./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 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_spec3_product12.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 263a891a69e751217ac30b9b114998fc0120cc8bcbbdd67ab0f365106c54376d --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 15:26:17,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 15:26:17,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 15:26:17,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 15:26:17,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 15:26:17,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 15:26:17,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 15:26:17,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 15:26:17,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 15:26:17,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 15:26:17,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 15:26:17,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 15:26:17,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 15:26:17,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 15:26:17,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 15:26:17,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 15:26:17,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 15:26:17,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 15:26:17,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 15:26:17,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 15:26:17,573 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 15:26:17,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 15:26:17,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 15:26:17,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 15:26:17,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 15:26:17,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 15:26:17,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 15:26:17,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 15:26:17,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 15:26:17,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 15:26:17,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 15:26:17,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 15:26:17,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 15:26:17,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 15:26:17,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 15:26:17,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 15:26:17,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 15:26:17,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 15:26:17,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 15:26:17,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 15:26:17,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 15:26:17,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 15:26:17,598 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-23 15:26:17,627 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 15:26:17,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 15:26:17,628 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 15:26:17,628 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 15:26:17,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 15:26:17,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 15:26:17,630 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 15:26:17,631 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 15:26:17,631 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 15:26:17,632 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 15:26:17,632 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 15:26:17,632 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 15:26:17,632 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 15:26:17,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 15:26:17,633 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 15:26:17,633 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 15:26:17,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 15:26:17,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 15:26:17,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 15:26:17,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 15:26:17,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 15:26:17,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 15:26:17,635 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 15:26:17,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 15:26:17,636 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 15:26:17,636 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 15:26:17,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 15:26:17,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 15:26:17,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 15:26:17,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 15:26:17,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 15:26:17,638 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 15:26:17,638 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 263a891a69e751217ac30b9b114998fc0120cc8bcbbdd67ab0f365106c54376d [2022-07-23 15:26:17,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 15:26:17,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 15:26:17,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 15:26:17,920 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 15:26:17,921 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 15:26:17,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2022-07-23 15:26:17,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c75c82e90/5c157b656d1b4bd49c5d9c11e31ce493/FLAGc11a8101b [2022-07-23 15:26:18,427 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 15:26:18,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2022-07-23 15:26:18,436 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c75c82e90/5c157b656d1b4bd49c5d9c11e31ce493/FLAGc11a8101b [2022-07-23 15:26:18,767 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c75c82e90/5c157b656d1b4bd49c5d9c11e31ce493 [2022-07-23 15:26:18,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 15:26:18,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 15:26:18,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 15:26:18,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 15:26:18,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 15:26:18,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:26:18" (1/1) ... [2022-07-23 15:26:18,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d931f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:18, skipping insertion in model container [2022-07-23 15:26:18,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:26:18" (1/1) ... [2022-07-23 15:26:18,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 15:26:18,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 15:26:19,159 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c[17359,17372] [2022-07-23 15:26:19,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:26:19,171 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 15:26:19,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c[17359,17372] [2022-07-23 15:26:19,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:26:19,273 INFO L208 MainTranslator]: Completed translation [2022-07-23 15:26:19,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:19 WrapperNode [2022-07-23 15:26:19,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 15:26:19,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 15:26:19,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 15:26:19,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 15:26:19,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:19" (1/1) ... [2022-07-23 15:26:19,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:19" (1/1) ... [2022-07-23 15:26:19,349 INFO L137 Inliner]: procedures = 52, calls = 150, calls flagged for inlining = 47, calls inlined = 38, statements flattened = 321 [2022-07-23 15:26:19,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 15:26:19,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 15:26:19,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 15:26:19,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 15:26:19,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:19" (1/1) ... [2022-07-23 15:26:19,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:19" (1/1) ... [2022-07-23 15:26:19,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:19" (1/1) ... [2022-07-23 15:26:19,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:19" (1/1) ... [2022-07-23 15:26:19,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:19" (1/1) ... [2022-07-23 15:26:19,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:19" (1/1) ... [2022-07-23 15:26:19,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:19" (1/1) ... [2022-07-23 15:26:19,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 15:26:19,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 15:26:19,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 15:26:19,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 15:26:19,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:19" (1/1) ... [2022-07-23 15:26:19,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:26:19,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:26:19,441 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) [2022-07-23 15:26:19,463 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 [2022-07-23 15:26:19,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 15:26:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 15:26:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 15:26:19,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 15:26:19,543 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 15:26:19,544 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 15:26:19,880 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 15:26:19,886 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 15:26:19,886 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 15:26:19,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:26:19 BoogieIcfgContainer [2022-07-23 15:26:19,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 15:26:19,889 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 15:26:19,889 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 15:26:19,896 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 15:26:19,897 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:26:19,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 03:26:18" (1/3) ... [2022-07-23 15:26:19,912 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d6f8bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:26:19, skipping insertion in model container [2022-07-23 15:26:19,912 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:26:19,912 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:19" (2/3) ... [2022-07-23 15:26:19,912 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d6f8bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:26:19, skipping insertion in model container [2022-07-23 15:26:19,912 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:26:19,913 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:26:19" (3/3) ... [2022-07-23 15:26:19,914 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2022-07-23 15:26:19,975 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 15:26:19,975 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 15:26:19,976 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 15:26:19,976 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 15:26:19,976 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 15:26:19,976 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 15:26:19,976 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 15:26:19,976 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 15:26:19,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 85 states have internal predecessors, (117), 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) [2022-07-23 15:26:20,004 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2022-07-23 15:26:20,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:20,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:20,012 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:20,012 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:20,012 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 15:26:20,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 85 states have internal predecessors, (117), 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) [2022-07-23 15:26:20,019 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2022-07-23 15:26:20,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:20,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:20,020 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:20,020 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:20,030 INFO L752 eck$LassoCheckResult]: Stem: 65#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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 54#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 38#L421true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 72#L414true 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; 19#L429true main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 53#L882true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 59#L859true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 84#L104-2true [2022-07-23 15:26:20,031 INFO L754 eck$LassoCheckResult]: Loop: 84#L104-2true assume !false; 24#L105true assume test_~splverifierCounter~0#1 < 4; 61#L106true test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 69#L114true assume !(0 != test_~tmp~1#1); 55#L114-2true test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 18#L124true assume !(0 != test_~tmp___0~1#1); 80#L124-2true test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 70#L134true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 42#L142true assume !(0 != test_~tmp___1~1#1); 35#L142-2true assume { :begin_inline_timeShift } true; 6#L175true assume !(0 != ~pumpRunning~0); 10#L175-2true assume !(0 != ~systemActive~0); 85#L182-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 32#L359true __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 7#L63true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 75#L69-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 34#L192true assume { :end_inline_timeShift } true; 84#L104-2true [2022-07-23 15:26:20,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:20,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-23 15:26:20,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:20,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823992941] [2022-07-23 15:26:20,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:20,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:20,195 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:20,275 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:20,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:20,277 INFO L85 PathProgramCache]: Analyzing trace with hash 522900833, now seen corresponding path program 1 times [2022-07-23 15:26:20,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:20,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587420768] [2022-07-23 15:26:20,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:20,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:20,291 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:20,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:20,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:20,308 INFO L85 PathProgramCache]: Analyzing trace with hash -408780771, now seen corresponding path program 1 times [2022-07-23 15:26:20,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:20,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460684319] [2022-07-23 15:26:20,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:20,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:26:20,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:26:20,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:26:20,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460684319] [2022-07-23 15:26:20,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460684319] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:26:20,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:26:20,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 15:26:20,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276944508] [2022-07-23 15:26:20,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:26:20,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:26:20,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 15:26:20,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-23 15:26:20,669 INFO L87 Difference]: Start difference. First operand has 86 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 85 states have internal predecessors, (117), 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) [2022-07-23 15:26:20,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:26:20,813 INFO L93 Difference]: Finished difference Result 303 states and 386 transitions. [2022-07-23 15:26:20,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 15:26:20,821 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 303 states and 386 transitions. [2022-07-23 15:26:20,835 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 194 [2022-07-23 15:26:20,846 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 303 states to 263 states and 346 transitions. [2022-07-23 15:26:20,847 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 263 [2022-07-23 15:26:20,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 263 [2022-07-23 15:26:20,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 263 states and 346 transitions. [2022-07-23 15:26:20,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:26:20,857 INFO L369 hiAutomatonCegarLoop]: Abstraction has 263 states and 346 transitions. [2022-07-23 15:26:20,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states and 346 transitions. [2022-07-23 15:26:20,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 131. [2022-07-23 15:26:20,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 131 states have (on average 1.3206106870229009) internal successors, (173), 130 states have internal predecessors, (173), 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) [2022-07-23 15:26:20,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 173 transitions. [2022-07-23 15:26:20,901 INFO L392 hiAutomatonCegarLoop]: Abstraction has 131 states and 173 transitions. [2022-07-23 15:26:20,901 INFO L374 stractBuchiCegarLoop]: Abstraction has 131 states and 173 transitions. [2022-07-23 15:26:20,901 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 15:26:20,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states and 173 transitions. [2022-07-23 15:26:20,903 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 95 [2022-07-23 15:26:20,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:20,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:20,904 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:20,905 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:20,905 INFO L752 eck$LassoCheckResult]: Stem: 477#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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 472#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 453#L421 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 454#L414 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; 432#L429 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 433#L882 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 471#L859 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 450#L104-2 [2022-07-23 15:26:20,906 INFO L754 eck$LassoCheckResult]: Loop: 450#L104-2 assume !false; 439#L105 assume test_~splverifierCounter~0#1 < 4; 440#L106 test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 475#L114 assume !(0 != test_~tmp~1#1); 473#L114-2 test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 430#L124 assume !(0 != test_~tmp___0~1#1); 428#L124-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 479#L134 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 480#L312 assume { :end_inline_startSystem } true; 451#L142-2 assume { :begin_inline_timeShift } true; 413#L175 assume !(0 != ~pumpRunning~0); 414#L175-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 420#L199 assume { :end_inline_processEnvironment } true; 476#L182-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 447#L359 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 416#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 417#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 449#L192 assume { :end_inline_timeShift } true; 450#L104-2 [2022-07-23 15:26:20,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:20,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-23 15:26:20,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:20,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125062150] [2022-07-23 15:26:20,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:20,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:20,941 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:20,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:20,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:20,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1793647139, now seen corresponding path program 1 times [2022-07-23 15:26:20,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:20,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274248241] [2022-07-23 15:26:20,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:20,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:20,978 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:20,983 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:20,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:20,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1318678809, now seen corresponding path program 1 times [2022-07-23 15:26:20,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:20,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120492342] [2022-07-23 15:26:20,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:20,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:26:21,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:26:21,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:26:21,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120492342] [2022-07-23 15:26:21,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120492342] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:26:21,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:26:21,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 15:26:21,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594930216] [2022-07-23 15:26:21,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:26:21,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:26:21,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 15:26:21,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 15:26:21,169 INFO L87 Difference]: Start difference. First operand 131 states and 173 transitions. cyclomatic complexity: 45 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2022-07-23 15:26:21,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:26:21,257 INFO L93 Difference]: Finished difference Result 435 states and 577 transitions. [2022-07-23 15:26:21,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 15:26:21,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 435 states and 577 transitions. [2022-07-23 15:26:21,263 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 337 [2022-07-23 15:26:21,265 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 435 states to 435 states and 577 transitions. [2022-07-23 15:26:21,266 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 435 [2022-07-23 15:26:21,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 435 [2022-07-23 15:26:21,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 435 states and 577 transitions. [2022-07-23 15:26:21,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:26:21,268 INFO L369 hiAutomatonCegarLoop]: Abstraction has 435 states and 577 transitions. [2022-07-23 15:26:21,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states and 577 transitions. [2022-07-23 15:26:21,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 255. [2022-07-23 15:26:21,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 255 states have (on average 1.2980392156862746) internal successors, (331), 254 states have internal predecessors, (331), 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) [2022-07-23 15:26:21,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 331 transitions. [2022-07-23 15:26:21,292 INFO L392 hiAutomatonCegarLoop]: Abstraction has 255 states and 331 transitions. [2022-07-23 15:26:21,292 INFO L374 stractBuchiCegarLoop]: Abstraction has 255 states and 331 transitions. [2022-07-23 15:26:21,292 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 15:26:21,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 255 states and 331 transitions. [2022-07-23 15:26:21,295 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 190 [2022-07-23 15:26:21,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:21,295 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:21,296 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:21,297 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:21,297 INFO L752 eck$LassoCheckResult]: Stem: 1076#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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1064#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 1042#L421 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1043#L414 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; 1017#L429 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 1018#L882 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 1063#L859 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1071#L104-2 [2022-07-23 15:26:21,297 INFO L754 eck$LassoCheckResult]: Loop: 1071#L104-2 assume !false; 1093#L105 assume test_~splverifierCounter~0#1 < 4; 1166#L106 test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1165#L114 assume !(0 != test_~tmp~1#1); 1164#L114-2 test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 1015#L124 assume !(0 != test_~tmp___0~1#1); 1012#L124-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 1090#L134 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 1049#L142 assume !(0 != test_~tmp___1~1#1); 1040#L142-2 assume { :begin_inline_timeShift } true; 998#L175 assume !(0 != ~pumpRunning~0); 999#L175-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 1004#L199 assume { :end_inline_processEnvironment } true; 1073#L182-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1094#L359 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 1001#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 1002#L391 __utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 1025#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 1169#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1168#L192 assume { :end_inline_timeShift } true; 1071#L104-2 [2022-07-23 15:26:21,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:21,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-23 15:26:21,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:21,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27567649] [2022-07-23 15:26:21,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:21,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:21,330 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:21,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:21,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:21,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1730824696, now seen corresponding path program 1 times [2022-07-23 15:26:21,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:21,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003224522] [2022-07-23 15:26:21,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:21,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:21,362 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:21,375 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:21,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:21,376 INFO L85 PathProgramCache]: Analyzing trace with hash 916144588, now seen corresponding path program 1 times [2022-07-23 15:26:21,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:21,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974187359] [2022-07-23 15:26:21,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:21,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:21,401 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:21,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:24,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 03:26:24 BoogieIcfgContainer [2022-07-23 15:26:24,415 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 15:26:24,416 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 15:26:24,416 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 15:26:24,416 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 15:26:24,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:26:19" (3/4) ... [2022-07-23 15:26:24,419 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-23 15:26:24,463 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 15:26:24,464 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 15:26:24,465 INFO L158 Benchmark]: Toolchain (without parser) took 5693.30ms. Allocated memory was 90.2MB in the beginning and 146.8MB in the end (delta: 56.6MB). Free memory was 55.5MB in the beginning and 94.1MB in the end (delta: -38.7MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-07-23 15:26:24,465 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory was 54.8MB in the beginning and 54.7MB in the end (delta: 49.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:26:24,466 INFO L158 Benchmark]: CACSL2BoogieTranslator took 502.27ms. Allocated memory is still 90.2MB. Free memory was 55.3MB in the beginning and 57.1MB in the end (delta: -1.8MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-07-23 15:26:24,466 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.45ms. Allocated memory is still 90.2MB. Free memory was 57.1MB in the beginning and 54.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-23 15:26:24,466 INFO L158 Benchmark]: Boogie Preprocessor took 50.08ms. Allocated memory is still 90.2MB. Free memory was 54.4MB in the beginning and 52.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:26:24,467 INFO L158 Benchmark]: RCFGBuilder took 486.33ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 52.8MB in the beginning and 88.1MB in the end (delta: -35.3MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2022-07-23 15:26:24,468 INFO L158 Benchmark]: BuchiAutomizer took 4525.70ms. Allocated memory was 115.3MB in the beginning and 146.8MB in the end (delta: 31.5MB). Free memory was 88.1MB in the beginning and 96.2MB in the end (delta: -8.1MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. [2022-07-23 15:26:24,468 INFO L158 Benchmark]: Witness Printer took 48.31ms. Allocated memory is still 146.8MB. Free memory was 96.2MB in the beginning and 94.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:26:24,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory was 54.8MB in the beginning and 54.7MB in the end (delta: 49.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 502.27ms. Allocated memory is still 90.2MB. Free memory was 55.3MB in the beginning and 57.1MB in the end (delta: -1.8MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.45ms. Allocated memory is still 90.2MB. Free memory was 57.1MB in the beginning and 54.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.08ms. Allocated memory is still 90.2MB. Free memory was 54.4MB in the beginning and 52.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 486.33ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 52.8MB in the beginning and 88.1MB in the end (delta: -35.3MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 4525.70ms. Allocated memory was 115.3MB in the beginning and 146.8MB in the end (delta: 31.5MB). Free memory was 88.1MB in the beginning and 96.2MB in the end (delta: -8.1MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. * Witness Printer took 48.31ms. Allocated memory is still 146.8MB. Free memory was 96.2MB in the beginning and 94.1MB 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 255 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.9s. 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 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 312 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 876 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 876 mSDsluCounter, 1341 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1105 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 236 mSDtfsCounter, 93 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 104]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@482b5570=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@783fa3c3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4684372b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68e0a8d7=0, methaneLevelCritical=0, tmp___0=1, \result=0, tmp=0, retValue_acc=1, \result=1, retValue_acc=0, retValue_acc=0, tmp___1=0, tmp___2=0, tmp=0, tmp=1, cleanupTimeShifts=4, \result=0, head=0, retValue_acc=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71c18b4f=0, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40b966af=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ec0cb1a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3aad19f8=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 104]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L316] int waterLevel = 1; [L317] int methaneLevelCritical = 0; [L603] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L800] int cleanupTimeShifts = 4; [L873] int retValue_acc ; [L874] int tmp ; [L878] FCALL select_helpers() [L879] FCALL select_features() [L880] CALL, EXPR valid_product() [L425] int retValue_acc ; [L428] retValue_acc = 1 [L429] return (retValue_acc); [L880] RET, EXPR valid_product() [L880] tmp = valid_product() [L882] COND TRUE \read(tmp) [L884] FCALL setup() [L885] CALL runTest() [L867] CALL test() [L95] int splverifierCounter ; [L96] int tmp ; [L97] int tmp___0 ; [L98] int tmp___1 ; [L99] int tmp___2 ; [L102] splverifierCounter = 0 Loop: [L104] COND TRUE 1 [L106] COND TRUE splverifierCounter < 4 [L112] tmp = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp)) [L122] tmp___0 = __VERIFIER_nondet_int() [L124] COND FALSE !(\read(tmp___0)) [L132] tmp___2 = __VERIFIER_nondet_int() [L134] COND FALSE !(\read(tmp___2)) [L140] tmp___1 = __VERIFIER_nondet_int() [L142] COND FALSE !(\read(tmp___1)) [L151] CALL timeShift() [L175] COND FALSE !(\read(pumpRunning)) [L182] COND TRUE \read(systemActive) [L184] FCALL processEnvironment() [L190] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L355] int retValue_acc ; [L358] retValue_acc = methaneLevelCritical [L359] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L387] int retValue_acc ; [L390] retValue_acc = waterLevel [L391] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L190] RET __utac_acc__Specification3_spec__1() [L151] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-23 15:26:24,527 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)