc__Specification5_spec__2_#t~ret20#1; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:22,586 INFO L290 TraceCheckUtils]: 19: Hoare triple {124#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:22,586 INFO L290 TraceCheckUtils]: 20: Hoare triple {124#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {124#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:22,588 INFO L290 TraceCheckUtils]: 21: Hoare triple {124#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {120#false} is VALID [2022-02-21 04:18:22,588 INFO L290 TraceCheckUtils]: 22: Hoare triple {120#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret21#1, __utac_acc__Specification5_spec__3_#t~ret22#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; {120#false} is VALID [2022-02-21 04:18:22,589 INFO L290 TraceCheckUtils]: 23: Hoare triple {120#false} __utac_acc__Specification5_spec__3_#t~ret21#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret21#1;havoc __utac_acc__Specification5_spec__3_#t~ret21#1; {120#false} is VALID [2022-02-21 04:18:22,589 INFO L290 TraceCheckUtils]: 24: Hoare triple {120#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); {120#false} is VALID [2022-02-21 04:18:22,590 INFO L290 TraceCheckUtils]: 25: Hoare triple {120#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {120#false} is VALID [2022-02-21 04:18:22,590 INFO L290 TraceCheckUtils]: 26: Hoare triple {120#false} assume { :end_inline_timeShift } true; {120#false} is VALID [2022-02-21 04:18:22,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:22,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:22,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358705851] [2022-02-21 04:18:22,593 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358705851] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:22,593 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:22,594 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:22,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685336556] [2022-02-21 04:18:22,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:22,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:22,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:22,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:22,809 INFO L87 Difference]: Start difference. First operand has 111 states, 110 states have (on average 1.3454545454545455) internal successors, (148), 110 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:23,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:23,590 INFO L93 Difference]: Finished difference Result 379 states and 480 transitions. [2022-02-21 04:18:23,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:23,591 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:23,613 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:23,617 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 379 states and 480 transitions. [2022-02-21 04:18:23,630 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 244 [2022-02-21 04:18:23,642 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 379 states to 339 states and 440 transitions. [2022-02-21 04:18:23,643 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 339 [2022-02-21 04:18:23,644 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 339 [2022-02-21 04:18:23,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 339 states and 440 transitions. [2022-02-21 04:18:23,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:23,645 INFO L681 BuchiCegarLoop]: Abstraction has 339 states and 440 transitions. [2022-02-21 04:18:23,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states and 440 transitions. [2022-02-21 04:18:23,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 159. [2022-02-21 04:18:23,669 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:23,670 INFO L82 GeneralOperation]: Start isEquivalent. First operand 339 states and 440 transitions. Second operand has 159 states, 159 states have (on average 1.3018867924528301) internal successors, (207), 158 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:23,671 INFO L74 IsIncluded]: Start isIncluded. First operand 339 states and 440 transitions. Second operand has 159 states, 159 states have (on average 1.3018867924528301) internal successors, (207), 158 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:23,672 INFO L87 Difference]: Start difference. First operand 339 states and 440 transitions. Second operand has 159 states, 159 states have (on average 1.3018867924528301) internal successors, (207), 158 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:23,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:23,681 INFO L93 Difference]: Finished difference Result 339 states and 440 transitions. [2022-02-21 04:18:23,681 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 440 transitions. [2022-02-21 04:18:23,683 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:23,683 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:23,683 INFO L74 IsIncluded]: Start isIncluded. First operand has 159 states, 159 states have (on average 1.3018867924528301) internal successors, (207), 158 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 339 states and 440 transitions. [2022-02-21 04:18:23,684 INFO L87 Difference]: Start difference. First operand has 159 states, 159 states have (on average 1.3018867924528301) internal successors, (207), 158 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 339 states and 440 transitions. [2022-02-21 04:18:23,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:23,692 INFO L93 Difference]: Finished difference Result 339 states and 440 transitions. [2022-02-21 04:18:23,692 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 440 transitions. [2022-02-21 04:18:23,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:23,694 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:23,694 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:23,694 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:23,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 159 states have (on average 1.3018867924528301) internal successors, (207), 158 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:23,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 207 transitions. [2022-02-21 04:18:23,698 INFO L704 BuchiCegarLoop]: Abstraction has 159 states and 207 transitions. [2022-02-21 04:18:23,698 INFO L587 BuchiCegarLoop]: Abstraction has 159 states and 207 transitions. [2022-02-21 04:18:23,698 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:23,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 207 transitions. [2022-02-21 04:18:23,698 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 113 [2022-02-21 04:18:23,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:23,699 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:23,699 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:23,699 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:23,699 INFO L791 eck$LassoCheckResult]: Stem: 605#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 560#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret18#1, main_~retValue_acc~2#1, main_~tmp~2#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; 535#L416 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 536#L409 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 601#L424 main_#t~ret18#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret18#1;havoc main_#t~ret18#1; 591#L380 assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; 592#L352 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 508#L437 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet14#1, test_#t~nondet15#1, test_#t~nondet16#1, test_#t~nondet17#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 509#L234-2 [2022-02-21 04:18:23,703 INFO L793 eck$LassoCheckResult]: Loop: 509#L234-2 assume !false; 513#L235 assume test_~splverifierCounter~0#1 < 4; 582#L236 test_~tmp~1#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 518#L244 assume !(0 != test_~tmp~1#1); 520#L244-2 test_~tmp___0~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 555#L254 assume !(0 != test_~tmp___0~0#1); 549#L254-2 test_~tmp___2~0#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 550#L264 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 567#L272 assume !(0 != test_~tmp___1~0#1); 539#L272-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret20#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 514#L157 __utac_acc__Specification5_spec__2_#t~ret20#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret20#1;havoc __utac_acc__Specification5_spec__2_#t~ret20#1; 515#L447 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 547#L72 assume !(0 != ~pumpRunning~0); 516#L72-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret4#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 517#L104 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 538#L96-1 assume { :end_inline_processEnvironment__wrappee__base } true; 556#L104-1 assume { :end_inline_processEnvironment } true; 603#L79-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret21#1, __utac_acc__Specification5_spec__3_#t~ret22#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 584#L930 __utac_acc__Specification5_spec__3_#t~ret21#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret21#1;havoc __utac_acc__Specification5_spec__3_#t~ret21#1; 585#L458 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 562#L458-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 590#L89 assume { :end_inline_timeShift } true; 509#L234-2 [2022-02-21 04:18:23,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:23,703 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:23,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:23,704 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720741051] [2022-02-21 04:18:23,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:23,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:23,716 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:23,734 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:23,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:23,734 INFO L85 PathProgramCache]: Analyzing trace with hash -967292211, now seen corresponding path program 1 times [2022-02-21 04:18:23,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:23,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243350736] [2022-02-21 04:18:23,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:23,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:23,740 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:23,756 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:23,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:23,756 INFO L85 PathProgramCache]: Analyzing trace with hash -525080330, now seen corresponding path program 1 times [2022-02-21 04:18:23,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:23,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780716832] [2022-02-21 04:18:23,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:23,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:23,809 INFO L290 TraceCheckUtils]: 0: Hoare triple {1352#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,810 INFO L290 TraceCheckUtils]: 1: Hoare triple {1354#(= ~waterLevel~0 1)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret18#1, main_~retValue_acc~2#1, main_~tmp~2#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,810 INFO L290 TraceCheckUtils]: 2: Hoare triple {1354#(= ~waterLevel~0 1)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,811 INFO L290 TraceCheckUtils]: 3: Hoare triple {1354#(= ~waterLevel~0 1)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,811 INFO L290 TraceCheckUtils]: 4: Hoare triple {1354#(= ~waterLevel~0 1)} main_#t~ret18#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret18#1;havoc main_#t~ret18#1; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,811 INFO L290 TraceCheckUtils]: 5: Hoare triple {1354#(= ~waterLevel~0 1)} assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,812 INFO L290 TraceCheckUtils]: 6: Hoare triple {1354#(= ~waterLevel~0 1)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,812 INFO L290 TraceCheckUtils]: 7: Hoare triple {1354#(= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet14#1, test_#t~nondet15#1, test_#t~nondet16#1, test_#t~nondet17#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,813 INFO L290 TraceCheckUtils]: 8: Hoare triple {1354#(= ~waterLevel~0 1)} assume !false; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,813 INFO L290 TraceCheckUtils]: 9: Hoare triple {1354#(= ~waterLevel~0 1)} assume test_~splverifierCounter~0#1 < 4; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,813 INFO L290 TraceCheckUtils]: 10: Hoare triple {1354#(= ~waterLevel~0 1)} test_~tmp~1#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,814 INFO L290 TraceCheckUtils]: 11: Hoare triple {1354#(= ~waterLevel~0 1)} assume !(0 != test_~tmp~1#1); {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,814 INFO L290 TraceCheckUtils]: 12: Hoare triple {1354#(= ~waterLevel~0 1)} test_~tmp___0~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,815 INFO L290 TraceCheckUtils]: 13: Hoare triple {1354#(= ~waterLevel~0 1)} assume !(0 != test_~tmp___0~0#1); {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,815 INFO L290 TraceCheckUtils]: 14: Hoare triple {1354#(= ~waterLevel~0 1)} test_~tmp___2~0#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,815 INFO L290 TraceCheckUtils]: 15: Hoare triple {1354#(= ~waterLevel~0 1)} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,816 INFO L290 TraceCheckUtils]: 16: Hoare triple {1354#(= ~waterLevel~0 1)} assume !(0 != test_~tmp___1~0#1); {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,816 INFO L290 TraceCheckUtils]: 17: Hoare triple {1354#(= ~waterLevel~0 1)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret20#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,817 INFO L290 TraceCheckUtils]: 18: Hoare triple {1354#(= ~waterLevel~0 1)} __utac_acc__Specification5_spec__2_#t~ret20#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret20#1;havoc __utac_acc__Specification5_spec__2_#t~ret20#1; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,817 INFO L290 TraceCheckUtils]: 19: Hoare triple {1354#(= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,817 INFO L290 TraceCheckUtils]: 20: Hoare triple {1354#(= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0); {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,818 INFO L290 TraceCheckUtils]: 21: Hoare triple {1354#(= ~waterLevel~0 1)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret4#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,818 INFO L290 TraceCheckUtils]: 22: Hoare triple {1354#(= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,819 INFO L290 TraceCheckUtils]: 23: Hoare triple {1354#(= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__base } true; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,819 INFO L290 TraceCheckUtils]: 24: Hoare triple {1354#(= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {1354#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:23,820 INFO L290 TraceCheckUtils]: 25: Hoare triple {1354#(= ~waterLevel~0 1)} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret21#1, __utac_acc__Specification5_spec__3_#t~ret22#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; {1355#(= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:18:23,820 INFO L290 TraceCheckUtils]: 26: Hoare triple {1355#(= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __utac_acc__Specification5_spec__3_#t~ret21#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret21#1;havoc __utac_acc__Specification5_spec__3_#t~ret21#1; {1356#(= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~3#1| 1)} is VALID [2022-02-21 04:18:23,821 INFO L290 TraceCheckUtils]: 27: Hoare triple {1356#(= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~3#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); {1353#false} is VALID [2022-02-21 04:18:23,821 INFO L290 TraceCheckUtils]: 28: Hoare triple {1353#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {1353#false} is VALID [2022-02-21 04:18:23,821 INFO L290 TraceCheckUtils]: 29: Hoare triple {1353#false} assume { :end_inline_timeShift } true; {1353#false} is VALID [2022-02-21 04:18:23,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:23,822 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:23,822 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780716832] [2022-02-21 04:18:23,822 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780716832] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:23,822 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:23,822 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:18:23,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729743113] [2022-02-21 04:18:23,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:23,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:23,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:23,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:23,940 INFO L87 Difference]: Start difference. First operand 159 states and 207 transitions. cyclomatic complexity: 51 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:24,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:24,398 INFO L93 Difference]: Finished difference Result 429 states and 548 transitions. [2022-02-21 04:18:24,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:24,398 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:24,419 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:24,420 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 429 states and 548 transitions. [2022-02-21 04:18:24,432 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 214 [2022-02-21 04:18:24,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 429 states to 429 states and 548 transitions. [2022-02-21 04:18:24,445 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 429 [2022-02-21 04:18:24,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 429 [2022-02-21 04:18:24,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 429 states and 548 transitions. [2022-02-21 04:18:24,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:24,449 INFO L681 BuchiCegarLoop]: Abstraction has 429 states and 548 transitions. [2022-02-21 04:18:24,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states and 548 transitions. [2022-02-21 04:18:24,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 302. [2022-02-21 04:18:24,472 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:24,473 INFO L82 GeneralOperation]: Start isEquivalent. First operand 429 states and 548 transitions. Second operand has 302 states, 302 states have (on average 1.271523178807947) internal successors, (384), 301 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:24,473 INFO L74 IsIncluded]: Start isIncluded. First operand 429 states and 548 transitions. Second operand has 302 states, 302 states have (on average 1.271523178807947) internal successors, (384), 301 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:24,474 INFO L87 Difference]: Start difference. First operand 429 states and 548 transitions. Second operand has 302 states, 302 states have (on average 1.271523178807947) internal successors, (384), 301 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:24,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:24,486 INFO L93 Difference]: Finished difference Result 429 states and 548 transitions. [2022-02-21 04:18:24,486 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 548 transitions. [2022-02-21 04:18:24,491 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:24,491 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:24,492 INFO L74 IsIncluded]: Start isIncluded. First operand has 302 states, 302 states have (on average 1.271523178807947) internal successors, (384), 301 states have internal predecessors, (384), 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 429 states and 548 transitions. [2022-02-21 04:18:24,493 INFO L87 Difference]: Start difference. First operand has 302 states, 302 states have (on average 1.271523178807947) internal successors, (384), 301 states have internal predecessors, (384), 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 429 states and 548 transitions. [2022-02-21 04:18:24,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:24,505 INFO L93 Difference]: Finished difference Result 429 states and 548 transitions. [2022-02-21 04:18:24,507 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 548 transitions. [2022-02-21 04:18:24,508 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:24,508 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:24,508 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:24,508 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:24,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 302 states have (on average 1.271523178807947) internal successors, (384), 301 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:24,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 384 transitions. [2022-02-21 04:18:24,515 INFO L704 BuchiCegarLoop]: Abstraction has 302 states and 384 transitions. [2022-02-21 04:18:24,515 INFO L587 BuchiCegarLoop]: Abstraction has 302 states and 384 transitions. [2022-02-21 04:18:24,515 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:24,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 302 states and 384 transitions. [2022-02-21 04:18:24,516 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 214 [2022-02-21 04:18:24,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:24,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:24,516 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:24,516 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] [2022-02-21 04:18:24,517 INFO L791 eck$LassoCheckResult]: Stem: 1914#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1846#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret18#1, main_~retValue_acc~2#1, main_~tmp~2#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; 1820#L416 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1821#L409 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 1905#L424 main_#t~ret18#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret18#1;havoc main_#t~ret18#1; 1883#L380 assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; 1884#L352 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1792#L437 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet14#1, test_#t~nondet15#1, test_#t~nondet16#1, test_#t~nondet17#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1793#L234-2 [2022-02-21 04:18:24,517 INFO L793 eck$LassoCheckResult]: Loop: 1793#L234-2 assume !false; 2075#L235 assume test_~splverifierCounter~0#1 < 4; 2074#L236 test_~tmp~1#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 2073#L244 assume !(0 != test_~tmp~1#1); 2072#L244-2 test_~tmp___0~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 2070#L254 assume !(0 != test_~tmp___0~0#1); 2068#L254-2 test_~tmp___2~0#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 2028#L264 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2016#L217 assume { :end_inline_startSystem } true; 2027#L272-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret20#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 2067#L157 __utac_acc__Specification5_spec__2_#t~ret20#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret20#1;havoc __utac_acc__Specification5_spec__2_#t~ret20#1; 2066#L447 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2064#L72 assume !(0 != ~pumpRunning~0); 2065#L72-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret4#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 2004#L104 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 2054#L96-1 assume { :end_inline_processEnvironment__wrappee__base } true; 1918#L104-1 assume { :end_inline_processEnvironment } true; 1911#L79-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret21#1, __utac_acc__Specification5_spec__3_#t~ret22#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 1875#L930 __utac_acc__Specification5_spec__3_#t~ret21#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret21#1;havoc __utac_acc__Specification5_spec__3_#t~ret21#1; 1876#L458 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 1902#L157-1 __utac_acc__Specification5_spec__3_#t~ret22#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~1#1 := __utac_acc__Specification5_spec__3_#t~ret22#1;havoc __utac_acc__Specification5_spec__3_#t~ret22#1; 2081#L462 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1#1); 2078#L458-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2077#L89 assume { :end_inline_timeShift } true; 1793#L234-2 [2022-02-21 04:18:24,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:24,517 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:24,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:24,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637323992] [2022-02-21 04:18:24,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:24,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:24,529 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:24,540 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:24,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:24,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1902399094, now seen corresponding path program 1 times [2022-02-21 04:18:24,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:24,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365603014] [2022-02-21 04:18:24,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:24,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:24,545 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:24,550 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:24,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:24,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1666254431, now seen corresponding path program 1 times [2022-02-21 04:18:24,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:24,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185438580] [2022-02-21 04:18:24,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:24,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:24,574 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:24,603 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:27,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:27 BoogieIcfgContainer [2022-02-21 04:18:27,445 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:27,445 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:27,445 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:27,445 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:27,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:22" (3/4) ... [2022-02-21 04:18:27,448 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:27,490 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:27,491 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:27,492 INFO L158 Benchmark]: Toolchain (without parser) took 6659.88ms. Allocated memory was 100.7MB in the beginning and 182.5MB in the end (delta: 81.8MB). Free memory was 63.6MB in the beginning and 76.4MB in the end (delta: -12.8MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. [2022-02-21 04:18:27,492 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 100.7MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:27,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.40ms. Allocated memory is still 100.7MB. Free memory was 63.4MB in the beginning and 64.6MB in the end (delta: -1.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-21 04:18:27,493 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.13ms. Allocated memory is still 100.7MB. Free memory was 64.6MB in the beginning and 61.2MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:27,493 INFO L158 Benchmark]: Boogie Preprocessor took 36.19ms. Allocated memory is still 100.7MB. Free memory was 61.2MB in the beginning and 59.2MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:27,494 INFO L158 Benchmark]: RCFGBuilder took 672.38ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 59.2MB in the beginning and 126.9MB in the end (delta: -67.7MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2022-02-21 04:18:27,494 INFO L158 Benchmark]: BuchiAutomizer took 5419.99ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 126.9MB in the beginning and 78.5MB in the end (delta: 48.4MB). Peak memory consumption was 106.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:27,495 INFO L158 Benchmark]: Witness Printer took 45.72ms. Allocated memory is still 182.5MB. Free memory was 78.5MB in the beginning and 76.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:27,497 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 0.21ms. Allocated memory is still 100.7MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 408.40ms. Allocated memory is still 100.7MB. Free memory was 63.4MB in the beginning and 64.6MB in the end (delta: -1.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.13ms. Allocated memory is still 100.7MB. Free memory was 64.6MB in the beginning and 61.2MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.19ms. Allocated memory is still 100.7MB. Free memory was 61.2MB in the beginning and 59.2MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 672.38ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 59.2MB in the beginning and 126.9MB in the end (delta: -67.7MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5419.99ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 126.9MB in the beginning and 78.5MB in the end (delta: 48.4MB). Peak memory consumption was 106.1MB. Max. memory is 16.1GB. * Witness Printer took 45.72ms. Allocated memory is still 182.5MB. Free memory was 78.5MB in the beginning and 76.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 302 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.7s. Construction of modules took 0.1s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 307 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 302 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1142 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1142 mSDsluCounter, 1597 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1255 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 342 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 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: 234]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5005ef9c=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, retValue_acc=0, retValue_acc=1, retValue_acc=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4516b5f9=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@653015bc=29, \result=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e682a6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7942dcb7=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50bb9d08=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@133f7663=0, tmp=0, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=1, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e503897=0, tmp___0=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cbb5a5f=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 234]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L293] int cleanupTimeShifts = 4; [L431] int switchedOnBeforeTS ; [L649] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L855] int waterLevel = 1; [L856] int methaneLevelCritical = 0; [L371] int retValue_acc ; [L372] int tmp ; [L376] FCALL select_helpers() [L377] FCALL select_features() [L378] CALL, EXPR valid_product() [L420] int retValue_acc ; [L423] retValue_acc = 1 [L424] return (retValue_acc); [L378] RET, EXPR valid_product() [L378] tmp = valid_product() [L380] COND TRUE \read(tmp) [L382] FCALL setup() [L383] CALL runTest() [L361] CALL __utac_acc__Specification5_spec__1() [L436] switchedOnBeforeTS = 0 [L361] RET __utac_acc__Specification5_spec__1() [L362] CALL test() [L225] int splverifierCounter ; [L226] int tmp ; [L227] int tmp___0 ; [L228] int tmp___1 ; [L229] int tmp___2 ; [L232] splverifierCounter = 0 Loop: [L234] COND TRUE 1 [L236] COND TRUE splverifierCounter < 4 [L242] tmp = __VERIFIER_nondet_int() [L244] COND FALSE !(\read(tmp)) [L252] tmp___0 = __VERIFIER_nondet_int() [L254] COND FALSE !(\read(tmp___0)) [L262] tmp___2 = __VERIFIER_nondet_int() [L264] COND TRUE \read(tmp___2) [L266] CALL startSystem() [L216] systemActive = 1 [L266] RET startSystem() [L281] CALL timeShift() [L70] CALL __utac_acc__Specification5_spec__2() [L445] CALL, EXPR isPumpRunning() [L153] int retValue_acc ; [L156] retValue_acc = pumpRunning [L157] return (retValue_acc); [L445] RET, EXPR isPumpRunning() [L445] switchedOnBeforeTS = isPumpRunning() [L70] RET __utac_acc__Specification5_spec__2() [L72] COND FALSE !(\read(pumpRunning)) [L79] COND TRUE \read(systemActive) [L81] CALL processEnvironment() [L101] int tmp ; [L104] COND FALSE !(\read(pumpRunning)) [L119] FCALL processEnvironment__wrappee__base() [L81] RET processEnvironment() [L87] CALL __utac_acc__Specification5_spec__3() [L451] int tmp ; [L452] int tmp___0 ; [L456] CALL, EXPR getWaterLevel() [L926] int retValue_acc ; [L929] retValue_acc = waterLevel [L930] return (retValue_acc); [L456] RET, EXPR getWaterLevel() [L456] tmp = getWaterLevel() [L458] COND TRUE tmp != 2 [L460] CALL, EXPR isPumpRunning() [L153] int retValue_acc ; [L156] retValue_acc = pumpRunning [L157] return (retValue_acc); [L460] RET, EXPR isPumpRunning() [L460] tmp___0 = isPumpRunning() [L462] COND FALSE !(\read(tmp___0)) [L87] RET __utac_acc__Specification5_spec__3() [L281] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:27,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)