./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product34.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 2a152d19fa28b0169076b34a0513a75c542cc933ab1c694f300fdf3273b66e93 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:35:03,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:35:03,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:35:03,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:35:03,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:35:03,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:35:03,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:35:03,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:35:03,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:35:03,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:35:03,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:35:03,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:35:03,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:35:03,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:35:03,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:35:03,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:35:03,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:35:03,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:35:03,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:35:03,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:35:03,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:35:03,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:35:03,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:35:03,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:35:03,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:35:03,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:35:03,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:35:03,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:35:03,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:35:03,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:35:03,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:35:03,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:35:03,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:35:03,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:35:03,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:35:03,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:35:03,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:35:03,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:35:03,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:35:03,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:35:03,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:35:03,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-21 22:35:03,398 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:35:03,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:35:03,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:35:03,401 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:35:03,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:35:03,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:35:03,403 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:35:03,403 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:35:03,403 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:35:03,403 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:35:03,404 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:35:03,404 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:35:03,404 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:35:03,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:35:03,405 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 22:35:03,405 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:35:03,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:35:03,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 22:35:03,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:35:03,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:35:03,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:35:03,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:35:03,406 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 22:35:03,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:35:03,406 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:35:03,406 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:35:03,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:35:03,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:35:03,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:35:03,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:35:03,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:35:03,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:35:03,408 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:35:03,408 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a152d19fa28b0169076b34a0513a75c542cc933ab1c694f300fdf3273b66e93 [2021-12-21 22:35:03,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:35:03,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:35:03,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:35:03,636 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:35:03,637 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:35:03,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2021-12-21 22:35:03,684 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30e4b6cf2/46fe408ae92441889add034893f166b2/FLAG7d548650e [2021-12-21 22:35:04,114 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:35:04,114 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2021-12-21 22:35:04,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30e4b6cf2/46fe408ae92441889add034893f166b2/FLAG7d548650e [2021-12-21 22:35:04,140 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30e4b6cf2/46fe408ae92441889add034893f166b2 [2021-12-21 22:35:04,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:35:04,143 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:35:04,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:35:04,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:35:04,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:35:04,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:35:04" (1/1) ... [2021-12-21 22:35:04,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bdba63c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:04, skipping insertion in model container [2021-12-21 22:35:04,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:35:04" (1/1) ... [2021-12-21 22:35:04,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:35:04,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:35:04,367 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_spec4_product34.cil.c[8026,8039] [2021-12-21 22:35:04,403 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:35:04,424 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:35:04,462 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_spec4_product34.cil.c[8026,8039] [2021-12-21 22:35:04,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:35:04,502 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:35:04,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:04 WrapperNode [2021-12-21 22:35:04,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:35:04,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:35:04,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:35:04,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:35:04,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:04" (1/1) ... [2021-12-21 22:35:04,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:04" (1/1) ... [2021-12-21 22:35:04,565 INFO L137 Inliner]: procedures = 53, calls = 150, calls flagged for inlining = 47, calls inlined = 48, statements flattened = 392 [2021-12-21 22:35:04,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:35:04,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:35:04,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:35:04,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:35:04,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:04" (1/1) ... [2021-12-21 22:35:04,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:04" (1/1) ... [2021-12-21 22:35:04,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:04" (1/1) ... [2021-12-21 22:35:04,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:04" (1/1) ... [2021-12-21 22:35:04,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:04" (1/1) ... [2021-12-21 22:35:04,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:04" (1/1) ... [2021-12-21 22:35:04,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:04" (1/1) ... [2021-12-21 22:35:04,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:35:04,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:35:04,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:35:04,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:35:04,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:04" (1/1) ... [2021-12-21 22:35:04,621 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:35:04,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:35:04,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:35:04,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-21 22:35:04,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 22:35:04,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 22:35:04,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:35:04,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:35:04,771 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:35:04,772 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:35:05,066 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:35:05,071 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:35:05,071 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 22:35:05,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:35:05 BoogieIcfgContainer [2021-12-21 22:35:05,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:35:05,074 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:35:05,074 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:35:05,076 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:35:05,077 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:35:05,077 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:35:04" (1/3) ... [2021-12-21 22:35:05,078 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69b0c321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:35:05, skipping insertion in model container [2021-12-21 22:35:05,078 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:35:05,078 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:04" (2/3) ... [2021-12-21 22:35:05,078 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69b0c321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:35:05, skipping insertion in model container [2021-12-21 22:35:05,078 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:35:05,079 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:35:05" (3/3) ... [2021-12-21 22:35:05,081 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product34.cil.c [2021-12-21 22:35:05,148 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:35:05,148 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:35:05,148 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:35:05,148 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:35:05,148 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:35:05,148 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:35:05,148 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:35:05,148 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:35:05,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:35:05,178 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-12-21 22:35:05,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:35:05,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:35:05,182 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:35:05,183 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:35:05,183 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:35:05,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:35:05,187 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-12-21 22:35:05,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:35:05,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:35:05,188 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:35:05,188 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:35:05,192 INFO L791 eck$LassoCheckResult]: Stem: 96#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 32#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 63#L205true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 58#L198true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 100#L213true main_#t~ret6#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1; 49#L169true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 80#L142true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 90#L229-2true [2021-12-21 22:35:05,192 INFO L793 eck$LassoCheckResult]: Loop: 90#L229-2true assume !false; 61#L230true assume test_~splverifierCounter~0#1 < 4; 66#L231true test_~tmp~2#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 24#L239true assume !(0 != test_~tmp~2#1); 36#L239-2true test_~tmp___0~1#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 7#L249true assume !(0 != test_~tmp___0~1#1); 21#L249-2true test_~tmp___2~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 56#L259true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 20#L267true assume 0 != test_~tmp___1~0#1; 74#L267-2true assume { :begin_inline_timeShift } true; 31#L299true assume !(0 != ~pumpRunning~0); 72#L299-2true assume !(0 != ~systemActive~0); 93#L306-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret4#1, __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_~tmp~0#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~0#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 77#L527true __utac_acc__Specification4_spec__1_#t~ret4#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0#1 := __utac_acc__Specification4_spec__1_#t~ret4#1;havoc __utac_acc__Specification4_spec__1_#t~ret4#1; 57#L61true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0#1); 88#L61-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 92#L316true assume { :end_inline_timeShift } true; 90#L229-2true [2021-12-21 22:35:05,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:35:05,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-21 22:35:05,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:35:05,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768242841] [2021-12-21 22:35:05,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:35:05,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:35:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:05,276 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:35:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:05,312 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:35:05,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:35:05,315 INFO L85 PathProgramCache]: Analyzing trace with hash 61754690, now seen corresponding path program 1 times [2021-12-21 22:35:05,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:35:05,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360521251] [2021-12-21 22:35:05,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:35:05,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:35:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:05,321 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:35:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:05,327 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:35:05,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:35:05,335 INFO L85 PathProgramCache]: Analyzing trace with hash -869926914, now seen corresponding path program 1 times [2021-12-21 22:35:05,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:35:05,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546151498] [2021-12-21 22:35:05,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:35:05,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:35:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:35:05,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:35:05,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:35:05,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546151498] [2021-12-21 22:35:05,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546151498] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:35:05,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:35:05,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 22:35:05,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783995253] [2021-12-21 22:35:05,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:35:05,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:35:05,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 22:35:05,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-21 22:35:05,627 INFO L87 Difference]: Start difference. First operand has 106 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:35:05,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:35:05,693 INFO L93 Difference]: Finished difference Result 103 states and 131 transitions. [2021-12-21 22:35:05,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 22:35:05,698 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 131 transitions. [2021-12-21 22:35:05,711 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-12-21 22:35:05,714 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 93 states and 121 transitions. [2021-12-21 22:35:05,715 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2021-12-21 22:35:05,717 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 93 [2021-12-21 22:35:05,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 121 transitions. [2021-12-21 22:35:05,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:35:05,719 INFO L681 BuchiCegarLoop]: Abstraction has 93 states and 121 transitions. [2021-12-21 22:35:05,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 121 transitions. [2021-12-21 22:35:05,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-12-21 22:35:05,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 92 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:35:05,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 121 transitions. [2021-12-21 22:35:05,746 INFO L704 BuchiCegarLoop]: Abstraction has 93 states and 121 transitions. [2021-12-21 22:35:05,746 INFO L587 BuchiCegarLoop]: Abstraction has 93 states and 121 transitions. [2021-12-21 22:35:05,746 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:35:05,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states and 121 transitions. [2021-12-21 22:35:05,747 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-12-21 22:35:05,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:35:05,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:35:05,747 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:35:05,747 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] [2021-12-21 22:35:05,747 INFO L791 eck$LassoCheckResult]: Stem: 314#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 305#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 257#L205 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 241#L198 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 242#L213 main_#t~ret6#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1; 317#L169 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 298#L142 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 299#L229-2 [2021-12-21 22:35:05,748 INFO L793 eck$LassoCheckResult]: Loop: 299#L229-2 assume !false; 249#L230 assume test_~splverifierCounter~0#1 < 4; 250#L231 test_~tmp~2#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 266#L239 assume !(0 != test_~tmp~2#1); 291#L239-2 test_~tmp___0~1#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 243#L249 assume !(0 != test_~tmp___0~1#1); 245#L249-2 test_~tmp___2~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 231#L259 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 232#L267 assume 0 != test_~tmp___1~0#1; 280#L267-2 assume { :begin_inline_timeShift } true; 281#L299 assume !(0 != ~pumpRunning~0); 263#L299-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret12#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 259#L331 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 260#L323-1 assume { :end_inline_processEnvironment__wrappee__base } true; 240#L331-1 assume { :end_inline_processEnvironment } true; 294#L306-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret4#1, __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_~tmp~0#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~0#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 289#L527 __utac_acc__Specification4_spec__1_#t~ret4#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0#1 := __utac_acc__Specification4_spec__1_#t~ret4#1;havoc __utac_acc__Specification4_spec__1_#t~ret4#1; 236#L61 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0#1); 237#L61-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 307#L316 assume { :end_inline_timeShift } true; 299#L229-2 [2021-12-21 22:35:05,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:35:05,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-21 22:35:05,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:35:05,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268869262] [2021-12-21 22:35:05,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:35:05,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:35:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:05,766 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:35:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:05,797 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:35:05,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:35:05,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1425523993, now seen corresponding path program 1 times [2021-12-21 22:35:05,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:35:05,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814878177] [2021-12-21 22:35:05,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:35:05,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:35:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:35:05,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:35:05,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:35:05,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814878177] [2021-12-21 22:35:05,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814878177] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:35:05,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:35:05,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 22:35:05,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76257240] [2021-12-21 22:35:05,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:35:05,820 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:35:05,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:35:05,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 22:35:05,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 22:35:05,821 INFO L87 Difference]: Start difference. First operand 93 states and 121 transitions. cyclomatic complexity: 30 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:35:05,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:35:05,861 INFO L93 Difference]: Finished difference Result 146 states and 184 transitions. [2021-12-21 22:35:05,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 22:35:05,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 146 states and 184 transitions. [2021-12-21 22:35:05,865 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2021-12-21 22:35:05,867 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 146 states to 146 states and 184 transitions. [2021-12-21 22:35:05,867 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 146 [2021-12-21 22:35:05,868 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 146 [2021-12-21 22:35:05,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 146 states and 184 transitions. [2021-12-21 22:35:05,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:35:05,870 INFO L681 BuchiCegarLoop]: Abstraction has 146 states and 184 transitions. [2021-12-21 22:35:05,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states and 184 transitions. [2021-12-21 22:35:05,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-12-21 22:35:05,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 146 states have (on average 1.2602739726027397) internal successors, (184), 145 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:35:05,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 184 transitions. [2021-12-21 22:35:05,882 INFO L704 BuchiCegarLoop]: Abstraction has 146 states and 184 transitions. [2021-12-21 22:35:05,883 INFO L587 BuchiCegarLoop]: Abstraction has 146 states and 184 transitions. [2021-12-21 22:35:05,883 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 22:35:05,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 146 states and 184 transitions. [2021-12-21 22:35:05,884 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2021-12-21 22:35:05,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:35:05,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:35:05,885 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:35:05,885 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:35:05,886 INFO L791 eck$LassoCheckResult]: Stem: 563#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 552#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 500#L205 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 486#L198 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 487#L213 main_#t~ret6#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1; 566#L169 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 545#L142 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 546#L229-2 [2021-12-21 22:35:05,886 INFO L793 eck$LassoCheckResult]: Loop: 546#L229-2 assume !false; 576#L230 assume test_~splverifierCounter~0#1 < 4; 577#L231 test_~tmp~2#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 615#L239 assume !(0 != test_~tmp~2#1); 613#L239-2 test_~tmp___0~1#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 611#L249 assume !(0 != test_~tmp___0~1#1); 534#L249-2 test_~tmp___2~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 476#L259 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 477#L267 assume 0 != test_~tmp___1~0#1; 523#L267-2 assume { :begin_inline_timeShift } true; 524#L299 assume !(0 != ~pumpRunning~0); 521#L299-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret12#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 503#L331 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret22#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 504#L535 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 522#L540 isHighWaterLevel_#t~ret22#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret22#1;havoc isHighWaterLevel_#t~ret22#1; 472#L433 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~2#1 := 0; 473#L433-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 561#L439 processEnvironment_#t~ret12#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret12#1;havoc processEnvironment_#t~ret12#1; 530#L335 assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 481#L323 assume { :end_inline_processEnvironment__wrappee__base } true; 482#L331-1 assume { :end_inline_processEnvironment } true; 609#L306-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret4#1, __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_~tmp~0#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~0#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 586#L527 __utac_acc__Specification4_spec__1_#t~ret4#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0#1 := __utac_acc__Specification4_spec__1_#t~ret4#1;havoc __utac_acc__Specification4_spec__1_#t~ret4#1; 582#L61 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0#1); 579#L61-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 578#L316 assume { :end_inline_timeShift } true; 546#L229-2 [2021-12-21 22:35:05,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:35:05,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-21 22:35:05,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:35:05,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417025381] [2021-12-21 22:35:05,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:35:05,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:35:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:05,907 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:35:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:05,916 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:35:05,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:35:05,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1606746257, now seen corresponding path program 1 times [2021-12-21 22:35:05,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:35:05,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157316016] [2021-12-21 22:35:05,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:35:05,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:35:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:05,922 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:35:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:05,942 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:35:05,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:35:05,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1733187533, now seen corresponding path program 1 times [2021-12-21 22:35:05,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:35:05,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844121070] [2021-12-21 22:35:05,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:35:05,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:35:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:05,969 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:35:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:05,981 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:35:08,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:35:08 BoogieIcfgContainer [2021-12-21 22:35:08,525 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:35:08,525 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:35:08,525 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:35:08,525 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:35:08,526 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:35:05" (3/4) ... [2021-12-21 22:35:08,527 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-21 22:35:08,570 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 22:35:08,570 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:35:08,571 INFO L158 Benchmark]: Toolchain (without parser) took 4427.62ms. Allocated memory was 94.4MB in the beginning and 155.2MB in the end (delta: 60.8MB). Free memory was 54.1MB in the beginning and 82.5MB in the end (delta: -28.4MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2021-12-21 22:35:08,571 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 94.4MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:35:08,571 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.10ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 53.9MB in the beginning and 97.6MB in the end (delta: -43.6MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2021-12-21 22:35:08,572 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.38ms. Allocated memory is still 127.9MB. Free memory was 97.6MB in the beginning and 94.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:35:08,572 INFO L158 Benchmark]: Boogie Preprocessor took 31.92ms. Allocated memory is still 127.9MB. Free memory was 94.6MB in the beginning and 93.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:35:08,572 INFO L158 Benchmark]: RCFGBuilder took 474.59ms. Allocated memory is still 127.9MB. Free memory was 92.5MB in the beginning and 75.3MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-21 22:35:08,573 INFO L158 Benchmark]: BuchiAutomizer took 3451.29ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 75.3MB in the beginning and 84.6MB in the end (delta: -9.3MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2021-12-21 22:35:08,573 INFO L158 Benchmark]: Witness Printer took 45.03ms. Allocated memory is still 155.2MB. Free memory was 84.6MB in the beginning and 82.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:35:08,575 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 94.4MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.10ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 53.9MB in the beginning and 97.6MB in the end (delta: -43.6MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.38ms. Allocated memory is still 127.9MB. Free memory was 97.6MB in the beginning and 94.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.92ms. Allocated memory is still 127.9MB. Free memory was 94.6MB in the beginning and 93.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 474.59ms. Allocated memory is still 127.9MB. Free memory was 92.5MB in the beginning and 75.3MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3451.29ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 75.3MB in the beginning and 84.6MB in the end (delta: -9.3MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. * Witness Printer took 45.03ms. Allocated memory is still 155.2MB. Free memory was 84.6MB in the beginning and 82.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 146 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 146 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 473 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 473 mSDsluCounter, 343 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 270 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 229]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@177b109c=29, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ad295bc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77f3cbb5=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d3a2837=0, retValue_acc=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@394884e7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5261d331=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24a33537=0, methaneLevelCritical=0, retValue_acc=0, retValue_acc=1, \result=1, \result=1, retValue_acc=1, tmp=1, tmp=1, tmp___2=0, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a098ae9=0, \result=0, tmp=1, tmp=0, head=0, retValue_acc=0, \result=1, tmp___1=29, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@238cf82b=0, \result=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 229]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L79] int cleanupTimeShifts = 4; [L292] int pumpRunning = 0; [L293] int systemActive = 1; [L452] int waterLevel = 1; [L453] int methaneLevelCritical = 0; [L724] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L160] int retValue_acc ; [L161] int tmp ; [L165] FCALL select_helpers() [L166] FCALL select_features() [L167] CALL, EXPR valid_product() [L209] int retValue_acc ; [L212] retValue_acc = 1 [L213] return (retValue_acc); [L167] RET, EXPR valid_product() [L167] tmp = valid_product() [L169] COND TRUE \read(tmp) [L171] FCALL setup() [L172] CALL runTest() [L151] CALL test() [L220] int splverifierCounter ; [L221] int tmp ; [L222] int tmp___0 ; [L223] int tmp___1 ; [L224] int tmp___2 ; [L227] splverifierCounter = 0 Loop: [L229] COND TRUE 1 [L231] COND TRUE splverifierCounter < 4 [L237] tmp = __VERIFIER_nondet_int() [L239] COND FALSE !(\read(tmp)) [L247] tmp___0 = __VERIFIER_nondet_int() [L249] COND FALSE !(\read(tmp___0)) [L257] tmp___2 = __VERIFIER_nondet_int() [L259] COND FALSE !(\read(tmp___2)) [L265] tmp___1 = __VERIFIER_nondet_int() [L267] COND TRUE \read(tmp___1) [L274] CALL timeShift() [L299] COND FALSE !(\read(pumpRunning)) [L306] COND TRUE \read(systemActive) [L308] CALL processEnvironment() [L328] int tmp ; [L331] COND TRUE ! pumpRunning [L333] CALL, EXPR isHighWaterLevel() [L425] int retValue_acc ; [L426] int tmp ; [L427] int tmp___0 ; [L431] CALL, EXPR isHighWaterSensorDry() [L532] int retValue_acc ; [L535] COND TRUE waterLevel < 2 [L536] retValue_acc = 1 [L537] return (retValue_acc); [L431] RET, EXPR isHighWaterSensorDry() [L431] tmp = isHighWaterSensorDry() [L433] COND TRUE \read(tmp) [L434] tmp___0 = 0 [L438] retValue_acc = tmp___0 [L439] return (retValue_acc); [L333] RET, EXPR isHighWaterLevel() [L333] tmp = isHighWaterLevel() [L335] COND FALSE !(\read(tmp)) [L341] FCALL processEnvironment__wrappee__base() [L308] RET processEnvironment() [L314] CALL __utac_acc__Specification4_spec__1() [L54] int tmp ; [L55] int tmp___0 ; [L59] CALL, EXPR getWaterLevel() [L523] int retValue_acc ; [L526] retValue_acc = waterLevel [L527] return (retValue_acc); [L59] RET, EXPR getWaterLevel() [L59] tmp = getWaterLevel() [L61] COND FALSE !(tmp == 0) [L314] RET __utac_acc__Specification4_spec__1() [L274] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-21 22:35:08,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)