./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 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_spec5_product36.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 06101f936f6436bac89af152aefce31c84cfc20ba80a5adfcf1af02faa2d4f3b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 20:26:31,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 20:26:31,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 20:26:31,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 20:26:31,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 20:26:31,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 20:26:31,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 20:26:31,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 20:26:31,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 20:26:32,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 20:26:32,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 20:26:32,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 20:26:32,003 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 20:26:32,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 20:26:32,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 20:26:32,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 20:26:32,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 20:26:32,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 20:26:32,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 20:26:32,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 20:26:32,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 20:26:32,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 20:26:32,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 20:26:32,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 20:26:32,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 20:26:32,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 20:26:32,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 20:26:32,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 20:26:32,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 20:26:32,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 20:26:32,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 20:26:32,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 20:26:32,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 20:26:32,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 20:26:32,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 20:26:32,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 20:26:32,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 20:26:32,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 20:26:32,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 20:26:32,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 20:26:32,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 20:26:32,042 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-22 20:26:32,066 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 20:26:32,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 20:26:32,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 20:26:32,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 20:26:32,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 20:26:32,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 20:26:32,068 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 20:26:32,069 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 20:26:32,069 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 20:26:32,069 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 20:26:32,069 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 20:26:32,070 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 20:26:32,070 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 20:26:32,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 20:26:32,070 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 20:26:32,070 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 20:26:32,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 20:26:32,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 20:26:32,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 20:26:32,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 20:26:32,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 20:26:32,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 20:26:32,071 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 20:26:32,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 20:26:32,072 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 20:26:32,072 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 20:26:32,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 20:26:32,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 20:26:32,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 20:26:32,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 20:26:32,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 20:26:32,073 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 20:26:32,074 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 20:26:32,074 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06101f936f6436bac89af152aefce31c84cfc20ba80a5adfcf1af02faa2d4f3b [2021-12-22 20:26:32,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 20:26:32,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 20:26:32,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 20:26:32,306 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 20:26:32,307 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 20:26:32,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2021-12-22 20:26:32,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c492bb16b/b95b70c9b63b48ca9da77e2e1db7d081/FLAG46c5cfd08 [2021-12-22 20:26:32,750 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 20:26:32,750 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2021-12-22 20:26:32,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c492bb16b/b95b70c9b63b48ca9da77e2e1db7d081/FLAG46c5cfd08 [2021-12-22 20:26:33,136 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c492bb16b/b95b70c9b63b48ca9da77e2e1db7d081 [2021-12-22 20:26:33,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 20:26:33,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 20:26:33,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 20:26:33,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 20:26:33,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 20:26:33,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:26:33" (1/1) ... [2021-12-22 20:26:33,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de5f876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:33, skipping insertion in model container [2021-12-22 20:26:33,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:26:33" (1/1) ... [2021-12-22 20:26:33,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 20:26:33,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 20:26:33,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[2141,2154] [2021-12-22 20:26:33,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:26:33,459 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 20:26:33,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[2141,2154] [2021-12-22 20:26:33,534 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:26:33,545 INFO L208 MainTranslator]: Completed translation [2021-12-22 20:26:33,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:33 WrapperNode [2021-12-22 20:26:33,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 20:26:33,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 20:26:33,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 20:26:33,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 20:26:33,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:33" (1/1) ... [2021-12-22 20:26:33,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:33" (1/1) ... [2021-12-22 20:26:33,594 INFO L137 Inliner]: procedures = 56, calls = 155, calls flagged for inlining = 52, calls inlined = 57, statements flattened = 439 [2021-12-22 20:26:33,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 20:26:33,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 20:26:33,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 20:26:33,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 20:26:33,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:33" (1/1) ... [2021-12-22 20:26:33,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:33" (1/1) ... [2021-12-22 20:26:33,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:33" (1/1) ... [2021-12-22 20:26:33,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:33" (1/1) ... [2021-12-22 20:26:33,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:33" (1/1) ... [2021-12-22 20:26:33,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:33" (1/1) ... [2021-12-22 20:26:33,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:33" (1/1) ... [2021-12-22 20:26:33,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 20:26:33,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 20:26:33,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 20:26:33,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 20:26:33,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:33" (1/1) ... [2021-12-22 20:26:33,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:33,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:33,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:33,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-22 20:26:33,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 20:26:33,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 20:26:33,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 20:26:33,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 20:26:33,740 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 20:26:33,741 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 20:26:33,981 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 20:26:33,986 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 20:26:33,986 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 20:26:33,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:26:33 BoogieIcfgContainer [2021-12-22 20:26:33,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 20:26:33,988 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 20:26:33,988 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 20:26:33,997 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 20:26:33,998 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:26:33,998 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 08:26:33" (1/3) ... [2021-12-22 20:26:33,999 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ede605b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:26:33, skipping insertion in model container [2021-12-22 20:26:33,999 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:26:33,999 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:33" (2/3) ... [2021-12-22 20:26:33,999 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ede605b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:26:33, skipping insertion in model container [2021-12-22 20:26:34,003 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:26:34,003 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:26:33" (3/3) ... [2021-12-22 20:26:34,007 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2021-12-22 20:26:34,064 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 20:26:34,065 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 20:26:34,065 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 20:26:34,065 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 20:26:34,065 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 20:26:34,065 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 20:26:34,066 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 20:26:34,066 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 20:26:34,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 120 states, 119 states have (on average 1.3697478991596639) internal successors, (163), 119 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:26:34,102 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2021-12-22 20:26:34,103 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:26:34,103 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:26:34,128 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:34,128 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:34,128 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 20:26:34,129 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 120 states, 119 states have (on average 1.3697478991596639) internal successors, (163), 119 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:26:34,133 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2021-12-22 20:26:34,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:26:34,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:26:34,134 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:34,134 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:34,137 INFO L791 eck$LassoCheckResult]: Stem: 110#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 41#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 57#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 117#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 23#L83true main_#t~ret43#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 6#L810true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 120#L785true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 85#L831true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 56#L667-2true [2021-12-22 20:26:34,138 INFO L793 eck$LassoCheckResult]: Loop: 56#L667-2true assume !false; 33#L668true assume test_~splverifierCounter~0#1 < 4; 102#L669true test_~tmp~5#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 9#L677true assume !(0 != test_~tmp~5#1); 58#L677-2true test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 49#L687true assume !(0 != test_~tmp___0~1#1); 70#L687-2true test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 35#L697true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 59#L284true assume { :end_inline_startSystem } true; 111#L705-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret44#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 74#L205true __utac_acc__Specification5_spec__2_#t~ret44#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44#1;havoc __utac_acc__Specification5_spec__2_#t~ret44#1; 77#L841true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 46#L120true assume !(0 != ~pumpRunning~0); 30#L120-2true assume !(0 != ~systemActive~0); 83#L127-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 42#L949true __utac_acc__Specification5_spec__3_#t~ret45#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret45#1;havoc __utac_acc__Specification5_spec__3_#t~ret45#1; 13#L852true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 101#L852-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 61#L137true assume { :end_inline_timeShift } true; 56#L667-2true [2021-12-22 20:26:34,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:34,143 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-22 20:26:34,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:34,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828736293] [2021-12-22 20:26:34,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:34,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:34,250 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:26:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:34,300 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:26:34,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:34,302 INFO L85 PathProgramCache]: Analyzing trace with hash -2025351381, now seen corresponding path program 1 times [2021-12-22 20:26:34,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:34,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314252347] [2021-12-22 20:26:34,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:34,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:26:34,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:26:34,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:26:34,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314252347] [2021-12-22 20:26:34,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314252347] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:26:34,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:26:34,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 20:26:34,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461843695] [2021-12-22 20:26:34,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:26:34,370 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-22 20:26:34,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:26:34,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 20:26:34,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 20:26:34,399 INFO L87 Difference]: Start difference. First operand has 120 states, 119 states have (on average 1.3697478991596639) internal successors, (163), 119 states have internal predecessors, (163), 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 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2021-12-22 20:26:34,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:26:34,469 INFO L93 Difference]: Finished difference Result 224 states and 292 transitions. [2021-12-22 20:26:34,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 20:26:34,474 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 224 states and 292 transitions. [2021-12-22 20:26:34,485 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 144 [2021-12-22 20:26:34,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 224 states to 204 states and 271 transitions. [2021-12-22 20:26:34,492 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 204 [2021-12-22 20:26:34,494 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 204 [2021-12-22 20:26:34,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 204 states and 271 transitions. [2021-12-22 20:26:34,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:26:34,496 INFO L681 BuchiCegarLoop]: Abstraction has 204 states and 271 transitions. [2021-12-22 20:26:34,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states and 271 transitions. [2021-12-22 20:26:34,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 201. [2021-12-22 20:26:34,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 201 states have (on average 1.328358208955224) internal successors, (267), 200 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:26:34,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 267 transitions. [2021-12-22 20:26:34,531 INFO L704 BuchiCegarLoop]: Abstraction has 201 states and 267 transitions. [2021-12-22 20:26:34,531 INFO L587 BuchiCegarLoop]: Abstraction has 201 states and 267 transitions. [2021-12-22 20:26:34,532 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 20:26:34,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 267 transitions. [2021-12-22 20:26:34,534 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 141 [2021-12-22 20:26:34,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:26:34,534 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:26:34,535 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:34,535 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:34,536 INFO L791 eck$LassoCheckResult]: Stem: 465#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 417#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 418#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 436#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 390#L83 main_#t~ret43#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 357#L810 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 358#L785 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 455#L831 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 456#L667-2 [2021-12-22 20:26:34,536 INFO L793 eck$LassoCheckResult]: Loop: 456#L667-2 assume !false; 517#L668 assume test_~splverifierCounter~0#1 < 4; 518#L669 test_~tmp~5#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 552#L677 assume !(0 != test_~tmp~5#1); 550#L677-2 test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 548#L687 assume !(0 != test_~tmp___0~1#1); 546#L687-2 test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 545#L697 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 544#L705 assume !(0 != test_~tmp___1~0#1); 437#L705-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret44#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 542#L205 __utac_acc__Specification5_spec__2_#t~ret44#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44#1;havoc __utac_acc__Specification5_spec__2_#t~ret44#1; 540#L841 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 537#L120 assume !(0 != ~pumpRunning~0); 534#L120-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 531#L152 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 530#L144-1 assume { :end_inline_processEnvironment__wrappee__base } true; 527#L152-1 assume { :end_inline_processEnvironment } true; 526#L127-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 525#L949 __utac_acc__Specification5_spec__3_#t~ret45#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret45#1;havoc __utac_acc__Specification5_spec__3_#t~ret45#1; 523#L852 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 520#L852-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 519#L137 assume { :end_inline_timeShift } true; 456#L667-2 [2021-12-22 20:26:34,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:34,537 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-22 20:26:34,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:34,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909245155] [2021-12-22 20:26:34,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:34,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:34,551 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:26:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:34,566 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:26:34,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:34,567 INFO L85 PathProgramCache]: Analyzing trace with hash 886706381, now seen corresponding path program 1 times [2021-12-22 20:26:34,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:34,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506315521] [2021-12-22 20:26:34,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:34,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:26:34,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:26:34,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:26:34,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506315521] [2021-12-22 20:26:34,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506315521] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:26:34,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:26:34,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 20:26:34,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508856509] [2021-12-22 20:26:34,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:26:34,584 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-22 20:26:34,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:26:34,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 20:26:34,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 20:26:34,586 INFO L87 Difference]: Start difference. First operand 201 states and 267 transitions. cyclomatic complexity: 69 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:26:34,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:26:34,642 INFO L93 Difference]: Finished difference Result 325 states and 420 transitions. [2021-12-22 20:26:34,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 20:26:34,643 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 325 states and 420 transitions. [2021-12-22 20:26:34,644 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 235 [2021-12-22 20:26:34,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 325 states to 325 states and 420 transitions. [2021-12-22 20:26:34,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 325 [2021-12-22 20:26:34,649 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 325 [2021-12-22 20:26:34,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 325 states and 420 transitions. [2021-12-22 20:26:34,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:26:34,653 INFO L681 BuchiCegarLoop]: Abstraction has 325 states and 420 transitions. [2021-12-22 20:26:34,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states and 420 transitions. [2021-12-22 20:26:34,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2021-12-22 20:26:34,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 325 states have (on average 1.2923076923076924) internal successors, (420), 324 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:26:34,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 420 transitions. [2021-12-22 20:26:34,661 INFO L704 BuchiCegarLoop]: Abstraction has 325 states and 420 transitions. [2021-12-22 20:26:34,661 INFO L587 BuchiCegarLoop]: Abstraction has 325 states and 420 transitions. [2021-12-22 20:26:34,661 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-22 20:26:34,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 325 states and 420 transitions. [2021-12-22 20:26:34,662 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 235 [2021-12-22 20:26:34,663 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:26:34,663 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:26:34,663 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:34,663 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:34,664 INFO L791 eck$LassoCheckResult]: Stem: 1006#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 950#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 951#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 969#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 921#L83 main_#t~ret43#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 889#L810 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 890#L785 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 992#L831 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 993#L667-2 [2021-12-22 20:26:34,664 INFO L793 eck$LassoCheckResult]: Loop: 993#L667-2 assume !false; 1129#L668 assume test_~splverifierCounter~0#1 < 4; 1128#L669 test_~tmp~5#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1126#L677 assume !(0 != test_~tmp~5#1); 1124#L677-2 test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 1122#L687 assume !(0 != test_~tmp___0~1#1); 1120#L687-2 test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 1119#L697 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 1012#L705 assume !(0 != test_~tmp___1~0#1); 970#L705-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret44#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 980#L205 __utac_acc__Specification5_spec__2_#t~ret44#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44#1;havoc __utac_acc__Specification5_spec__2_#t~ret44#1; 981#L841 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 956#L120 assume !(0 != ~pumpRunning~0); 957#L120-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 933#L152 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~1#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~1#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 934#L957 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 925#L962 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~1#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 926#L254 assume 0 != isHighWaterLevel_~tmp~1#1;isHighWaterLevel_~tmp___0~0#1 := 0; 927#L254-2 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 928#L260 processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1; 976#L156 assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1011#L144 assume { :end_inline_processEnvironment__wrappee__base } true; 1138#L152-1 assume { :end_inline_processEnvironment } true; 1137#L127-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 1136#L949 __utac_acc__Specification5_spec__3_#t~ret45#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret45#1;havoc __utac_acc__Specification5_spec__3_#t~ret45#1; 1134#L852 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 1131#L852-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1130#L137 assume { :end_inline_timeShift } true; 993#L667-2 [2021-12-22 20:26:34,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:34,664 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-22 20:26:34,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:34,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086792169] [2021-12-22 20:26:34,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:34,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:34,676 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:26:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:34,698 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:26:34,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:34,699 INFO L85 PathProgramCache]: Analyzing trace with hash -685421643, now seen corresponding path program 1 times [2021-12-22 20:26:34,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:34,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593685183] [2021-12-22 20:26:34,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:34,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:26:34,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:26:34,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:26:34,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593685183] [2021-12-22 20:26:34,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593685183] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:26:34,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:26:34,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 20:26:34,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251277900] [2021-12-22 20:26:34,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:26:34,763 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-22 20:26:34,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:26:34,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 20:26:34,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 20:26:34,764 INFO L87 Difference]: Start difference. First operand 325 states and 420 transitions. cyclomatic complexity: 98 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:26:34,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:26:34,932 INFO L93 Difference]: Finished difference Result 1283 states and 1643 transitions. [2021-12-22 20:26:34,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 20:26:34,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1283 states and 1643 transitions. [2021-12-22 20:26:34,943 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 918 [2021-12-22 20:26:34,947 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1283 states to 1283 states and 1643 transitions. [2021-12-22 20:26:34,947 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1283 [2021-12-22 20:26:34,948 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1283 [2021-12-22 20:26:34,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1283 states and 1643 transitions. [2021-12-22 20:26:34,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:26:34,950 INFO L681 BuchiCegarLoop]: Abstraction has 1283 states and 1643 transitions. [2021-12-22 20:26:34,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states and 1643 transitions. [2021-12-22 20:26:34,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 636. [2021-12-22 20:26:34,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 636 states have (on average 1.270440251572327) internal successors, (808), 635 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:26:34,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 808 transitions. [2021-12-22 20:26:34,967 INFO L704 BuchiCegarLoop]: Abstraction has 636 states and 808 transitions. [2021-12-22 20:26:34,967 INFO L587 BuchiCegarLoop]: Abstraction has 636 states and 808 transitions. [2021-12-22 20:26:34,967 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-22 20:26:34,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 636 states and 808 transitions. [2021-12-22 20:26:34,969 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 466 [2021-12-22 20:26:34,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:26:34,969 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:26:34,970 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:34,970 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:34,970 INFO L791 eck$LassoCheckResult]: Stem: 2647#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2579#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 2580#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2601#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2549#L83 main_#t~ret43#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 2517#L810 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 2518#L785 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2629#L831 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2630#L667-2 [2021-12-22 20:26:34,970 INFO L793 eck$LassoCheckResult]: Loop: 2630#L667-2 assume !false; 2830#L668 assume test_~splverifierCounter~0#1 < 4; 2829#L669 test_~tmp~5#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 2827#L677 assume !(0 != test_~tmp~5#1); 2824#L677-2 test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 2821#L687 assume !(0 != test_~tmp___0~1#1); 2817#L687-2 test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 2814#L697 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 2811#L705 assume !(0 != test_~tmp___1~0#1); 2812#L705-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret44#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 2864#L205 __utac_acc__Specification5_spec__2_#t~ret44#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44#1;havoc __utac_acc__Specification5_spec__2_#t~ret44#1; 2863#L841 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2859#L120 assume !(0 != ~pumpRunning~0); 2858#L120-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 2857#L152 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~1#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~1#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 2819#L957 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 2606#L962 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~1#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 2855#L254 assume 0 != isHighWaterLevel_~tmp~1#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2853#L254-2 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 2851#L260 processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1; 2848#L156 assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2849#L144 assume { :end_inline_processEnvironment__wrappee__base } true; 2726#L152-1 assume { :end_inline_processEnvironment } true; 2724#L127-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 2725#L949 __utac_acc__Specification5_spec__3_#t~ret45#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret45#1;havoc __utac_acc__Specification5_spec__3_#t~ret45#1; 2533#L852 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 2534#L205-1 __utac_acc__Specification5_spec__3_#t~ret46#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret46#1;havoc __utac_acc__Specification5_spec__3_#t~ret46#1; 2836#L856 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 2834#L852-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2833#L137 assume { :end_inline_timeShift } true; 2630#L667-2 [2021-12-22 20:26:34,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:34,971 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2021-12-22 20:26:34,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:34,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541255588] [2021-12-22 20:26:34,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:34,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:34,980 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:26:34,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:34,994 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:26:35,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:35,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1579300720, now seen corresponding path program 1 times [2021-12-22 20:26:35,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:35,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070072359] [2021-12-22 20:26:35,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:35,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:35,010 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:26:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:35,032 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:26:35,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:35,032 INFO L85 PathProgramCache]: Analyzing trace with hash 749809081, now seen corresponding path program 1 times [2021-12-22 20:26:35,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:35,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262670842] [2021-12-22 20:26:35,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:35,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:35,052 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:26:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:35,063 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:26:37,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.12 08:26:37 BoogieIcfgContainer [2021-12-22 20:26:37,935 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-22 20:26:37,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 20:26:37,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 20:26:37,937 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 20:26:37,937 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:26:33" (3/4) ... [2021-12-22 20:26:37,939 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-22 20:26:37,977 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 20:26:37,978 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 20:26:37,978 INFO L158 Benchmark]: Toolchain (without parser) took 4839.09ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 55.9MB in the beginning and 64.7MB in the end (delta: -8.8MB). Peak memory consumption was 42.0MB. Max. memory is 16.1GB. [2021-12-22 20:26:37,978 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory was 72.8MB in the beginning and 72.7MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:26:37,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.45ms. Allocated memory is still 92.3MB. Free memory was 55.8MB in the beginning and 60.9MB in the end (delta: -5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 20:26:37,979 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.88ms. Allocated memory is still 92.3MB. Free memory was 60.9MB in the beginning and 58.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:26:37,980 INFO L158 Benchmark]: Boogie Preprocessor took 21.43ms. Allocated memory is still 92.3MB. Free memory was 58.0MB in the beginning and 56.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:26:37,980 INFO L158 Benchmark]: RCFGBuilder took 370.16ms. Allocated memory is still 92.3MB. Free memory was 55.9MB in the beginning and 37.9MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-22 20:26:37,980 INFO L158 Benchmark]: BuchiAutomizer took 3946.78ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 37.9MB in the beginning and 67.9MB in the end (delta: -30.0MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. [2021-12-22 20:26:37,981 INFO L158 Benchmark]: Witness Printer took 40.76ms. Allocated memory is still 142.6MB. Free memory was 67.9MB in the beginning and 64.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:26:37,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory was 72.8MB in the beginning and 72.7MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.45ms. Allocated memory is still 92.3MB. Free memory was 55.8MB in the beginning and 60.9MB in the end (delta: -5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.88ms. Allocated memory is still 92.3MB. Free memory was 60.9MB in the beginning and 58.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.43ms. Allocated memory is still 92.3MB. Free memory was 58.0MB in the beginning and 56.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 370.16ms. Allocated memory is still 92.3MB. Free memory was 55.9MB in the beginning and 37.9MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3946.78ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 37.9MB in the beginning and 67.9MB in the end (delta: -30.0MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. * Witness Printer took 40.76ms. Allocated memory is still 142.6MB. Free memory was 67.9MB in the beginning and 64.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 636 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 650 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 636 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 856 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 856 mSDsluCounter, 1422 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 891 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 136 IncrementalHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 531 mSDtfsCounter, 136 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 667]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71db6264=0, tmp___0=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, retValue_acc=0, methaneLevelCritical=0, retValue_acc=1, tmp=1, retValue_acc=1, retValue_acc=1, \result=1, retValue_acc=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cd194f2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e4fe759=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@729e377b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61572b3c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e8d2f0c=0, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6499c9e8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e989d38=0, \result=0, tmp=1, cleanupTimeShifts=4, switchedOnBeforeTS=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33cd1bbf=0, \result=0, tmp=0, tmp___0=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cb787b6=0, \result=1, retValue_acc=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, \result=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 667]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L108] int pumpRunning = 0; [L109] int systemActive = 1; [L457] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L726] int cleanupTimeShifts = 4; [L825] int switchedOnBeforeTS ; [L874] int waterLevel = 1; [L875] int methaneLevelCritical = 0; [L801] int retValue_acc ; [L802] int tmp ; [L806] FCALL select_helpers() [L807] FCALL select_features() [L808] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L808] RET, EXPR valid_product() [L808] tmp = valid_product() [L810] COND TRUE \read(tmp) [L812] FCALL setup() [L813] CALL runTest() [L794] CALL __utac_acc__Specification5_spec__1() [L830] switchedOnBeforeTS = 0 [L794] RET __utac_acc__Specification5_spec__1() [L795] CALL test() [L658] int splverifierCounter ; [L659] int tmp ; [L660] int tmp___0 ; [L661] int tmp___1 ; [L662] int tmp___2 ; [L665] splverifierCounter = 0 Loop: [L667] COND TRUE 1 [L669] COND TRUE splverifierCounter < 4 [L675] tmp = __VERIFIER_nondet_int() [L677] COND FALSE !(\read(tmp)) [L685] tmp___0 = __VERIFIER_nondet_int() [L687] COND FALSE !(\read(tmp___0)) [L695] tmp___2 = __VERIFIER_nondet_int() [L697] COND FALSE !(\read(tmp___2)) [L703] tmp___1 = __VERIFIER_nondet_int() [L705] COND FALSE !(\read(tmp___1)) [L714] CALL timeShift() [L118] CALL __utac_acc__Specification5_spec__2() [L839] CALL, EXPR isPumpRunning() [L201] int retValue_acc ; [L204] retValue_acc = pumpRunning [L205] return (retValue_acc); [L839] RET, EXPR isPumpRunning() [L839] switchedOnBeforeTS = isPumpRunning() [L118] RET __utac_acc__Specification5_spec__2() [L120] COND FALSE !(\read(pumpRunning)) [L127] COND TRUE \read(systemActive) [L129] CALL processEnvironment() [L149] int tmp ; [L152] COND TRUE ! pumpRunning [L154] CALL, EXPR isHighWaterLevel() [L246] int retValue_acc ; [L247] int tmp ; [L248] int tmp___0 ; [L252] CALL, EXPR isHighWaterSensorDry() [L954] int retValue_acc ; [L957] COND TRUE waterLevel < 2 [L958] retValue_acc = 1 [L959] return (retValue_acc); [L252] RET, EXPR isHighWaterSensorDry() [L252] tmp = isHighWaterSensorDry() [L254] COND TRUE \read(tmp) [L255] tmp___0 = 0 [L259] retValue_acc = tmp___0 [L260] return (retValue_acc); [L154] RET, EXPR isHighWaterLevel() [L154] tmp = isHighWaterLevel() [L156] COND FALSE !(\read(tmp)) [L162] FCALL processEnvironment__wrappee__base() [L129] RET processEnvironment() [L135] CALL __utac_acc__Specification5_spec__3() [L845] int tmp ; [L846] int tmp___0 ; [L850] CALL, EXPR getWaterLevel() [L945] int retValue_acc ; [L948] retValue_acc = waterLevel [L949] return (retValue_acc); [L850] RET, EXPR getWaterLevel() [L850] tmp = getWaterLevel() [L852] COND TRUE tmp != 2 [L854] CALL, EXPR isPumpRunning() [L201] int retValue_acc ; [L204] retValue_acc = pumpRunning [L205] return (retValue_acc); [L854] RET, EXPR isPumpRunning() [L854] tmp___0 = isPumpRunning() [L856] COND FALSE !(\read(tmp___0)) [L135] RET __utac_acc__Specification5_spec__3() [L714] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-22 20:26:38,016 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)