./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product36.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_spec1_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 dae9a870dcbd894d53325794bcd1e36e0da0523a0c6f117be41bebebda51818a --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 09:59:12,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 09:59:12,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 09:59:12,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 09:59:12,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 09:59:12,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 09:59:12,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 09:59:12,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 09:59:12,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 09:59:12,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 09:59:12,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 09:59:12,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 09:59:12,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 09:59:12,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 09:59:12,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 09:59:12,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 09:59:12,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 09:59:12,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 09:59:12,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 09:59:12,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 09:59:12,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 09:59:12,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 09:59:12,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 09:59:12,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 09:59:12,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 09:59:12,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 09:59:13,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 09:59:13,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 09:59:13,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 09:59:13,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 09:59:13,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 09:59:13,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 09:59:13,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 09:59:13,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 09:59:13,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 09:59:13,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 09:59:13,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 09:59:13,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 09:59:13,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 09:59:13,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 09:59:13,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 09:59:13,015 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-16 09:59:13,050 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 09:59:13,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 09:59:13,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 09:59:13,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 09:59:13,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 09:59:13,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 09:59:13,053 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 09:59:13,053 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-16 09:59:13,053 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-16 09:59:13,053 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-16 09:59:13,054 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-16 09:59:13,054 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-16 09:59:13,054 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-16 09:59:13,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 09:59:13,055 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 09:59:13,055 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 09:59:13,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 09:59:13,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 09:59:13,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 09:59:13,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-16 09:59:13,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-16 09:59:13,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-16 09:59:13,056 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 09:59:13,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 09:59:13,057 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-16 09:59:13,057 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 09:59:13,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-16 09:59:13,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 09:59:13,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 09:59:13,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 09:59:13,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 09:59:13,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 09:59:13,060 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-16 09:59:13,060 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dae9a870dcbd894d53325794bcd1e36e0da0523a0c6f117be41bebebda51818a [2021-12-16 09:59:13,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 09:59:13,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 09:59:13,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 09:59:13,357 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 09:59:13,358 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 09:59:13,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2021-12-16 09:59:13,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2efb4553/9414100219df40858f7fefd2fded0cb6/FLAG95a8fe6a1 [2021-12-16 09:59:13,845 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 09:59:13,846 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2021-12-16 09:59:13,857 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2efb4553/9414100219df40858f7fefd2fded0cb6/FLAG95a8fe6a1 [2021-12-16 09:59:13,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2efb4553/9414100219df40858f7fefd2fded0cb6 [2021-12-16 09:59:13,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 09:59:13,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 09:59:13,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 09:59:13,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 09:59:13,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 09:59:13,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:59:13" (1/1) ... [2021-12-16 09:59:13,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12d2104d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:13, skipping insertion in model container [2021-12-16 09:59:13,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:59:13" (1/1) ... [2021-12-16 09:59:13,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 09:59:13,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 09:59:14,067 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_spec1_product36.cil.c[1605,1618] [2021-12-16 09:59:14,197 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:59:14,214 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 09:59:14,230 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_spec1_product36.cil.c[1605,1618] [2021-12-16 09:59:14,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:59:14,324 INFO L208 MainTranslator]: Completed translation [2021-12-16 09:59:14,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:14 WrapperNode [2021-12-16 09:59:14,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 09:59:14,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 09:59:14,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 09:59:14,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 09:59:14,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:14" (1/1) ... [2021-12-16 09:59:14,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:14" (1/1) ... [2021-12-16 09:59:14,409 INFO L137 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 49, calls inlined = 50, statements flattened = 399 [2021-12-16 09:59:14,412 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 09:59:14,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 09:59:14,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 09:59:14,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 09:59:14,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:14" (1/1) ... [2021-12-16 09:59:14,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:14" (1/1) ... [2021-12-16 09:59:14,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:14" (1/1) ... [2021-12-16 09:59:14,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:14" (1/1) ... [2021-12-16 09:59:14,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:14" (1/1) ... [2021-12-16 09:59:14,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:14" (1/1) ... [2021-12-16 09:59:14,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:14" (1/1) ... [2021-12-16 09:59:14,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 09:59:14,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 09:59:14,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 09:59:14,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 09:59:14,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:14" (1/1) ... [2021-12-16 09:59:14,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:59:14,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:59:14,496 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) [2021-12-16 09:59:14,498 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 [2021-12-16 09:59:14,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 09:59:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 09:59:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 09:59:14,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 09:59:14,584 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 09:59:14,585 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 09:59:14,814 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 09:59:14,820 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 09:59:14,824 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-16 09:59:14,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:59:14 BoogieIcfgContainer [2021-12-16 09:59:14,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 09:59:14,827 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-16 09:59:14,827 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-16 09:59:14,830 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-16 09:59:14,831 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:59:14,831 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.12 09:59:13" (1/3) ... [2021-12-16 09:59:14,841 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7984a350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:59:14, skipping insertion in model container [2021-12-16 09:59:14,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:59:14,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:14" (2/3) ... [2021-12-16 09:59:14,842 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7984a350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:59:14, skipping insertion in model container [2021-12-16 09:59:14,842 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:59:14,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:59:14" (3/3) ... [2021-12-16 09:59:14,843 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2021-12-16 09:59:14,924 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-16 09:59:14,925 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-16 09:59:14,925 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-16 09:59:14,925 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-16 09:59:14,925 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-16 09:59:14,925 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-16 09:59:14,925 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-16 09:59:14,926 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-16 09:59:14,948 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.3761467889908257) internal successors, (150), 109 states have internal predecessors, (150), 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) [2021-12-16 09:59:14,969 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-12-16 09:59:14,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:59:14,970 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:59:14,974 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:59:14,974 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:59:14,974 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-16 09:59:14,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.3761467889908257) internal successors, (150), 109 states have internal predecessors, (150), 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) [2021-12-16 09:59:14,981 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-12-16 09:59:14,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:59:14,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:59:14,982 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:59:14,982 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:59:14,986 INFO L791 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 80#L438true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 104#L431true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 88#L446true main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 69#L925true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 83#L902true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 32#L354-2true [2021-12-16 09:59:14,987 INFO L793 eck$LassoCheckResult]: Loop: 32#L354-2true assume !false; 30#L355true assume test_~splverifierCounter~0#1 < 4; 75#L356true test_~tmp~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 106#L364true assume !(0 != test_~tmp~2#1); 4#L364-2true test_~tmp___0~1#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 112#L374true assume !(0 != test_~tmp___0~1#1); 16#L374-2true test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 110#L384true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 45#L392true assume !(0 != test_~tmp___1~0#1); 13#L392-2true assume { :begin_inline_timeShift } true; 22#L78true assume !(0 != ~pumpRunning~0); 42#L78-2true assume !(0 != ~systemActive~0); 49#L85-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 77#L292true __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 100#L825true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 14#L825-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 74#L95true assume { :end_inline_timeShift } true; 32#L354-2true [2021-12-16 09:59:14,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:59:14,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-16 09:59:15,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:59:15,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736446195] [2021-12-16 09:59:15,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:59:15,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:59:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:15,142 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:59:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:15,204 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:59:15,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:59:15,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1528751567, now seen corresponding path program 1 times [2021-12-16 09:59:15,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:59:15,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625082764] [2021-12-16 09:59:15,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:59:15,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:59:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:15,232 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:59:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:15,241 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:59:15,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:59:15,245 INFO L85 PathProgramCache]: Analyzing trace with hash 597069963, now seen corresponding path program 1 times [2021-12-16 09:59:15,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:59:15,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306102571] [2021-12-16 09:59:15,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:59:15,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:59:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:59:15,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:59:15,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:59:15,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306102571] [2021-12-16 09:59:15,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306102571] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:59:15,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:59:15,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 09:59:15,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667240037] [2021-12-16 09:59:15,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:59:15,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:59:15,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 09:59:15,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-16 09:59:15,617 INFO L87 Difference]: Start difference. First operand has 110 states, 109 states have (on average 1.3761467889908257) internal successors, (150), 109 states have internal predecessors, (150), 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) [2021-12-16 09:59:15,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:59:15,771 INFO L93 Difference]: Finished difference Result 369 states and 476 transitions. [2021-12-16 09:59:15,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 09:59:15,776 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 369 states and 476 transitions. [2021-12-16 09:59:15,786 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 238 [2021-12-16 09:59:15,796 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 369 states to 329 states and 436 transitions. [2021-12-16 09:59:15,799 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 329 [2021-12-16 09:59:15,803 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 329 [2021-12-16 09:59:15,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 329 states and 436 transitions. [2021-12-16 09:59:15,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:59:15,809 INFO L681 BuchiCegarLoop]: Abstraction has 329 states and 436 transitions. [2021-12-16 09:59:15,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states and 436 transitions. [2021-12-16 09:59:15,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 149. [2021-12-16 09:59:15,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 149 states have (on average 1.3221476510067114) internal successors, (197), 148 states have internal predecessors, (197), 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) [2021-12-16 09:59:15,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 197 transitions. [2021-12-16 09:59:15,853 INFO L704 BuchiCegarLoop]: Abstraction has 149 states and 197 transitions. [2021-12-16 09:59:15,853 INFO L587 BuchiCegarLoop]: Abstraction has 149 states and 197 transitions. [2021-12-16 09:59:15,853 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-16 09:59:15,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 197 transitions. [2021-12-16 09:59:15,859 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 107 [2021-12-16 09:59:15,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:59:15,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:59:15,860 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:59:15,860 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:59:15,861 INFO L791 eck$LassoCheckResult]: Stem: 591#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 547#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 548#L438 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 587#L431 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 590#L446 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 578#L925 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 579#L902 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 545#L354-2 [2021-12-16 09:59:15,861 INFO L793 eck$LassoCheckResult]: Loop: 545#L354-2 assume !false; 540#L355 assume test_~splverifierCounter~0#1 < 4; 541#L356 test_~tmp~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 584#L364 assume !(0 != test_~tmp~2#1); 497#L364-2 test_~tmp___0~1#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 498#L374 assume !(0 != test_~tmp___0~1#1); 520#L374-2 test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 521#L384 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 594#L242 assume { :end_inline_startSystem } true; 515#L392-2 assume { :begin_inline_timeShift } true; 516#L78 assume !(0 != ~pumpRunning~0); 530#L78-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret4#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 559#L110 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 527#L102-1 assume { :end_inline_processEnvironment__wrappee__base } true; 519#L110-1 assume { :end_inline_processEnvironment } true; 526#L85-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 567#L292 __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 585#L825 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 511#L825-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 517#L95 assume { :end_inline_timeShift } true; 545#L354-2 [2021-12-16 09:59:15,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:59:15,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-16 09:59:15,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:59:15,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753230186] [2021-12-16 09:59:15,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:59:15,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:59:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:15,894 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:59:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:15,911 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:59:15,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:59:15,916 INFO L85 PathProgramCache]: Analyzing trace with hash -563664077, now seen corresponding path program 1 times [2021-12-16 09:59:15,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:59:15,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558844041] [2021-12-16 09:59:15,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:59:15,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:59:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:59:15,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:59:15,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:59:15,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558844041] [2021-12-16 09:59:15,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558844041] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:59:15,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:59:15,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 09:59:15,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79122395] [2021-12-16 09:59:15,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:59:15,942 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-16 09:59:15,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:59:15,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 09:59:15,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 09:59:15,942 INFO L87 Difference]: Start difference. First operand 149 states and 197 transitions. cyclomatic complexity: 51 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:59:15,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:59:15,980 INFO L93 Difference]: Finished difference Result 197 states and 249 transitions. [2021-12-16 09:59:15,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 09:59:15,981 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 197 states and 249 transitions. [2021-12-16 09:59:15,983 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 145 [2021-12-16 09:59:16,009 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 197 states to 197 states and 249 transitions. [2021-12-16 09:59:16,010 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 197 [2021-12-16 09:59:16,010 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 197 [2021-12-16 09:59:16,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 197 states and 249 transitions. [2021-12-16 09:59:16,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:59:16,012 INFO L681 BuchiCegarLoop]: Abstraction has 197 states and 249 transitions. [2021-12-16 09:59:16,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states and 249 transitions. [2021-12-16 09:59:16,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-12-16 09:59:16,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 197 states have (on average 1.263959390862944) internal successors, (249), 196 states have internal predecessors, (249), 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) [2021-12-16 09:59:16,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 249 transitions. [2021-12-16 09:59:16,029 INFO L704 BuchiCegarLoop]: Abstraction has 197 states and 249 transitions. [2021-12-16 09:59:16,029 INFO L587 BuchiCegarLoop]: Abstraction has 197 states and 249 transitions. [2021-12-16 09:59:16,030 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-16 09:59:16,030 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 197 states and 249 transitions. [2021-12-16 09:59:16,032 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 145 [2021-12-16 09:59:16,032 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:59:16,032 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:59:16,034 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:59:16,034 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:59:16,035 INFO L791 eck$LassoCheckResult]: Stem: 954#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 900#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 901#L438 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 946#L431 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 953#L446 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 936#L925 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 937#L902 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 948#L354-2 [2021-12-16 09:59:16,035 INFO L793 eck$LassoCheckResult]: Loop: 948#L354-2 assume !false; 1014#L355 assume test_~splverifierCounter~0#1 < 4; 942#L356 test_~tmp~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 943#L364 assume !(0 != test_~tmp~2#1); 849#L364-2 test_~tmp___0~1#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 850#L374 assume !(0 != test_~tmp___0~1#1); 871#L374-2 test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 872#L384 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 1037#L392 assume !(0 != test_~tmp___1~0#1); 960#L392-2 assume { :begin_inline_timeShift } true; 882#L78 assume !(0 != ~pumpRunning~0); 883#L78-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret4#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 912#L110 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret14#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~1#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#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~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 887#L332 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 888#L337 isHighWaterLevel_#t~ret14#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~1#1 := isHighWaterLevel_#t~ret14#1;havoc isHighWaterLevel_#t~ret14#1; 929#L212 assume 0 != isHighWaterLevel_~tmp~1#1;isHighWaterLevel_~tmp___0~0#1 := 0; 930#L212-2 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 902#L218 processEnvironment_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret4#1;havoc processEnvironment_#t~ret4#1; 903#L114 assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 915#L102 assume { :end_inline_processEnvironment__wrappee__base } true; 877#L110-1 assume { :end_inline_processEnvironment } true; 878#L85-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1020#L292 __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 1017#L825 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 1016#L825-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1015#L95 assume { :end_inline_timeShift } true; 948#L354-2 [2021-12-16 09:59:16,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:59:16,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-16 09:59:16,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:59:16,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370850808] [2021-12-16 09:59:16,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:59:16,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:59:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:16,053 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:59:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:16,064 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:59:16,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:59:16,067 INFO L85 PathProgramCache]: Analyzing trace with hash -45060083, now seen corresponding path program 1 times [2021-12-16 09:59:16,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:59:16,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686683056] [2021-12-16 09:59:16,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:59:16,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:59:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:16,079 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:59:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:16,091 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:59:16,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:59:16,092 INFO L85 PathProgramCache]: Analyzing trace with hash -171501359, now seen corresponding path program 1 times [2021-12-16 09:59:16,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:59:16,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108408483] [2021-12-16 09:59:16,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:59:16,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:59:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:16,106 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:59:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:16,119 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:59:19,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.12 09:59:19 BoogieIcfgContainer [2021-12-16 09:59:19,066 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-16 09:59:19,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 09:59:19,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 09:59:19,067 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 09:59:19,067 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:59:14" (3/4) ... [2021-12-16 09:59:19,069 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-16 09:59:19,107 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 09:59:19,107 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 09:59:19,108 INFO L158 Benchmark]: Toolchain (without parser) took 5230.71ms. Allocated memory was 92.3MB in the beginning and 144.7MB in the end (delta: 52.4MB). Free memory was 51.9MB in the beginning and 100.1MB in the end (delta: -48.2MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-12-16 09:59:19,108 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 92.3MB. Free memory was 69.7MB in the beginning and 69.7MB in the end (delta: 52.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:59:19,109 INFO L158 Benchmark]: CACSL2BoogieTranslator took 447.80ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 51.7MB in the beginning and 84.8MB in the end (delta: -33.1MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2021-12-16 09:59:19,109 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.08ms. Allocated memory is still 115.3MB. Free memory was 84.8MB in the beginning and 82.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 09:59:19,109 INFO L158 Benchmark]: Boogie Preprocessor took 54.74ms. Allocated memory is still 115.3MB. Free memory was 82.2MB in the beginning and 80.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:59:19,110 INFO L158 Benchmark]: RCFGBuilder took 358.82ms. Allocated memory is still 115.3MB. Free memory was 80.0MB in the beginning and 63.3MB in the end (delta: 16.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-16 09:59:19,110 INFO L158 Benchmark]: BuchiAutomizer took 4238.67ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 62.6MB in the beginning and 103.1MB in the end (delta: -40.5MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2021-12-16 09:59:19,110 INFO L158 Benchmark]: Witness Printer took 40.82ms. Allocated memory is still 144.7MB. Free memory was 103.1MB in the beginning and 100.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 09:59:19,112 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 92.3MB. Free memory was 69.7MB in the beginning and 69.7MB in the end (delta: 52.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 447.80ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 51.7MB in the beginning and 84.8MB in the end (delta: -33.1MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.08ms. Allocated memory is still 115.3MB. Free memory was 84.8MB in the beginning and 82.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.74ms. Allocated memory is still 115.3MB. Free memory was 82.2MB in the beginning and 80.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 358.82ms. Allocated memory is still 115.3MB. Free memory was 80.0MB in the beginning and 63.3MB in the end (delta: 16.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 4238.67ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 62.6MB in the beginning and 103.1MB in the end (delta: -40.5MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. * Witness Printer took 40.82ms. Allocated memory is still 144.7MB. Free memory was 103.1MB in the beginning and 100.1MB in the end (delta: 3.0MB). 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 197 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. 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, 180 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 197 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 726 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 726 mSDsluCounter, 1261 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 985 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 276 mSDtfsCounter, 74 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: 354]: 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, tmp___0=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77edae20=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, tmp___0=0, methaneLevelCritical=0, tmp=1, \result=0, retValue_acc=1, retValue_acc=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f0fbc9f=0, \result=1, \result=1, retValue_acc=0, tmp=1, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6665533b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70a8ce5a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b574ce7=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74e458b2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44fd80ba=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@287a9a29=0, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d9701f9=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 354]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L70] int pumpRunning = 0; [L71] int systemActive = 1; [L249] int waterLevel = 1; [L250] int methaneLevelCritical = 0; [L620] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L843] int cleanupTimeShifts = 4; [L916] int retValue_acc ; [L917] int tmp ; [L921] FCALL select_helpers() [L922] FCALL select_features() [L923] CALL, EXPR valid_product() [L442] int retValue_acc ; [L445] retValue_acc = 1 [L446] return (retValue_acc); [L923] RET, EXPR valid_product() [L923] tmp = valid_product() [L925] COND TRUE \read(tmp) [L927] FCALL setup() [L928] CALL runTest() [L910] CALL test() [L345] int splverifierCounter ; [L346] int tmp ; [L347] int tmp___0 ; [L348] int tmp___1 ; [L349] int tmp___2 ; [L352] splverifierCounter = 0 Loop: [L354] COND TRUE 1 [L356] COND TRUE splverifierCounter < 4 [L362] tmp = __VERIFIER_nondet_int() [L364] COND FALSE !(\read(tmp)) [L372] tmp___0 = __VERIFIER_nondet_int() [L374] COND FALSE !(\read(tmp___0)) [L382] tmp___2 = __VERIFIER_nondet_int() [L384] COND FALSE !(\read(tmp___2)) [L390] tmp___1 = __VERIFIER_nondet_int() [L392] COND FALSE !(\read(tmp___1)) [L401] CALL timeShift() [L78] COND FALSE !(\read(pumpRunning)) [L85] COND TRUE \read(systemActive) [L87] CALL processEnvironment() [L107] int tmp ; [L110] COND TRUE ! pumpRunning [L112] CALL, EXPR isHighWaterLevel() [L204] int retValue_acc ; [L205] int tmp ; [L206] int tmp___0 ; [L210] CALL, EXPR isHighWaterSensorDry() [L329] int retValue_acc ; [L332] COND TRUE waterLevel < 2 [L333] retValue_acc = 1 [L334] return (retValue_acc); [L210] RET, EXPR isHighWaterSensorDry() [L210] tmp = isHighWaterSensorDry() [L212] COND TRUE \read(tmp) [L213] tmp___0 = 0 [L217] retValue_acc = tmp___0 [L218] return (retValue_acc); [L112] RET, EXPR isHighWaterLevel() [L112] tmp = isHighWaterLevel() [L114] COND FALSE !(\read(tmp)) [L120] FCALL processEnvironment__wrappee__base() [L87] RET processEnvironment() [L93] CALL __utac_acc__Specification1_spec__1() [L818] int tmp ; [L819] int tmp___0 ; [L823] CALL, EXPR isMethaneLevelCritical() [L288] int retValue_acc ; [L291] retValue_acc = methaneLevelCritical [L292] return (retValue_acc); [L823] RET, EXPR isMethaneLevelCritical() [L823] tmp = isMethaneLevelCritical() [L825] COND FALSE !(\read(tmp)) [L93] RET __utac_acc__Specification1_spec__1() [L401] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-16 09:59:19,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)