./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 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_product27.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 2d7e0a730b4d799fc1a50a54053b5e66ba5f6d84 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 20:23:46,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:23:46,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:23:46,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:23:46,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:23:46,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:23:46,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:23:46,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:23:46,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:23:46,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:23:46,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:23:46,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:23:46,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:23:46,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:23:46,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:23:46,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:23:46,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:23:46,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:23:46,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:23:46,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:23:46,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:23:46,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:23:46,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:23:46,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:23:46,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:23:46,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:23:46,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:23:46,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:23:46,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:23:46,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:23:46,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:23:46,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:23:46,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:23:46,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:23:46,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:23:46,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:23:46,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:23:46,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:23:46,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:23:46,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:23:46,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:23:46,880 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:23:46,921 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:23:46,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:23:46,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:23:46,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:23:46,923 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:23:46,923 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:23:46,924 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:23:46,924 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:23:46,925 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:23:46,925 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:23:46,925 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:23:46,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:23:46,926 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:23:46,926 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:23:46,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:23:46,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:23:46,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:23:46,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:23:46,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:23:46,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:23:46,927 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:23:46,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:23:46,927 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:23:46,928 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:23:46,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:23:46,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:23:46,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:23:46,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:23:46,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:23:46,929 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:23:46,930 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:23:46,930 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d7e0a730b4d799fc1a50a54053b5e66ba5f6d84 [2021-07-06 20:23:47,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:23:47,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:23:47,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:23:47,247 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:23:47,247 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:23:47,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2021-07-06 20:23:47,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0a89b5a2/e94f7d8e17c743d6b7bf8eaac25318dd/FLAG860b7da01 [2021-07-06 20:23:47,750 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:23:47,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2021-07-06 20:23:47,760 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0a89b5a2/e94f7d8e17c743d6b7bf8eaac25318dd/FLAG860b7da01 [2021-07-06 20:23:48,105 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0a89b5a2/e94f7d8e17c743d6b7bf8eaac25318dd [2021-07-06 20:23:48,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:23:48,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:23:48,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:23:48,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:23:48,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:23:48,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:23:48" (1/1) ... [2021-07-06 20:23:48,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a49799d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:23:48, skipping insertion in model container [2021-07-06 20:23:48,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:23:48" (1/1) ... [2021-07-06 20:23:48,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:23:48,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:23:48,299 WARN L224 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_product27.cil.c[5284,5297] [2021-07-06 20:23:48,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:23:48,370 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:23:48,441 WARN L224 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_product27.cil.c[5284,5297] [2021-07-06 20:23:48,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:23:48,536 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:23:48,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:23:48 WrapperNode [2021-07-06 20:23:48,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:23:48,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:23:48,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:23:48,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:23:48,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:23:48" (1/1) ... [2021-07-06 20:23:48,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:23:48" (1/1) ... [2021-07-06 20:23:48,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:23:48,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:23:48,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:23:48,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:23:48,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:23:48" (1/1) ... [2021-07-06 20:23:48,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:23:48" (1/1) ... [2021-07-06 20:23:48,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:23:48" (1/1) ... [2021-07-06 20:23:48,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:23:48" (1/1) ... [2021-07-06 20:23:48,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:23:48" (1/1) ... [2021-07-06 20:23:48,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:23:48" (1/1) ... [2021-07-06 20:23:48,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:23:48" (1/1) ... [2021-07-06 20:23:48,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:23:48,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:23:48,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:23:48,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:23:48,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:23:48" (1/1) ... [2021-07-06 20:23:48,622 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:23:48,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:23:48,653 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) [2021-07-06 20:23:48,665 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 [2021-07-06 20:23:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:23:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:23:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:23:48,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:23:49,460 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:23:49,468 INFO L299 CfgBuilder]: Removed 106 assume(true) statements. [2021-07-06 20:23:49,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:23:49 BoogieIcfgContainer [2021-07-06 20:23:49,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:23:49,471 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:23:49,471 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:23:49,473 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:23:49,474 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:23:49,475 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:23:48" (1/3) ... [2021-07-06 20:23:49,476 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22bba376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:23:49, skipping insertion in model container [2021-07-06 20:23:49,476 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:23:49,476 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:23:48" (2/3) ... [2021-07-06 20:23:49,477 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22bba376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:23:49, skipping insertion in model container [2021-07-06 20:23:49,477 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:23:49,477 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:23:49" (3/3) ... [2021-07-06 20:23:49,478 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2021-07-06 20:23:49,522 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:23:49,523 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:23:49,523 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:23:49,523 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:23:49,523 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:23:49,523 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:23:49,523 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:23:49,524 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:23:49,540 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 80 states, 79 states have (on average 1.518987341772152) internal successors, (120), 79 states have internal predecessors, (120), 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) [2021-07-06 20:23:49,565 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-07-06 20:23:49,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:23:49,566 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:23:49,573 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:23:49,574 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:23:49,574 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:23:49,575 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 80 states, 79 states have (on average 1.518987341772152) internal successors, (120), 79 states have internal predecessors, (120), 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) [2021-07-06 20:23:49,586 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-07-06 20:23:49,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:23:49,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:23:49,589 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:23:49,589 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:23:49,595 INFO L791 eck$LassoCheckResult]: Stem: 35#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 17#L-1true havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 64#L378true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 67#L386true main_#t~ret80 := valid_product_#res;main_~tmp~8 := main_#t~ret80;havoc main_#t~ret80; 11#L928true assume 0 != main_~tmp~8; 55#L905true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3#L325-1true [2021-07-06 20:23:49,598 INFO L793 eck$LassoCheckResult]: Loop: 3#L325-1true assume !false; 4#L58true assume test_~splverifierCounter~0 < 4; 32#L59true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 63#L67true assume !(0 != test_~tmp~0); 61#L67-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 41#L77true assume !(0 != test_~tmp___0~0); 38#L77-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 27#L87true assume 0 != test_~tmp___2~0; 49#L93-1true assume !(0 != ~pumpRunning~0); 80#L130true assume !(0 != ~systemActive~0); 53#L137true havoc __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 12#L800true __utac_acc__Specification3_spec__1_#t~ret31 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret31;havoc __utac_acc__Specification3_spec__1_#t~ret31; 54#L319true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 3#L325-1true [2021-07-06 20:23:49,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:23:49,602 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-07-06 20:23:49,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:23:49,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428631963] [2021-07-06 20:23:49,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:23:49,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:23:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:23:49,853 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:23:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:23:49,957 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:23:50,019 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:23:50,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:23:50,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1673095042, now seen corresponding path program 1 times [2021-07-06 20:23:50,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:23:50,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582783215] [2021-07-06 20:23:50,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:23:50,024 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:23:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:23:50,029 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:23:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:23:50,031 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:23:50,035 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:23:50,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:23:50,036 INFO L82 PathProgramCache]: Analyzing trace with hash 41183896, now seen corresponding path program 1 times [2021-07-06 20:23:50,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:23:50,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864693585] [2021-07-06 20:23:50,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:23:50,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:23:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:23:50,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:23:50,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:23:50,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:23:50,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:23:50,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:23:50,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:23:50,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:23:50,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 20:23:50,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:23:50,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:23:50,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:23:50,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:23:50,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864693585] [2021-07-06 20:23:50,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864693585] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:23:50,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:23:50,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-06 20:23:50,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498675625] [2021-07-06 20:23:50,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:23:50,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-06 20:23:50,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:23:50,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-06 20:23:50,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-06 20:23:50,247 INFO L87 Difference]: Start difference. First operand has 80 states, 79 states have (on average 1.518987341772152) internal successors, (120), 79 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-07-06 20:23:50,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:23:50,428 INFO L93 Difference]: Finished difference Result 210 states and 291 transitions. [2021-07-06 20:23:50,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-06 20:23:50,430 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 291 transitions. [2021-07-06 20:23:50,434 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 133 [2021-07-06 20:23:50,438 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 189 states and 270 transitions. [2021-07-06 20:23:50,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 189 [2021-07-06 20:23:50,440 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 189 [2021-07-06 20:23:50,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 189 states and 270 transitions. [2021-07-06 20:23:50,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:23:50,442 INFO L681 BuchiCegarLoop]: Abstraction has 189 states and 270 transitions. [2021-07-06 20:23:50,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states and 270 transitions. [2021-07-06 20:23:50,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 120. [2021-07-06 20:23:50,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 1.425) internal successors, (171), 119 states have internal predecessors, (171), 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) [2021-07-06 20:23:50,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 171 transitions. [2021-07-06 20:23:50,471 INFO L704 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2021-07-06 20:23:50,471 INFO L587 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2021-07-06 20:23:50,472 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:23:50,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 171 transitions. [2021-07-06 20:23:50,473 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2021-07-06 20:23:50,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:23:50,473 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:23:50,474 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:23:50,474 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:23:50,474 INFO L791 eck$LassoCheckResult]: Stem: 355#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 331#L-1 havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 332#L378 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 377#L386 main_#t~ret80 := valid_product_#res;main_~tmp~8 := main_#t~ret80;havoc main_#t~ret80; 324#L928 assume 0 != main_~tmp~8; 325#L905 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 308#L325-1 [2021-07-06 20:23:50,474 INFO L793 eck$LassoCheckResult]: Loop: 308#L325-1 assume !false; 309#L58 assume test_~splverifierCounter~0 < 4; 310#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 353#L67 assume !(0 != test_~tmp~0); 345#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 359#L77 assume !(0 != test_~tmp___0~0); 357#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 346#L87 assume 0 != test_~tmp___2~0; 347#L93-1 assume !(0 != ~pumpRunning~0); 365#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 376#L162 assume !(0 != ~pumpRunning~0); 363#L137 havoc __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 326#L800 __utac_acc__Specification3_spec__1_#t~ret31 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret31;havoc __utac_acc__Specification3_spec__1_#t~ret31; 327#L319 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 308#L325-1 [2021-07-06 20:23:50,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:23:50,475 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-07-06 20:23:50,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:23:50,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169493270] [2021-07-06 20:23:50,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:23:50,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:23:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:23:50,519 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:23:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:23:50,549 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:23:50,559 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:23:50,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:23:50,560 INFO L82 PathProgramCache]: Analyzing trace with hash -353331282, now seen corresponding path program 1 times [2021-07-06 20:23:50,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:23:50,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065674067] [2021-07-06 20:23:50,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:23:50,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:23:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:23:50,564 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:23:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:23:50,567 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:23:50,569 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:23:50,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:23:50,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1249708244, now seen corresponding path program 1 times [2021-07-06 20:23:50,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:23:50,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058143181] [2021-07-06 20:23:50,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:23:50,571 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:23:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:23:50,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:23:50,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:23:50,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:23:50,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:23:50,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:23:50,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:23:50,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:23:50,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:23:50,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058143181] [2021-07-06 20:23:50,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058143181] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:23:50,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:23:50,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:23:50,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492264520] [2021-07-06 20:23:50,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:23:50,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-06 20:23:50,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:23:50,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-06 20:23:50,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-06 20:23:50,674 INFO L87 Difference]: Start difference. First operand 120 states and 171 transitions. cyclomatic complexity: 54 Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 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) [2021-07-06 20:23:50,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:23:50,762 INFO L93 Difference]: Finished difference Result 397 states and 578 transitions. [2021-07-06 20:23:50,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-06 20:23:50,763 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 397 states and 578 transitions. [2021-07-06 20:23:50,766 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 294 [2021-07-06 20:23:50,769 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 397 states to 397 states and 578 transitions. [2021-07-06 20:23:50,784 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 397 [2021-07-06 20:23:50,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 397 [2021-07-06 20:23:50,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 397 states and 578 transitions. [2021-07-06 20:23:50,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:23:50,788 INFO L681 BuchiCegarLoop]: Abstraction has 397 states and 578 transitions. [2021-07-06 20:23:50,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states and 578 transitions. [2021-07-06 20:23:50,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 234. [2021-07-06 20:23:50,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 234 states have (on average 1.4017094017094016) internal successors, (328), 233 states have internal predecessors, (328), 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) [2021-07-06 20:23:50,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 328 transitions. [2021-07-06 20:23:50,806 INFO L704 BuchiCegarLoop]: Abstraction has 234 states and 328 transitions. [2021-07-06 20:23:50,806 INFO L587 BuchiCegarLoop]: Abstraction has 234 states and 328 transitions. [2021-07-06 20:23:50,806 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-07-06 20:23:50,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 328 transitions. [2021-07-06 20:23:50,808 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 168 [2021-07-06 20:23:50,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:23:50,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:23:50,808 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:23:50,808 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:23:50,809 INFO L791 eck$LassoCheckResult]: Stem: 891#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 866#L-1 havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 867#L378 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 927#L386 main_#t~ret80 := valid_product_#res;main_~tmp~8 := main_#t~ret80;havoc main_#t~ret80; 859#L928 assume 0 != main_~tmp~8; 860#L905 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 914#L325-1 [2021-07-06 20:23:50,809 INFO L793 eck$LassoCheckResult]: Loop: 914#L325-1 assume !false; 975#L58 assume test_~splverifierCounter~0 < 4; 888#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 889#L67 assume !(0 != test_~tmp~0); 878#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 898#L77 assume !(0 != test_~tmp___0~0); 896#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 881#L87 assume 0 != test_~tmp___2~0; 882#L93-1 assume !(0 != ~pumpRunning~0); 905#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 926#L162 assume !(0 != ~pumpRunning~0); 903#L137 havoc __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 911#L800 __utac_acc__Specification3_spec__1_#t~ret31 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret31;havoc __utac_acc__Specification3_spec__1_#t~ret31; 912#L319 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 913#L832 __utac_acc__Specification3_spec__1_#t~ret32 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret32;havoc __utac_acc__Specification3_spec__1_#t~ret32; 976#L325 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 914#L325-1 [2021-07-06 20:23:50,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:23:50,809 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-07-06 20:23:50,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:23:50,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667504561] [2021-07-06 20:23:50,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:23:50,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:23:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:23:50,872 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:23:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:23:50,902 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:23:50,911 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:23:50,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:23:50,912 INFO L82 PathProgramCache]: Analyzing trace with hash -248939424, now seen corresponding path program 1 times [2021-07-06 20:23:50,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:23:50,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850119697] [2021-07-06 20:23:50,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:23:50,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:23:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:23:50,916 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:23:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:23:50,919 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:23:50,921 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:23:50,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:23:50,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1621214202, now seen corresponding path program 1 times [2021-07-06 20:23:50,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:23:50,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137042309] [2021-07-06 20:23:50,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:23:50,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:23:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:23:50,948 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:23:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:23:50,992 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:23:51,004 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:23:51,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:23:51,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-07-06 20:24:32,623 WARN L205 SmtUtils]: Spent 41.54 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-07-06 20:24:32,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:24:32,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2127 [2021-07-06 20:24:53,499 WARN L205 SmtUtils]: Spent 20.78 s on a formula simplification that was a NOOP. DAG size: 433 [2021-07-06 20:24:53,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:24:53 BoogieIcfgContainer [2021-07-06 20:24:53,606 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:24:53,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:24:53,607 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:24:53,607 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:24:53,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:23:49" (3/4) ... [2021-07-06 20:24:53,609 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:24:53,641 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:24:53,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:24:53,642 INFO L168 Benchmark]: Toolchain (without parser) took 65533.19 ms. Allocated memory was 54.5 MB in the beginning and 111.1 MB in the end (delta: 56.6 MB). Free memory was 31.3 MB in the beginning and 58.0 MB in the end (delta: -26.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2021-07-06 20:24:53,643 INFO L168 Benchmark]: CDTParser took 1.57 ms. Allocated memory is still 54.5 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:24:53,643 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.45 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.1 MB in the beginning and 42.7 MB in the end (delta: -11.6 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2021-07-06 20:24:53,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.70 ms. Allocated memory is still 67.1 MB. Free memory was 42.7 MB in the beginning and 39.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:24:53,644 INFO L168 Benchmark]: Boogie Preprocessor took 27.46 ms. Allocated memory is still 67.1 MB. Free memory was 39.7 MB in the beginning and 37.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:24:53,644 INFO L168 Benchmark]: RCFGBuilder took 856.69 ms. Allocated memory is still 67.1 MB. Free memory was 37.6 MB in the beginning and 31.8 MB in the end (delta: 5.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-07-06 20:24:53,644 INFO L168 Benchmark]: BuchiAutomizer took 64135.43 ms. Allocated memory was 67.1 MB in the beginning and 111.1 MB in the end (delta: 44.0 MB). Free memory was 31.8 MB in the beginning and 60.1 MB in the end (delta: -28.3 MB). Peak memory consumption was 59.4 MB. Max. memory is 16.1 GB. [2021-07-06 20:24:53,645 INFO L168 Benchmark]: Witness Printer took 35.02 ms. Allocated memory is still 111.1 MB. Free memory was 60.1 MB in the beginning and 58.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:24:53,647 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.57 ms. Allocated memory is still 54.5 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 424.45 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.1 MB in the beginning and 42.7 MB in the end (delta: -11.6 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.70 ms. Allocated memory is still 67.1 MB. Free memory was 42.7 MB in the beginning and 39.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.46 ms. Allocated memory is still 67.1 MB. Free memory was 39.7 MB in the beginning and 37.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 856.69 ms. Allocated memory is still 67.1 MB. Free memory was 37.6 MB in the beginning and 31.8 MB in the end (delta: 5.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 64135.43 ms. Allocated memory was 67.1 MB in the beginning and 111.1 MB in the end (delta: 44.0 MB). Free memory was 31.8 MB in the beginning and 60.1 MB in the end (delta: -28.3 MB). Peak memory consumption was 59.4 MB. Max. memory is 16.1 GB. * Witness Printer took 35.02 ms. Allocated memory is still 111.1 MB. Free memory was 60.1 MB in the beginning and 58.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 234 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 64.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 63.6s. Construction of modules took 0.1s. 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 36.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 232 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 234 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 255 SDtfs, 799 SDslu, 1021 SDs, 0 SdLazy, 85 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 147.7ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 57]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=440} State at position 1 is {NULL=445, NULL=0, NULL=0, NULL=0, NULL=451, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e0c7733=65, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40f00f10=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bcada0e=0, NULL=440, NULL=457, NULL=466, NULL=464, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ddfd6a2=0, NULL=468, NULL=453, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fe940f7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16ee7375=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52fa0c3a=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@176bb39f=0, NULL=0, NULL=0, tmp___1=0, NULL=447, NULL=452, NULL=0, NULL=0, cleanupTimeShifts=4, tmp=0, NULL=454, tmp=0, NULL=449, NULL=462, tmp___0=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=458, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23bd76e4=0, retValue_acc=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=448, \result=1, head=0, pumpRunning=0, NULL=456, \result=0, NULL=446, NULL=0, NULL=460, NULL=0, tmp=1, NULL=0, retValue_acc=1, NULL=459, NULL=0, NULL=0, NULL=0, NULL=455, NULL=461, NULL=0, retValue_acc=1, NULL=443, tmp___2=65, NULL=0, splverifierCounter=0, NULL=0, \result=0, NULL=441, NULL=444, tmp=0, tmp___1=0, head=0, NULL=463, NULL=442, NULL=465, NULL=450, NULL=467} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L560] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L757] int waterLevel = 1; [L758] int methaneLevelCritical = 0; [L846] int cleanupTimeShifts = 4; [L919] int retValue_acc ; [L920] int tmp ; [L382] int retValue_acc ; [L385] retValue_acc = 1 [L386] return (retValue_acc); [L926] tmp = valid_product() [L928] COND TRUE \read(tmp) [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 Loop: [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L130] COND FALSE !(\read(pumpRunning)) [L137] COND TRUE \read(systemActive) [L159] int tmp ; [L162] COND FALSE !(\read(pumpRunning)) [L311] int tmp ; [L312] int tmp___0 ; [L313] int tmp___1 ; [L796] int retValue_acc ; [L799] retValue_acc = methaneLevelCritical [L800] return (retValue_acc); [L317] tmp = isMethaneLevelCritical() [L319] COND FALSE !(\read(tmp)) [L828] int retValue_acc ; [L831] retValue_acc = waterLevel [L832] return (retValue_acc); [L323] tmp___0 = getWaterLevel() [L325] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:24:53,697 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...