./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product21.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_product21.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 17e2337fd721ce0bbba718ba7912b3f6432f0e21a2bb22404280d45b14116418 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:30,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:30,274 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:30,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:30,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:30,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:30,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:30,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:30,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:30,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:30,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:30,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:30,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:30,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:30,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:30,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:30,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:30,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:30,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:30,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:30,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:30,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:30,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:30,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:30,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:30,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:30,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:30,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:30,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:30,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:30,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:30,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:30,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:30,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:30,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:30,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:30,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:30,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:30,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:30,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:30,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:30,369 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:30,396 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:30,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:30,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:30,402 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:30,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:30,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:30,404 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:30,404 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:30,404 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:30,404 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:30,405 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:30,405 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:30,406 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:30,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:30,406 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:30,406 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:30,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:30,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:30,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:30,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:30,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:30,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:30,408 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:30,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:30,409 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:30,409 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:30,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:30,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:30,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:30,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:30,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:30,412 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:30,412 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17e2337fd721ce0bbba718ba7912b3f6432f0e21a2bb22404280d45b14116418 [2022-02-21 04:18:30,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:30,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:30,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:30,656 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:30,656 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:30,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product21.cil.c [2022-02-21 04:18:30,718 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6a6f3539/d28e077bf2a44de8b0545b6fbc110eb8/FLAG804f5f72b [2022-02-21 04:18:31,129 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:31,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product21.cil.c [2022-02-21 04:18:31,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6a6f3539/d28e077bf2a44de8b0545b6fbc110eb8/FLAG804f5f72b [2022-02-21 04:18:31,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6a6f3539/d28e077bf2a44de8b0545b6fbc110eb8 [2022-02-21 04:18:31,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:31,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:31,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:31,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:31,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:31,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c376a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31, skipping insertion in model container [2022-02-21 04:18:31,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:31,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:31,707 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_product21.cil.c[3727,3740] [2022-02-21 04:18:31,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:31,866 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:31,896 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_product21.cil.c[3727,3740] [2022-02-21 04:18:31,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:31,961 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:31,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31 WrapperNode [2022-02-21 04:18:31,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:31,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:31,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:31,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:31,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,068 INFO L137 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 53, calls inlined = 84, statements flattened = 597 [2022-02-21 04:18:32,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:32,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:32,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:32,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:32,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:32,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:32,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:32,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:32,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:32,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:32,181 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 04:18:32,199 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 04:18:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:32,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:32,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:32,302 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:32,303 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:32,734 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:32,741 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:32,754 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:32,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:32 BoogieIcfgContainer [2022-02-21 04:18:32,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:32,758 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:32,758 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:32,761 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:32,761 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:32,761 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:31" (1/3) ... [2022-02-21 04:18:32,765 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b881187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:32, skipping insertion in model container [2022-02-21 04:18:32,765 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:32,765 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (2/3) ... [2022-02-21 04:18:32,765 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b881187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:32, skipping insertion in model container [2022-02-21 04:18:32,765 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:32,766 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:32" (3/3) ... [2022-02-21 04:18:32,767 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product21.cil.c [2022-02-21 04:18:32,806 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:32,806 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:32,806 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:32,806 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:32,807 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:32,807 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:32,807 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:32,807 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:32,828 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 160 states, 159 states have (on average 1.3459119496855345) internal successors, (214), 159 states have internal predecessors, (214), 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 04:18:32,872 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2022-02-21 04:18:32,872 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:32,872 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:32,877 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:32,877 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:32,877 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:32,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 160 states, 159 states have (on average 1.3459119496855345) internal successors, (214), 159 states have internal predecessors, (214), 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 04:18:32,910 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2022-02-21 04:18:32,913 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:32,914 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:32,915 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:32,915 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:32,920 INFO L791 eck$LassoCheckResult]: Stem: 143#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);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(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 50#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 40#L332true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 78#L325true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 125#L340true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 123#L142true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 137#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 19#L165true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 88#L721-2true [2022-02-21 04:18:32,923 INFO L793 eck$LassoCheckResult]: Loop: 88#L721-2true assume !false; 68#L722true assume test_~splverifierCounter~0#1 < 4; 159#L723true test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 116#L731true assume !(0 != test_~tmp~5#1); 6#L731-2true test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 151#L741true assume !(0 != test_~tmp___0~1#1); 90#L741-2true test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 33#L751true assume 0 != test_~tmp___2~0#1; 63#L757-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 52#L899true __utac_acc__Specification5_spec__2_#t~ret5#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret5#1;havoc __utac_acc__Specification5_spec__2_#t~ret5#1; 7#L175true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 161#L788true assume !(0 != ~pumpRunning~0); 81#L788-2true assume !(0 != ~systemActive~0); 31#L795-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_#t~ret7#1, __utac_acc__Specification5_spec__3_~tmp~1#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~1#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 60#L296true __utac_acc__Specification5_spec__3_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~1#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 74#L186true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1#1); 37#L186-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 98#L805true assume { :end_inline_timeShift } true; 88#L721-2true [2022-02-21 04:18:32,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:32,927 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:32,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:32,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993118747] [2022-02-21 04:18:32,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:32,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:33,084 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:33,153 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:33,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:33,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1727858828, now seen corresponding path program 1 times [2022-02-21 04:18:33,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:33,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098791373] [2022-02-21 04:18:33,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:33,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:33,174 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:33,182 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:33,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:33,184 INFO L85 PathProgramCache]: Analyzing trace with hash 388506421, now seen corresponding path program 1 times [2022-02-21 04:18:33,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:33,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925315192] [2022-02-21 04:18:33,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:33,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:33,381 INFO L290 TraceCheckUtils]: 0: Hoare triple {168#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);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(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; {170#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:33,385 INFO L290 TraceCheckUtils]: 1: Hoare triple {170#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {170#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:33,386 INFO L290 TraceCheckUtils]: 2: Hoare triple {170#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {170#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:33,386 INFO L290 TraceCheckUtils]: 3: Hoare triple {170#(= 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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; {171#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:33,387 INFO L290 TraceCheckUtils]: 4: Hoare triple {171#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; {172#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} is VALID [2022-02-21 04:18:33,387 INFO L290 TraceCheckUtils]: 5: Hoare triple {172#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,388 INFO L290 TraceCheckUtils]: 6: Hoare triple {173#(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; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,388 INFO L290 TraceCheckUtils]: 7: Hoare triple {173#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,389 INFO L290 TraceCheckUtils]: 8: Hoare triple {173#(not (= 0 ~systemActive~0))} assume !false; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,390 INFO L290 TraceCheckUtils]: 9: Hoare triple {173#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,391 INFO L290 TraceCheckUtils]: 10: Hoare triple {173#(not (= 0 ~systemActive~0))} test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,391 INFO L290 TraceCheckUtils]: 11: Hoare triple {173#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~5#1); {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,392 INFO L290 TraceCheckUtils]: 12: Hoare triple {173#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,392 INFO L290 TraceCheckUtils]: 13: Hoare triple {173#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,393 INFO L290 TraceCheckUtils]: 14: Hoare triple {173#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,394 INFO L290 TraceCheckUtils]: 15: Hoare triple {173#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,395 INFO L290 TraceCheckUtils]: 16: Hoare triple {173#(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~ret5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,395 INFO L290 TraceCheckUtils]: 17: Hoare triple {173#(not (= 0 ~systemActive~0))} __utac_acc__Specification5_spec__2_#t~ret5#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret5#1;havoc __utac_acc__Specification5_spec__2_#t~ret5#1; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,398 INFO L290 TraceCheckUtils]: 18: Hoare triple {173#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,400 INFO L290 TraceCheckUtils]: 19: Hoare triple {173#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,400 INFO L290 TraceCheckUtils]: 20: Hoare triple {173#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {169#false} is VALID [2022-02-21 04:18:33,401 INFO L290 TraceCheckUtils]: 21: Hoare triple {169#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_#t~ret7#1, __utac_acc__Specification5_spec__3_~tmp~1#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~1#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; {169#false} is VALID [2022-02-21 04:18:33,401 INFO L290 TraceCheckUtils]: 22: Hoare triple {169#false} __utac_acc__Specification5_spec__3_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~1#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; {169#false} is VALID [2022-02-21 04:18:33,401 INFO L290 TraceCheckUtils]: 23: Hoare triple {169#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1#1); {169#false} is VALID [2022-02-21 04:18:33,401 INFO L290 TraceCheckUtils]: 24: Hoare triple {169#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {169#false} is VALID [2022-02-21 04:18:33,402 INFO L290 TraceCheckUtils]: 25: Hoare triple {169#false} assume { :end_inline_timeShift } true; {169#false} is VALID [2022-02-21 04:18:33,403 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 04:18:33,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:33,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925315192] [2022-02-21 04:18:33,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925315192] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:33,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:33,405 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:33,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737976380] [2022-02-21 04:18:33,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:33,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:33,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:33,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:33,590 INFO L87 Difference]: Start difference. First operand has 160 states, 159 states have (on average 1.3459119496855345) internal successors, (214), 159 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:33,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:33,989 INFO L93 Difference]: Finished difference Result 157 states and 200 transitions. [2022-02-21 04:18:33,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:18:33,990 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:34,015 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:34,019 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 200 transitions. [2022-02-21 04:18:34,026 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2022-02-21 04:18:34,033 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 147 states and 190 transitions. [2022-02-21 04:18:34,034 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 147 [2022-02-21 04:18:34,034 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 147 [2022-02-21 04:18:34,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 147 states and 190 transitions. [2022-02-21 04:18:34,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:34,035 INFO L681 BuchiCegarLoop]: Abstraction has 147 states and 190 transitions. [2022-02-21 04:18:34,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states and 190 transitions. [2022-02-21 04:18:34,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2022-02-21 04:18:34,061 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:34,063 INFO L82 GeneralOperation]: Start isEquivalent. First operand 147 states and 190 transitions. Second operand has 147 states, 147 states have (on average 1.2925170068027212) internal successors, (190), 146 states have internal predecessors, (190), 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 04:18:34,064 INFO L74 IsIncluded]: Start isIncluded. First operand 147 states and 190 transitions. Second operand has 147 states, 147 states have (on average 1.2925170068027212) internal successors, (190), 146 states have internal predecessors, (190), 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 04:18:34,066 INFO L87 Difference]: Start difference. First operand 147 states and 190 transitions. Second operand has 147 states, 147 states have (on average 1.2925170068027212) internal successors, (190), 146 states have internal predecessors, (190), 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 04:18:34,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:34,074 INFO L93 Difference]: Finished difference Result 147 states and 190 transitions. [2022-02-21 04:18:34,074 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 190 transitions. [2022-02-21 04:18:34,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:34,076 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:34,076 INFO L74 IsIncluded]: Start isIncluded. First operand has 147 states, 147 states have (on average 1.2925170068027212) internal successors, (190), 146 states have internal predecessors, (190), 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 147 states and 190 transitions. [2022-02-21 04:18:34,077 INFO L87 Difference]: Start difference. First operand has 147 states, 147 states have (on average 1.2925170068027212) internal successors, (190), 146 states have internal predecessors, (190), 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 147 states and 190 transitions. [2022-02-21 04:18:34,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:34,084 INFO L93 Difference]: Finished difference Result 147 states and 190 transitions. [2022-02-21 04:18:34,084 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 190 transitions. [2022-02-21 04:18:34,085 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:34,085 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:34,086 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:34,086 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:34,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 147 states have (on average 1.2925170068027212) internal successors, (190), 146 states have internal predecessors, (190), 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 04:18:34,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 190 transitions. [2022-02-21 04:18:34,093 INFO L704 BuchiCegarLoop]: Abstraction has 147 states and 190 transitions. [2022-02-21 04:18:34,093 INFO L587 BuchiCegarLoop]: Abstraction has 147 states and 190 transitions. [2022-02-21 04:18:34,093 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:34,093 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 147 states and 190 transitions. [2022-02-21 04:18:34,100 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2022-02-21 04:18:34,100 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:34,100 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:34,102 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:34,102 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] [2022-02-21 04:18:34,102 INFO L791 eck$LassoCheckResult]: Stem: 480#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);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(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 413#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 401#L332 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 402#L325 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 449#L340 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 472#L142 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 473#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 364#L165 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 365#L721-2 [2022-02-21 04:18:34,103 INFO L793 eck$LassoCheckResult]: Loop: 365#L721-2 assume !false; 436#L722 assume test_~splverifierCounter~0#1 < 4; 437#L723 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 467#L731 assume !(0 != test_~tmp~5#1); 339#L731-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 340#L741 assume !(0 != test_~tmp___0~1#1); 428#L741-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 386#L751 assume 0 != test_~tmp___2~0#1; 387#L757-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 416#L899 __utac_acc__Specification5_spec__2_#t~ret5#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret5#1;havoc __utac_acc__Specification5_spec__2_#t~ret5#1; 343#L175 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 344#L788 assume !(0 != ~pumpRunning~0); 412#L788-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 380#L846 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret41#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; 382#L820-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 468#L812-3 assume { :end_inline_processEnvironment__wrappee__base } true; 351#L820-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 352#L846-1 assume { :end_inline_processEnvironment } true; 355#L795-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_#t~ret7#1, __utac_acc__Specification5_spec__3_~tmp~1#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~1#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 383#L296 __utac_acc__Specification5_spec__3_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~1#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 429#L186 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1#1); 392#L186-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 393#L805 assume { :end_inline_timeShift } true; 365#L721-2 [2022-02-21 04:18:34,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:34,104 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:34,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:34,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706929053] [2022-02-21 04:18:34,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:34,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,120 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,133 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:34,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:34,134 INFO L85 PathProgramCache]: Analyzing trace with hash 740546312, now seen corresponding path program 1 times [2022-02-21 04:18:34,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:34,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207360147] [2022-02-21 04:18:34,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:34,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,154 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,164 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:34,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:34,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1564212735, now seen corresponding path program 1 times [2022-02-21 04:18:34,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:34,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778277262] [2022-02-21 04:18:34,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:34,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:34,270 INFO L290 TraceCheckUtils]: 0: Hoare triple {783#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);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(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,271 INFO L290 TraceCheckUtils]: 1: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,271 INFO L290 TraceCheckUtils]: 2: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,272 INFO L290 TraceCheckUtils]: 3: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,272 INFO L290 TraceCheckUtils]: 4: Hoare triple {785#(not (= 2 ~waterLevel~0))} main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,273 INFO L290 TraceCheckUtils]: 5: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,273 INFO L290 TraceCheckUtils]: 6: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,274 INFO L290 TraceCheckUtils]: 7: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,274 INFO L290 TraceCheckUtils]: 8: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume !false; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,274 INFO L290 TraceCheckUtils]: 9: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume test_~splverifierCounter~0#1 < 4; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,275 INFO L290 TraceCheckUtils]: 10: Hoare triple {785#(not (= 2 ~waterLevel~0))} test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,277 INFO L290 TraceCheckUtils]: 11: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume !(0 != test_~tmp~5#1); {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,277 INFO L290 TraceCheckUtils]: 12: Hoare triple {785#(not (= 2 ~waterLevel~0))} test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,277 INFO L290 TraceCheckUtils]: 13: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume !(0 != test_~tmp___0~1#1); {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,278 INFO L290 TraceCheckUtils]: 14: Hoare triple {785#(not (= 2 ~waterLevel~0))} test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,278 INFO L290 TraceCheckUtils]: 15: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume 0 != test_~tmp___2~0#1; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,279 INFO L290 TraceCheckUtils]: 16: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,279 INFO L290 TraceCheckUtils]: 17: Hoare triple {785#(not (= 2 ~waterLevel~0))} __utac_acc__Specification5_spec__2_#t~ret5#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret5#1;havoc __utac_acc__Specification5_spec__2_#t~ret5#1; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,280 INFO L290 TraceCheckUtils]: 18: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,280 INFO L290 TraceCheckUtils]: 19: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume !(0 != ~pumpRunning~0); {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,280 INFO L290 TraceCheckUtils]: 20: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,281 INFO L290 TraceCheckUtils]: 21: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret41#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,281 INFO L290 TraceCheckUtils]: 22: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,282 INFO L290 TraceCheckUtils]: 23: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__base } true; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,282 INFO L290 TraceCheckUtils]: 24: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,285 INFO L290 TraceCheckUtils]: 25: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment } true; {785#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:34,286 INFO L290 TraceCheckUtils]: 26: Hoare triple {785#(not (= 2 ~waterLevel~0))} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_#t~ret7#1, __utac_acc__Specification5_spec__3_~tmp~1#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~1#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; {786#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} is VALID [2022-02-21 04:18:34,286 INFO L290 TraceCheckUtils]: 27: Hoare triple {786#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} __utac_acc__Specification5_spec__3_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~1#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; {787#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~1#1|))} is VALID [2022-02-21 04:18:34,287 INFO L290 TraceCheckUtils]: 28: Hoare triple {787#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~1#1|))} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1#1); {784#false} is VALID [2022-02-21 04:18:34,287 INFO L290 TraceCheckUtils]: 29: Hoare triple {784#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {784#false} is VALID [2022-02-21 04:18:34,287 INFO L290 TraceCheckUtils]: 30: Hoare triple {784#false} assume { :end_inline_timeShift } true; {784#false} is VALID [2022-02-21 04:18:34,288 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 04:18:34,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:34,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778277262] [2022-02-21 04:18:34,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778277262] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:34,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:34,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:18:34,289 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719528950] [2022-02-21 04:18:34,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:34,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:34,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:34,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:34,422 INFO L87 Difference]: Start difference. First operand 147 states and 190 transitions. cyclomatic complexity: 45 Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 04:18:35,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:35,484 INFO L93 Difference]: Finished difference Result 707 states and 916 transitions. [2022-02-21 04:18:35,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:18:35,484 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 04:18:35,510 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:35,511 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 707 states and 916 transitions. [2022-02-21 04:18:35,554 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 471 [2022-02-21 04:18:35,594 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 707 states to 707 states and 916 transitions. [2022-02-21 04:18:35,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 707 [2022-02-21 04:18:35,596 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 707 [2022-02-21 04:18:35,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 707 states and 916 transitions. [2022-02-21 04:18:35,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:35,600 INFO L681 BuchiCegarLoop]: Abstraction has 707 states and 916 transitions. [2022-02-21 04:18:35,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states and 916 transitions. [2022-02-21 04:18:35,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 283. [2022-02-21 04:18:35,622 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:35,623 INFO L82 GeneralOperation]: Start isEquivalent. First operand 707 states and 916 transitions. Second operand has 283 states, 283 states have (on average 1.2826855123674912) internal successors, (363), 282 states have internal predecessors, (363), 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 04:18:35,624 INFO L74 IsIncluded]: Start isIncluded. First operand 707 states and 916 transitions. Second operand has 283 states, 283 states have (on average 1.2826855123674912) internal successors, (363), 282 states have internal predecessors, (363), 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 04:18:35,625 INFO L87 Difference]: Start difference. First operand 707 states and 916 transitions. Second operand has 283 states, 283 states have (on average 1.2826855123674912) internal successors, (363), 282 states have internal predecessors, (363), 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 04:18:35,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:35,656 INFO L93 Difference]: Finished difference Result 707 states and 916 transitions. [2022-02-21 04:18:35,656 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 916 transitions. [2022-02-21 04:18:35,664 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:35,664 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:35,665 INFO L74 IsIncluded]: Start isIncluded. First operand has 283 states, 283 states have (on average 1.2826855123674912) internal successors, (363), 282 states have internal predecessors, (363), 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 707 states and 916 transitions. [2022-02-21 04:18:35,666 INFO L87 Difference]: Start difference. First operand has 283 states, 283 states have (on average 1.2826855123674912) internal successors, (363), 282 states have internal predecessors, (363), 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 707 states and 916 transitions. [2022-02-21 04:18:35,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:35,696 INFO L93 Difference]: Finished difference Result 707 states and 916 transitions. [2022-02-21 04:18:35,701 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 916 transitions. [2022-02-21 04:18:35,702 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:35,702 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:35,703 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:35,703 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:35,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 283 states have (on average 1.2826855123674912) internal successors, (363), 282 states have internal predecessors, (363), 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 04:18:35,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 363 transitions. [2022-02-21 04:18:35,714 INFO L704 BuchiCegarLoop]: Abstraction has 283 states and 363 transitions. [2022-02-21 04:18:35,714 INFO L587 BuchiCegarLoop]: Abstraction has 283 states and 363 transitions. [2022-02-21 04:18:35,714 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:35,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 283 states and 363 transitions. [2022-02-21 04:18:35,715 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 194 [2022-02-21 04:18:35,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:35,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:35,715 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:35,715 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:35,716 INFO L791 eck$LassoCheckResult]: Stem: 1671#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);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(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1584#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1571#L332 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1572#L325 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1625#L340 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1657#L142 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1658#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1533#L165 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1534#L721-2 [2022-02-21 04:18:35,716 INFO L793 eck$LassoCheckResult]: Loop: 1534#L721-2 assume !false; 1608#L722 assume test_~splverifierCounter~0#1 < 4; 1609#L723 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1649#L731 assume !(0 != test_~tmp~5#1); 1507#L731-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1508#L741 assume !(0 != test_~tmp___0~1#1); 1599#L741-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1552#L751 assume 0 != test_~tmp___2~0#1; 1553#L757-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 1587#L899 __utac_acc__Specification5_spec__2_#t~ret5#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret5#1;havoc __utac_acc__Specification5_spec__2_#t~ret5#1; 1509#L175 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1510#L788 assume !(0 != ~pumpRunning~0); 1583#L788-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1547#L846 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret41#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; 1549#L820-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1670#L812-3 assume { :end_inline_processEnvironment__wrappee__base } true; 1519#L820-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1520#L846-1 assume { :end_inline_processEnvironment } true; 1523#L795-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_#t~ret7#1, __utac_acc__Specification5_spec__3_~tmp~1#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~1#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 1550#L296 __utac_acc__Specification5_spec__3_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~1#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 1616#L186 assume 2 != __utac_acc__Specification5_spec__3_~tmp~1#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 1617#L899-1 __utac_acc__Specification5_spec__3_#t~ret7#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret7#1;havoc __utac_acc__Specification5_spec__3_#t~ret7#1; 1656#L190 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 1559#L186-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1560#L805 assume { :end_inline_timeShift } true; 1534#L721-2 [2022-02-21 04:18:35,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:35,717 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:35,718 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:35,718 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534540867] [2022-02-21 04:18:35,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:35,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:35,737 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:35,757 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:35,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:35,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1318662333, now seen corresponding path program 1 times [2022-02-21 04:18:35,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:35,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062154300] [2022-02-21 04:18:35,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:35,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:35,764 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:35,768 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:35,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:35,769 INFO L85 PathProgramCache]: Analyzing trace with hash -49212294, now seen corresponding path program 1 times [2022-02-21 04:18:35,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:35,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888930822] [2022-02-21 04:18:35,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:35,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:35,783 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:35,800 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:38,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:38 BoogieIcfgContainer [2022-02-21 04:18:38,585 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:38,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:38,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:38,585 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:38,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:32" (3/4) ... [2022-02-21 04:18:38,588 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:38,642 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:38,642 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:38,644 INFO L158 Benchmark]: Toolchain (without parser) took 7144.02ms. Allocated memory was 81.8MB in the beginning and 151.0MB in the end (delta: 69.2MB). Free memory was 57.9MB in the beginning and 54.4MB in the end (delta: 3.5MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2022-02-21 04:18:38,644 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 81.8MB. Free memory was 58.2MB in the beginning and 58.1MB in the end (delta: 40.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:38,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 462.08ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 57.6MB in the beginning and 63.8MB in the end (delta: -6.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-21 04:18:38,645 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.14ms. Allocated memory is still 98.6MB. Free memory was 63.8MB in the beginning and 59.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:38,645 INFO L158 Benchmark]: Boogie Preprocessor took 72.36ms. Allocated memory is still 98.6MB. Free memory was 59.7MB in the beginning and 57.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:38,646 INFO L158 Benchmark]: RCFGBuilder took 614.84ms. Allocated memory is still 98.6MB. Free memory was 57.3MB in the beginning and 56.4MB in the end (delta: 817.6kB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2022-02-21 04:18:38,646 INFO L158 Benchmark]: BuchiAutomizer took 5827.02ms. Allocated memory was 98.6MB in the beginning and 151.0MB in the end (delta: 52.4MB). Free memory was 56.4MB in the beginning and 57.4MB in the end (delta: -1.0MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:38,646 INFO L158 Benchmark]: Witness Printer took 57.18ms. Allocated memory is still 151.0MB. Free memory was 57.4MB in the beginning and 54.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:38,648 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 0.20ms. Allocated memory is still 81.8MB. Free memory was 58.2MB in the beginning and 58.1MB in the end (delta: 40.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 462.08ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 57.6MB in the beginning and 63.8MB in the end (delta: -6.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.14ms. Allocated memory is still 98.6MB. Free memory was 63.8MB in the beginning and 59.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.36ms. Allocated memory is still 98.6MB. Free memory was 59.7MB in the beginning and 57.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 614.84ms. Allocated memory is still 98.6MB. Free memory was 57.3MB in the beginning and 56.4MB in the end (delta: 817.6kB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5827.02ms. Allocated memory was 98.6MB in the beginning and 151.0MB in the end (delta: 52.4MB). Free memory was 56.4MB in the beginning and 57.4MB in the end (delta: -1.0MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. * Witness Printer took 57.18ms. Allocated memory is still 151.0MB. Free memory was 57.4MB in the beginning and 54.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 283 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.1s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 424 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 283 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1452 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1452 mSDsluCounter, 1527 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1058 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 128 IncrementalHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 469 mSDtfsCounter, 128 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: 721]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42f62325=0, tmp=0, methaneLevelCritical=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d08b4cd=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6416c7c9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26030fa2=0, \result=1, tmp=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45f783f3=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4044df89=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@614d8cf1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a4de272=0, tmp___2=29, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=1, \result=0, tmp___0=0, head=0, \result=1, retValue_acc=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48dc8402=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6200f9bc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 721]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L159] int switchedOnBeforeTS ; [L221] int waterLevel = 1; [L222] int methaneLevelCritical = 0; [L514] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L778] int pumpRunning = 0; [L779] int systemActive = 1; [L133] int retValue_acc ; [L134] int tmp ; [L138] FCALL select_helpers() [L139] FCALL select_features() [L140] CALL, EXPR valid_product() [L336] int retValue_acc ; [L339] retValue_acc = 1 [L340] return (retValue_acc); [L140] RET, EXPR valid_product() [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L144] FCALL setup() [L145] CALL runTest() [L123] CALL __utac_acc__Specification5_spec__1() [L164] switchedOnBeforeTS = 0 [L123] RET __utac_acc__Specification5_spec__1() [L124] CALL test() [L712] int splverifierCounter ; [L713] int tmp ; [L714] int tmp___0 ; [L715] int tmp___1 ; [L716] int tmp___2 ; [L719] splverifierCounter = 0 Loop: [L721] COND TRUE 1 [L723] COND TRUE splverifierCounter < 4 [L729] tmp = __VERIFIER_nondet_int() [L731] COND FALSE !(\read(tmp)) [L739] tmp___0 = __VERIFIER_nondet_int() [L741] COND FALSE !(\read(tmp___0)) [L749] tmp___2 = __VERIFIER_nondet_int() [L751] COND TRUE \read(tmp___2) [L764] CALL timeShift() [L786] CALL __utac_acc__Specification5_spec__2() [L173] CALL, EXPR isPumpRunning() [L895] int retValue_acc ; [L898] retValue_acc = pumpRunning [L899] return (retValue_acc); [L173] RET, EXPR isPumpRunning() [L173] switchedOnBeforeTS = isPumpRunning() [L786] RET __utac_acc__Specification5_spec__2() [L788] COND FALSE !(\read(pumpRunning)) [L795] COND TRUE \read(systemActive) [L797] CALL processEnvironment() [L843] int tmp ; [L846] COND FALSE !(\read(pumpRunning)) [L861] CALL processEnvironment__wrappee__lowWaterSensor() [L817] int tmp ; [L820] COND FALSE !(\read(pumpRunning)) [L835] FCALL processEnvironment__wrappee__base() [L861] RET processEnvironment__wrappee__lowWaterSensor() [L797] RET processEnvironment() [L803] CALL __utac_acc__Specification5_spec__3() [L179] int tmp ; [L180] int tmp___0 ; [L184] CALL, EXPR getWaterLevel() [L292] int retValue_acc ; [L295] retValue_acc = waterLevel [L296] return (retValue_acc); [L184] RET, EXPR getWaterLevel() [L184] tmp = getWaterLevel() [L186] COND TRUE tmp != 2 [L188] CALL, EXPR isPumpRunning() [L895] int retValue_acc ; [L898] retValue_acc = pumpRunning [L899] return (retValue_acc); [L188] RET, EXPR isPumpRunning() [L188] tmp___0 = isPumpRunning() [L190] COND FALSE !(\read(tmp___0)) [L803] RET __utac_acc__Specification5_spec__3() [L764] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:38,686 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)