./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product58.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 debcf50bf3bb3961401c62ca4b7217ea7cc93038f750143121614e56b550164d --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 19:12:12,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 19:12:12,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 19:12:12,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 19:12:12,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 19:12:12,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 19:12:12,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 19:12:12,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 19:12:12,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 19:12:12,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 19:12:12,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 19:12:12,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 19:12:12,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 19:12:12,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 19:12:12,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 19:12:12,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 19:12:12,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 19:12:12,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 19:12:12,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 19:12:12,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 19:12:12,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 19:12:12,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 19:12:12,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 19:12:12,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 19:12:12,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 19:12:12,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 19:12:12,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 19:12:12,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 19:12:12,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 19:12:12,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 19:12:12,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 19:12:12,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 19:12:12,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 19:12:12,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 19:12:12,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 19:12:12,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 19:12:12,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 19:12:12,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 19:12:12,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 19:12:12,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 19:12:12,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 19:12:12,960 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-19 19:12:12,982 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 19:12:12,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 19:12:12,982 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 19:12:12,983 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 19:12:12,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 19:12:12,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 19:12:12,984 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 19:12:12,984 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 19:12:12,984 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 19:12:12,984 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 19:12:12,985 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 19:12:12,985 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 19:12:12,985 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 19:12:12,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 19:12:12,985 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 19:12:12,985 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 19:12:12,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 19:12:12,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 19:12:12,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 19:12:12,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 19:12:12,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 19:12:12,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 19:12:12,986 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 19:12:12,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 19:12:12,987 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 19:12:12,987 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 19:12:12,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 19:12:12,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 19:12:12,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 19:12:12,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 19:12:12,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 19:12:12,988 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 19:12:12,989 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 19:12:12,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> debcf50bf3bb3961401c62ca4b7217ea7cc93038f750143121614e56b550164d [2021-12-19 19:12:13,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 19:12:13,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 19:12:13,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 19:12:13,174 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 19:12:13,175 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 19:12:13,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2021-12-19 19:12:13,250 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c05b147f8/8ba6c6fc637c4c44a08a98b512f00749/FLAG2d365ad1c [2021-12-19 19:12:13,587 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 19:12:13,588 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2021-12-19 19:12:13,603 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c05b147f8/8ba6c6fc637c4c44a08a98b512f00749/FLAG2d365ad1c [2021-12-19 19:12:13,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c05b147f8/8ba6c6fc637c4c44a08a98b512f00749 [2021-12-19 19:12:13,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 19:12:13,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 19:12:13,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 19:12:13,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 19:12:13,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 19:12:13,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:12:13" (1/1) ... [2021-12-19 19:12:13,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d2678b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:13, skipping insertion in model container [2021-12-19 19:12:13,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:12:13" (1/1) ... [2021-12-19 19:12:13,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 19:12:14,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 19:12:14,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11718,11731] [2021-12-19 19:12:14,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:12:14,306 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 19:12:14,337 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11718,11731] [2021-12-19 19:12:14,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:12:14,368 INFO L208 MainTranslator]: Completed translation [2021-12-19 19:12:14,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:14 WrapperNode [2021-12-19 19:12:14,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 19:12:14,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 19:12:14,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 19:12:14,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 19:12:14,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:14" (1/1) ... [2021-12-19 19:12:14,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:14" (1/1) ... [2021-12-19 19:12:14,422 INFO L137 Inliner]: procedures = 57, calls = 157, calls flagged for inlining = 54, calls inlined = 96, statements flattened = 728 [2021-12-19 19:12:14,423 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 19:12:14,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 19:12:14,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 19:12:14,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 19:12:14,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:14" (1/1) ... [2021-12-19 19:12:14,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:14" (1/1) ... [2021-12-19 19:12:14,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:14" (1/1) ... [2021-12-19 19:12:14,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:14" (1/1) ... [2021-12-19 19:12:14,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:14" (1/1) ... [2021-12-19 19:12:14,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:14" (1/1) ... [2021-12-19 19:12:14,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:14" (1/1) ... [2021-12-19 19:12:14,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 19:12:14,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 19:12:14,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 19:12:14,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 19:12:14,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:14" (1/1) ... [2021-12-19 19:12:14,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:12:14,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:12:14,487 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) [2021-12-19 19:12:14,489 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 [2021-12-19 19:12:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 19:12:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 19:12:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 19:12:14,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 19:12:14,575 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 19:12:14,576 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 19:12:14,989 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 19:12:14,994 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 19:12:14,995 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-19 19:12:14,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:12:14 BoogieIcfgContainer [2021-12-19 19:12:14,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 19:12:14,997 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 19:12:14,997 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 19:12:14,999 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 19:12:15,000 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:12:15,000 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 07:12:13" (1/3) ... [2021-12-19 19:12:15,001 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@322d64fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:12:15, skipping insertion in model container [2021-12-19 19:12:15,001 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:12:15,001 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:14" (2/3) ... [2021-12-19 19:12:15,001 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@322d64fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:12:15, skipping insertion in model container [2021-12-19 19:12:15,002 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:12:15,002 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:12:14" (3/3) ... [2021-12-19 19:12:15,003 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2021-12-19 19:12:15,031 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 19:12:15,032 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 19:12:15,032 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 19:12:15,032 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 19:12:15,032 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 19:12:15,032 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 19:12:15,032 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 19:12:15,032 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 19:12:15,045 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 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) [2021-12-19 19:12:15,065 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2021-12-19 19:12:15,065 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:12:15,065 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:12:15,071 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:12:15,071 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:12:15,071 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 19:12:15,072 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 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) [2021-12-19 19:12:15,090 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2021-12-19 19:12:15,095 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:12:15,095 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:12:15,099 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:12:15,099 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:12:15,103 INFO L791 eck$LassoCheckResult]: Stem: 170#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 57#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret34#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 147#L688true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 85#L681true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 68#L696true main_#t~ret34#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret34#1;havoc main_#t~ret34#1; 183#L652true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 173#L625true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 149#L937-2true [2021-12-19 19:12:15,103 INFO L793 eck$LassoCheckResult]: Loop: 149#L937-2true assume !false; 165#L938true assume test_~splverifierCounter~0#1 < 4; 188#L939true test_~tmp~10#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 71#L947true assume !(0 != test_~tmp~10#1); 142#L947-2true test_~tmp___0~3#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 88#L957true assume !(0 != test_~tmp___0~3#1); 37#L957-2true test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 82#L967true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 161#L975true assume 0 != test_~tmp___1~0#1; 26#L975-2true assume { :begin_inline_timeShift } true; 60#L711true assume !(0 != ~pumpRunning~0); 94#L711-2true assume !(0 != ~systemActive~0); 186#L718-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret27#1, __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_~tmp~3#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~3#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 96#L536true __utac_acc__Specification4_spec__1_#t~ret27#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3#1 := __utac_acc__Specification4_spec__1_#t~ret27#1;havoc __utac_acc__Specification4_spec__1_#t~ret27#1; 122#L427true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); 92#L427-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 89#L728true assume { :end_inline_timeShift } true; 149#L937-2true [2021-12-19 19:12:15,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:12:15,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-19 19:12:15,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:12:15,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132763331] [2021-12-19 19:12:15,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:12:15,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:12:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:15,239 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:12:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:15,289 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:12:15,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:12:15,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1659451934, now seen corresponding path program 1 times [2021-12-19 19:12:15,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:12:15,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472280669] [2021-12-19 19:12:15,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:12:15,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:12:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:15,317 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:12:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:15,324 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:12:15,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:12:15,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1703833758, now seen corresponding path program 1 times [2021-12-19 19:12:15,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:12:15,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902631937] [2021-12-19 19:12:15,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:12:15,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:12:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:12:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:12:15,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:12:15,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902631937] [2021-12-19 19:12:15,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902631937] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:12:15,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:12:15,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-19 19:12:15,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305239522] [2021-12-19 19:12:15,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:12:15,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:12:15,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-19 19:12:15,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-19 19:12:15,593 INFO L87 Difference]: Start difference. First operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 19:12:15,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:12:15,715 INFO L93 Difference]: Finished difference Result 184 states and 239 transitions. [2021-12-19 19:12:15,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 19:12:15,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 239 transitions. [2021-12-19 19:12:15,724 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2021-12-19 19:12:15,728 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 174 states and 229 transitions. [2021-12-19 19:12:15,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 174 [2021-12-19 19:12:15,730 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 174 [2021-12-19 19:12:15,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 174 states and 229 transitions. [2021-12-19 19:12:15,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:12:15,734 INFO L681 BuchiCegarLoop]: Abstraction has 174 states and 229 transitions. [2021-12-19 19:12:15,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states and 229 transitions. [2021-12-19 19:12:15,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2021-12-19 19:12:15,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 174 states have (on average 1.3160919540229885) internal successors, (229), 173 states have internal predecessors, (229), 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) [2021-12-19 19:12:15,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 229 transitions. [2021-12-19 19:12:15,771 INFO L704 BuchiCegarLoop]: Abstraction has 174 states and 229 transitions. [2021-12-19 19:12:15,771 INFO L587 BuchiCegarLoop]: Abstraction has 174 states and 229 transitions. [2021-12-19 19:12:15,771 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 19:12:15,771 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states and 229 transitions. [2021-12-19 19:12:15,778 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2021-12-19 19:12:15,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:12:15,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:12:15,781 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:12:15,781 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] [2021-12-19 19:12:15,781 INFO L791 eck$LassoCheckResult]: Stem: 561#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 483#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret34#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 484#L688 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 520#L681 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 495#L696 main_#t~ret34#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret34#1;havoc main_#t~ret34#1; 496#L652 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 562#L625 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 525#L937-2 [2021-12-19 19:12:15,781 INFO L793 eck$LassoCheckResult]: Loop: 525#L937-2 assume !false; 556#L938 assume test_~splverifierCounter~0#1 < 4; 559#L939 test_~tmp~10#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 501#L947 assume !(0 != test_~tmp~10#1); 471#L947-2 test_~tmp___0~3#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 523#L957 assume !(0 != test_~tmp___0~3#1); 451#L957-2 test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 452#L967 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 517#L975 assume 0 != test_~tmp___1~0#1; 434#L975-2 assume { :begin_inline_timeShift } true; 435#L711 assume !(0 != ~pumpRunning~0); 486#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 493#L769 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 494#L743-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 505#L735-3 assume { :end_inline_processEnvironment__wrappee__base } true; 393#L743-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 394#L769-1 assume { :end_inline_processEnvironment } true; 508#L718-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret27#1, __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_~tmp~3#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~3#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 530#L536 __utac_acc__Specification4_spec__1_#t~ret27#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3#1 := __utac_acc__Specification4_spec__1_#t~ret27#1;havoc __utac_acc__Specification4_spec__1_#t~ret27#1; 531#L427 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); 528#L427-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 524#L728 assume { :end_inline_timeShift } true; 525#L937-2 [2021-12-19 19:12:15,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:12:15,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-19 19:12:15,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:12:15,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181540857] [2021-12-19 19:12:15,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:12:15,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:12:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:15,805 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:12:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:15,820 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:12:15,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:12:15,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1680076909, now seen corresponding path program 1 times [2021-12-19 19:12:15,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:12:15,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511921562] [2021-12-19 19:12:15,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:12:15,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:12:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:12:15,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:12:15,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:12:15,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511921562] [2021-12-19 19:12:15,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511921562] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:12:15,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:12:15,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 19:12:15,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713261541] [2021-12-19 19:12:15,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:12:15,848 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 19:12:15,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:12:15,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 19:12:15,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 19:12:15,848 INFO L87 Difference]: Start difference. First operand 174 states and 229 transitions. cyclomatic complexity: 57 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) [2021-12-19 19:12:15,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:12:15,914 INFO L93 Difference]: Finished difference Result 236 states and 298 transitions. [2021-12-19 19:12:15,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 19:12:15,915 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 236 states and 298 transitions. [2021-12-19 19:12:15,919 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2021-12-19 19:12:15,922 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 236 states to 236 states and 298 transitions. [2021-12-19 19:12:15,923 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 236 [2021-12-19 19:12:15,924 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 236 [2021-12-19 19:12:15,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 236 states and 298 transitions. [2021-12-19 19:12:15,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:12:15,928 INFO L681 BuchiCegarLoop]: Abstraction has 236 states and 298 transitions. [2021-12-19 19:12:15,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states and 298 transitions. [2021-12-19 19:12:15,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2021-12-19 19:12:15,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 236 states have (on average 1.2627118644067796) internal successors, (298), 235 states have internal predecessors, (298), 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) [2021-12-19 19:12:15,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 298 transitions. [2021-12-19 19:12:15,943 INFO L704 BuchiCegarLoop]: Abstraction has 236 states and 298 transitions. [2021-12-19 19:12:15,943 INFO L587 BuchiCegarLoop]: Abstraction has 236 states and 298 transitions. [2021-12-19 19:12:15,943 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-19 19:12:15,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 236 states and 298 transitions. [2021-12-19 19:12:15,945 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2021-12-19 19:12:15,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:12:15,946 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:12:15,947 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:12:15,947 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] [2021-12-19 19:12:15,948 INFO L791 eck$LassoCheckResult]: Stem: 984#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 898#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret34#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 899#L688 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 936#L681 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 911#L696 main_#t~ret34#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret34#1;havoc main_#t~ret34#1; 912#L652 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 985#L625 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 941#L937-2 [2021-12-19 19:12:15,948 INFO L793 eck$LassoCheckResult]: Loop: 941#L937-2 assume !false; 977#L938 assume test_~splverifierCounter~0#1 < 4; 982#L939 test_~tmp~10#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 917#L947 assume !(0 != test_~tmp~10#1); 888#L947-2 test_~tmp___0~3#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 939#L957 assume !(0 != test_~tmp___0~3#1); 867#L957-2 test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 868#L967 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 931#L975 assume 0 != test_~tmp___1~0#1; 849#L975-2 assume { :begin_inline_timeShift } true; 850#L711 assume !(0 != ~pumpRunning~0); 902#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 909#L769 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 910#L743-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 948#L544-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 976#L549-1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 962#L889-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 805#L889-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 806#L895-1 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 956#L747-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 958#L735-2 assume { :end_inline_processEnvironment__wrappee__base } true; 811#L743-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 812#L769-1 assume { :end_inline_processEnvironment } true; 923#L718-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret27#1, __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_~tmp~3#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~3#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 946#L536 __utac_acc__Specification4_spec__1_#t~ret27#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3#1 := __utac_acc__Specification4_spec__1_#t~ret27#1;havoc __utac_acc__Specification4_spec__1_#t~ret27#1; 947#L427 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); 944#L427-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 940#L728 assume { :end_inline_timeShift } true; 941#L937-2 [2021-12-19 19:12:15,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:12:15,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-19 19:12:15,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:12:15,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396056666] [2021-12-19 19:12:15,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:12:15,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:12:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:15,971 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:12:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:15,981 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:12:15,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:12:15,983 INFO L85 PathProgramCache]: Analyzing trace with hash -44819893, now seen corresponding path program 1 times [2021-12-19 19:12:15,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:12:15,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702090047] [2021-12-19 19:12:15,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:12:15,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:12:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:15,994 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:12:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:16,008 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:12:16,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:12:16,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1295801841, now seen corresponding path program 1 times [2021-12-19 19:12:16,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:12:16,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105973637] [2021-12-19 19:12:16,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:12:16,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:12:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:16,022 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:12:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:16,042 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:12:18,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 07:12:18 BoogieIcfgContainer [2021-12-19 19:12:18,477 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 19:12:18,478 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 19:12:18,478 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 19:12:18,478 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 19:12:18,479 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:12:14" (3/4) ... [2021-12-19 19:12:18,480 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-19 19:12:18,525 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-19 19:12:18,525 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 19:12:18,526 INFO L158 Benchmark]: Toolchain (without parser) took 4542.53ms. Allocated memory was 90.2MB in the beginning and 182.5MB in the end (delta: 92.3MB). Free memory was 57.3MB in the beginning and 82.7MB in the end (delta: -25.4MB). Peak memory consumption was 67.6MB. Max. memory is 16.1GB. [2021-12-19 19:12:18,526 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 90.2MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 19:12:18,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.50ms. Allocated memory is still 90.2MB. Free memory was 57.1MB in the beginning and 58.6MB in the end (delta: -1.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-19 19:12:18,527 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.53ms. Allocated memory is still 90.2MB. Free memory was 58.6MB in the beginning and 54.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-19 19:12:18,527 INFO L158 Benchmark]: Boogie Preprocessor took 25.33ms. Allocated memory is still 90.2MB. Free memory was 54.8MB in the beginning and 52.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:12:18,527 INFO L158 Benchmark]: RCFGBuilder took 546.78ms. Allocated memory was 90.2MB in the beginning and 123.7MB in the end (delta: 33.6MB). Free memory was 52.3MB in the beginning and 94.6MB in the end (delta: -42.4MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2021-12-19 19:12:18,528 INFO L158 Benchmark]: BuchiAutomizer took 3480.64ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 94.0MB in the beginning and 85.8MB in the end (delta: 8.2MB). Peak memory consumption was 87.6MB. Max. memory is 16.1GB. [2021-12-19 19:12:18,528 INFO L158 Benchmark]: Witness Printer took 47.62ms. Allocated memory is still 182.5MB. Free memory was 84.8MB in the beginning and 82.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:12:18,530 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 90.2MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.50ms. Allocated memory is still 90.2MB. Free memory was 57.1MB in the beginning and 58.6MB in the end (delta: -1.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.53ms. Allocated memory is still 90.2MB. Free memory was 58.6MB in the beginning and 54.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.33ms. Allocated memory is still 90.2MB. Free memory was 54.8MB in the beginning and 52.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 546.78ms. Allocated memory was 90.2MB in the beginning and 123.7MB in the end (delta: 33.6MB). Free memory was 52.3MB in the beginning and 94.6MB in the end (delta: -42.4MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 3480.64ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 94.0MB in the beginning and 85.8MB in the end (delta: 8.2MB). Peak memory consumption was 87.6MB. Max. memory is 16.1GB. * Witness Printer took 47.62ms. Allocated memory is still 182.5MB. Free memory was 84.8MB in the beginning and 82.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 236 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 236 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1088 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1088 mSDsluCounter, 554 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 106 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 448 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 937]: 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@29c1d241=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e4fea6b=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21de82c1=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70204da5=29, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bc30150=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fd2186=0, methaneLevelCritical=0, retValue_acc=1, tmp=0, retValue_acc=1, retValue_acc=0, tmp=1, tmp=1, \result=1, \result=1, retValue_acc=0, tmp___2=0, tmp=1, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, tmp___1=29, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24315942=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10165532=0, tmp___0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55a3aa99=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d4019a7=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 937]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L461] int waterLevel = 1; [L462] int methaneLevelCritical = 0; [L564] int cleanupTimeShifts = 4; [L704] int pumpRunning = 0; [L705] int systemActive = 1; [L643] int retValue_acc ; [L644] int tmp ; [L648] FCALL select_helpers() [L649] FCALL select_features() [L650] CALL, EXPR valid_product() [L692] int retValue_acc ; [L695] retValue_acc = 1 [L696] return (retValue_acc); [L650] RET, EXPR valid_product() [L650] tmp = valid_product() [L652] COND TRUE \read(tmp) [L654] FCALL setup() [L655] CALL runTest() [L634] CALL test() [L928] int splverifierCounter ; [L929] int tmp ; [L930] int tmp___0 ; [L931] int tmp___1 ; [L932] int tmp___2 ; [L935] splverifierCounter = 0 Loop: [L937] COND TRUE 1 [L939] COND TRUE splverifierCounter < 4 [L945] tmp = __VERIFIER_nondet_int() [L947] COND FALSE !(\read(tmp)) [L955] tmp___0 = __VERIFIER_nondet_int() [L957] COND FALSE !(\read(tmp___0)) [L965] tmp___2 = __VERIFIER_nondet_int() [L967] COND FALSE !(\read(tmp___2)) [L973] tmp___1 = __VERIFIER_nondet_int() [L975] COND TRUE \read(tmp___1) [L982] CALL timeShift() [L711] COND FALSE !(\read(pumpRunning)) [L718] COND TRUE \read(systemActive) [L720] CALL processEnvironment() [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L784] CALL processEnvironment__wrappee__highWaterSensor() [L740] int tmp ; [L743] COND TRUE ! pumpRunning [L745] CALL, EXPR isHighWaterLevel() [L881] int retValue_acc ; [L882] int tmp ; [L883] int tmp___0 ; [L887] CALL, EXPR isHighWaterSensorDry() [L541] int retValue_acc ; [L544] COND TRUE waterLevel < 2 [L545] retValue_acc = 1 [L546] return (retValue_acc); [L887] RET, EXPR isHighWaterSensorDry() [L887] tmp = isHighWaterSensorDry() [L889] COND TRUE \read(tmp) [L890] tmp___0 = 0 [L894] retValue_acc = tmp___0 [L895] return (retValue_acc); [L745] RET, EXPR isHighWaterLevel() [L745] tmp = isHighWaterLevel() [L747] COND FALSE !(\read(tmp)) [L753] FCALL processEnvironment__wrappee__base() [L784] RET processEnvironment__wrappee__highWaterSensor() [L720] RET processEnvironment() [L726] CALL __utac_acc__Specification4_spec__1() [L420] int tmp ; [L421] int tmp___0 ; [L425] CALL, EXPR getWaterLevel() [L532] int retValue_acc ; [L535] retValue_acc = waterLevel [L536] return (retValue_acc); [L425] RET, EXPR getWaterLevel() [L425] tmp = getWaterLevel() [L427] COND FALSE !(tmp == 0) [L726] RET __utac_acc__Specification4_spec__1() [L982] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-19 19:12:18,572 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)