./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product08.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 f2656148601f1263a8e24b75d9059e08eab7a1ff3676ef4340768cc6aab19236 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 20:24:51,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 20:24:51,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 20:24:51,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 20:24:51,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 20:24:51,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 20:24:51,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 20:24:51,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 20:24:51,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 20:24:51,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 20:24:51,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 20:24:51,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 20:24:51,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 20:24:51,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 20:24:51,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 20:24:51,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 20:24:51,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 20:24:51,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 20:24:51,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 20:24:51,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 20:24:51,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 20:24:51,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 20:24:51,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 20:24:51,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 20:24:51,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 20:24:51,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 20:24:51,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 20:24:51,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 20:24:51,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 20:24:51,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 20:24:51,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 20:24:51,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 20:24:51,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 20:24:51,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 20:24:51,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 20:24:51,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 20:24:51,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 20:24:51,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 20:24:51,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 20:24:51,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 20:24:51,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 20:24:51,956 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-22 20:24:51,984 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 20:24:51,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 20:24:51,987 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 20:24:51,987 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 20:24:51,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 20:24:51,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 20:24:51,989 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 20:24:51,989 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 20:24:51,989 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 20:24:51,990 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 20:24:51,990 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 20:24:51,991 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 20:24:51,991 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 20:24:51,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 20:24:51,991 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 20:24:51,991 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 20:24:51,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 20:24:51,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 20:24:51,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 20:24:51,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 20:24:51,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 20:24:51,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 20:24:51,993 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 20:24:51,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 20:24:51,993 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 20:24:51,993 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 20:24:51,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 20:24:51,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 20:24:51,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 20:24:51,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 20:24:51,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 20:24:51,995 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 20:24:51,995 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 20:24:51,996 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2656148601f1263a8e24b75d9059e08eab7a1ff3676ef4340768cc6aab19236 [2021-12-22 20:24:52,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 20:24:52,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 20:24:52,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 20:24:52,230 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 20:24:52,231 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 20:24:52,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2021-12-22 20:24:52,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e787c3af6/3a5f5128ea2e456f8e321415671bb6b0/FLAGd6da03e2f [2021-12-22 20:24:52,702 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 20:24:52,703 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2021-12-22 20:24:52,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e787c3af6/3a5f5128ea2e456f8e321415671bb6b0/FLAGd6da03e2f [2021-12-22 20:24:53,098 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e787c3af6/3a5f5128ea2e456f8e321415671bb6b0 [2021-12-22 20:24:53,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 20:24:53,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 20:24:53,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 20:24:53,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 20:24:53,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 20:24:53,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:24:53" (1/1) ... [2021-12-22 20:24:53,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65e4f450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:53, skipping insertion in model container [2021-12-22 20:24:53,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:24:53" (1/1) ... [2021-12-22 20:24:53,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 20:24:53,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 20:24:53,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c[13019,13032] [2021-12-22 20:24:53,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:24:53,440 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 20:24:53,509 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c[13019,13032] [2021-12-22 20:24:53,537 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:24:53,561 INFO L208 MainTranslator]: Completed translation [2021-12-22 20:24:53,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:53 WrapperNode [2021-12-22 20:24:53,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 20:24:53,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 20:24:53,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 20:24:53,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 20:24:53,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:53" (1/1) ... [2021-12-22 20:24:53,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:53" (1/1) ... [2021-12-22 20:24:53,634 INFO L137 Inliner]: procedures = 52, calls = 152, calls flagged for inlining = 49, calls inlined = 53, statements flattened = 402 [2021-12-22 20:24:53,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 20:24:53,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 20:24:53,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 20:24:53,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 20:24:53,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:53" (1/1) ... [2021-12-22 20:24:53,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:53" (1/1) ... [2021-12-22 20:24:53,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:53" (1/1) ... [2021-12-22 20:24:53,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:53" (1/1) ... [2021-12-22 20:24:53,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:53" (1/1) ... [2021-12-22 20:24:53,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:53" (1/1) ... [2021-12-22 20:24:53,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:53" (1/1) ... [2021-12-22 20:24:53,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 20:24:53,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 20:24:53,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 20:24:53,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 20:24:53,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:53" (1/1) ... [2021-12-22 20:24:53,713 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:24:53,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:24:53,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:24:53,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-22 20:24:53,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 20:24:53,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 20:24:53,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 20:24:53,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 20:24:53,835 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 20:24:53,836 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 20:24:54,150 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 20:24:54,157 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 20:24:54,158 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 20:24:54,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:54 BoogieIcfgContainer [2021-12-22 20:24:54,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 20:24:54,161 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 20:24:54,161 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 20:24:54,164 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 20:24:54,165 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:24:54,165 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 08:24:53" (1/3) ... [2021-12-22 20:24:54,166 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5396fc26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:24:54, skipping insertion in model container [2021-12-22 20:24:54,166 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:24:54,166 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:53" (2/3) ... [2021-12-22 20:24:54,167 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5396fc26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:24:54, skipping insertion in model container [2021-12-22 20:24:54,167 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:24:54,167 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:54" (3/3) ... [2021-12-22 20:24:54,168 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2021-12-22 20:24:54,211 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 20:24:54,211 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 20:24:54,211 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 20:24:54,211 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 20:24:54,212 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 20:24:54,212 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 20:24:54,212 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 20:24:54,212 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 20:24:54,226 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:24:54,245 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-12-22 20:24:54,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:24:54,246 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:24:54,252 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:54,252 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:54,252 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 20:24:54,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:24:54,258 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-12-22 20:24:54,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:24:54,259 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:24:54,260 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:54,260 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:54,264 INFO L791 eck$LassoCheckResult]: Stem: 95#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;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 31#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 9#L804true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 71#L797true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 65#L812true main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 33#L899true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 76#L876true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 27#L561-2true [2021-12-22 20:24:54,265 INFO L793 eck$LassoCheckResult]: Loop: 27#L561-2true assume !false; 68#L562true assume test_~splverifierCounter~0#1 < 4; 53#L563true test_~tmp~4#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 97#L571true assume !(0 != test_~tmp~4#1); 25#L571-2true test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 109#L581true assume !(0 != test_~tmp___0~1#1); 93#L581-2true test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 92#L591true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 51#L599true assume !(0 != test_~tmp___1~1#1); 64#L599-2true assume { :begin_inline_timeShift } true; 69#L630true assume !(0 != ~pumpRunning~0); 42#L630-2true assume !(0 != ~systemActive~0); 55#L637-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 81#L501-1true __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 6#L63true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 102#L69-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 99#L647true assume { :end_inline_timeShift } true; 27#L561-2true [2021-12-22 20:24:54,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:54,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-22 20:24:54,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:54,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264321376] [2021-12-22 20:24:54,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:54,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:54,416 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:54,483 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:54,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:54,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1173736865, now seen corresponding path program 1 times [2021-12-22 20:24:54,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:54,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333166758] [2021-12-22 20:24:54,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:54,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:54,516 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:54,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:54,525 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:54,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:54,528 INFO L85 PathProgramCache]: Analyzing trace with hash 242055261, now seen corresponding path program 1 times [2021-12-22 20:24:54,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:54,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195651921] [2021-12-22 20:24:54,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:54,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:24:54,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:24:54,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:24:54,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195651921] [2021-12-22 20:24:54,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195651921] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:24:54,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:24:54,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 20:24:54,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97136641] [2021-12-22 20:24:54,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:24:54,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:24:54,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 20:24:54,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 20:24:54,873 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 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) [2021-12-22 20:24:54,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:24:54,979 INFO L93 Difference]: Finished difference Result 366 states and 467 transitions. [2021-12-22 20:24:54,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 20:24:54,984 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 366 states and 467 transitions. [2021-12-22 20:24:54,993 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 236 [2021-12-22 20:24:54,999 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 366 states to 326 states and 427 transitions. [2021-12-22 20:24:55,000 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 326 [2021-12-22 20:24:55,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 326 [2021-12-22 20:24:55,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 326 states and 427 transitions. [2021-12-22 20:24:55,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:24:55,004 INFO L681 BuchiCegarLoop]: Abstraction has 326 states and 427 transitions. [2021-12-22 20:24:55,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states and 427 transitions. [2021-12-22 20:24:55,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 152. [2021-12-22 20:24:55,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 152 states have (on average 1.3157894736842106) internal successors, (200), 151 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:24:55,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 200 transitions. [2021-12-22 20:24:55,054 INFO L704 BuchiCegarLoop]: Abstraction has 152 states and 200 transitions. [2021-12-22 20:24:55,054 INFO L587 BuchiCegarLoop]: Abstraction has 152 states and 200 transitions. [2021-12-22 20:24:55,054 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 20:24:55,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 200 transitions. [2021-12-22 20:24:55,061 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 109 [2021-12-22 20:24:55,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:24:55,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:24:55,064 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:55,064 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] [2021-12-22 20:24:55,065 INFO L791 eck$LassoCheckResult]: Stem: 578#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;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 564#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 503#L804 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 504#L797 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 507#L812 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 508#L899 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 541#L876 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 542#L561-2 [2021-12-22 20:24:55,065 INFO L793 eck$LassoCheckResult]: Loop: 542#L561-2 assume !false; 519#L562 assume test_~splverifierCounter~0#1 < 4; 520#L563 test_~tmp~4#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 580#L571 assume !(0 != test_~tmp~4#1); 553#L571-2 test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 554#L581 assume !(0 != test_~tmp___0~1#1); 563#L581-2 test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 571#L591 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 528#L775 assume { :end_inline_startSystem } true; 505#L599-2 assume { :begin_inline_timeShift } true; 506#L630 assume !(0 != ~pumpRunning~0); 522#L630-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 575#L662 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 567#L654-1 assume { :end_inline_processEnvironment__wrappee__base } true; 524#L662-1 assume { :end_inline_processEnvironment } true; 525#L637-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 552#L501-1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 499#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 500#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 582#L647 assume { :end_inline_timeShift } true; 542#L561-2 [2021-12-22 20:24:55,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:55,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-22 20:24:55,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:55,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4159460] [2021-12-22 20:24:55,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:55,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:55,109 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:55,122 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:55,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:55,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1877291397, now seen corresponding path program 1 times [2021-12-22 20:24:55,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:55,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169854029] [2021-12-22 20:24:55,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:55,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:55,129 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:55,133 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:55,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:55,136 INFO L85 PathProgramCache]: Analyzing trace with hash 229293385, now seen corresponding path program 1 times [2021-12-22 20:24:55,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:55,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788551622] [2021-12-22 20:24:55,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:55,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:24:55,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:24:55,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:24:55,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788551622] [2021-12-22 20:24:55,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788551622] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:24:55,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:24:55,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 20:24:55,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524749258] [2021-12-22 20:24:55,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:24:55,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:24:55,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 20:24:55,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 20:24:55,334 INFO L87 Difference]: Start difference. First operand 152 states and 200 transitions. cyclomatic complexity: 51 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:24:55,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:24:55,462 INFO L93 Difference]: Finished difference Result 520 states and 686 transitions. [2021-12-22 20:24:55,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 20:24:55,463 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 520 states and 686 transitions. [2021-12-22 20:24:55,470 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 392 [2021-12-22 20:24:55,475 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 520 states to 520 states and 686 transitions. [2021-12-22 20:24:55,475 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 520 [2021-12-22 20:24:55,476 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 520 [2021-12-22 20:24:55,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 520 states and 686 transitions. [2021-12-22 20:24:55,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:24:55,478 INFO L681 BuchiCegarLoop]: Abstraction has 520 states and 686 transitions. [2021-12-22 20:24:55,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states and 686 transitions. [2021-12-22 20:24:55,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 297. [2021-12-22 20:24:55,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 297 states have (on average 1.2962962962962963) internal successors, (385), 296 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:24:55,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 385 transitions. [2021-12-22 20:24:55,489 INFO L704 BuchiCegarLoop]: Abstraction has 297 states and 385 transitions. [2021-12-22 20:24:55,489 INFO L587 BuchiCegarLoop]: Abstraction has 297 states and 385 transitions. [2021-12-22 20:24:55,489 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-22 20:24:55,489 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 297 states and 385 transitions. [2021-12-22 20:24:55,491 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 218 [2021-12-22 20:24:55,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:24:55,491 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:24:55,491 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:55,491 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:55,492 INFO L791 eck$LassoCheckResult]: Stem: 1286#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;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1266#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 1192#L804 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1193#L797 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1199#L812 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 1200#L899 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 1236#L876 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1237#L561-2 [2021-12-22 20:24:55,492 INFO L793 eck$LassoCheckResult]: Loop: 1237#L561-2 assume !false; 1210#L562 assume test_~splverifierCounter~0#1 < 4; 1211#L563 test_~tmp~4#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 1291#L571 assume !(0 != test_~tmp~4#1); 1255#L571-2 test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 1256#L581 assume !(0 != test_~tmp___0~1#1); 1282#L581-2 test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1275#L591 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1224#L775 assume { :end_inline_startSystem } true; 1194#L599-2 assume { :begin_inline_timeShift } true; 1195#L630 assume !(0 != ~pumpRunning~0); 1208#L630-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1279#L662 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1267#L654-1 assume { :end_inline_processEnvironment__wrappee__base } true; 1213#L662-1 assume { :end_inline_processEnvironment } true; 1214#L637-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1314#L501-1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 1315#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~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; 1295#L533 __utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 1296#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 1300#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1297#L647 assume { :end_inline_timeShift } true; 1237#L561-2 [2021-12-22 20:24:55,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:55,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-22 20:24:55,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:55,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545502916] [2021-12-22 20:24:55,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:55,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:55,501 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:55,510 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:55,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:55,511 INFO L85 PathProgramCache]: Analyzing trace with hash 192019704, now seen corresponding path program 1 times [2021-12-22 20:24:55,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:55,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067682080] [2021-12-22 20:24:55,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:55,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:55,516 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:55,521 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:55,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:55,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1308862396, now seen corresponding path program 1 times [2021-12-22 20:24:55,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:55,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587899584] [2021-12-22 20:24:55,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:55,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:55,532 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:55,549 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:58,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.12 08:24:58 BoogieIcfgContainer [2021-12-22 20:24:58,351 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-22 20:24:58,351 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 20:24:58,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 20:24:58,352 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 20:24:58,352 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:54" (3/4) ... [2021-12-22 20:24:58,354 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-22 20:24:58,401 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 20:24:58,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 20:24:58,402 INFO L158 Benchmark]: Toolchain (without parser) took 5300.64ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 52.9MB in the beginning and 93.8MB in the end (delta: -40.9MB). Peak memory consumption was 11.6kB. Max. memory is 16.1GB. [2021-12-22 20:24:58,402 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory is still 43.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:24:58,403 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.72ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 52.7MB in the beginning and 73.9MB in the end (delta: -21.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 20:24:58,403 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.35ms. Allocated memory is still 104.9MB. Free memory was 73.9MB in the beginning and 71.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:24:58,404 INFO L158 Benchmark]: Boogie Preprocessor took 59.05ms. Allocated memory is still 104.9MB. Free memory was 71.3MB in the beginning and 69.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:24:58,404 INFO L158 Benchmark]: RCFGBuilder took 461.38ms. Allocated memory is still 104.9MB. Free memory was 69.2MB in the beginning and 51.9MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-22 20:24:58,405 INFO L158 Benchmark]: BuchiAutomizer took 4190.03ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 51.9MB in the beginning and 95.8MB in the end (delta: -43.9MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2021-12-22 20:24:58,405 INFO L158 Benchmark]: Witness Printer took 50.00ms. Allocated memory is still 125.8MB. Free memory was 95.8MB in the beginning and 93.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:24:58,408 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory is still 43.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 460.72ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 52.7MB in the beginning and 73.9MB in the end (delta: -21.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.35ms. Allocated memory is still 104.9MB. Free memory was 73.9MB in the beginning and 71.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.05ms. Allocated memory is still 104.9MB. Free memory was 71.3MB in the beginning and 69.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 461.38ms. Allocated memory is still 104.9MB. Free memory was 69.2MB in the beginning and 51.9MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 4190.03ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 51.9MB in the beginning and 95.8MB in the end (delta: -43.9MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. * Witness Printer took 50.00ms. Allocated memory is still 125.8MB. Free memory was 95.8MB in the beginning and 93.8MB in the end (delta: 2.0MB). 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 297 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 397 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 297 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1139 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1139 mSDsluCounter, 1659 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1359 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 300 mSDtfsCounter, 131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 561]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a9f8c5f=0, methaneLevelCritical=0, tmp___0=1, \result=0, tmp=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36d30b59=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75aee0bf=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16e9e4c4=0, \result=1, retValue_acc=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35a7ecc=0, tmp___1=0, tmp___2=29, tmp=1, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60b0ff1a=0, tmp___1=0, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d16e71b=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7954e9ac=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@674c5fe9=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 561]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L458] int waterLevel = 1; [L459] int methaneLevelCritical = 0; [L623] int pumpRunning = 0; [L624] int systemActive = 1; [L817] int cleanupTimeShifts = 4; [L890] int retValue_acc ; [L891] int tmp ; [L895] FCALL select_helpers() [L896] FCALL select_features() [L897] CALL, EXPR valid_product() [L808] int retValue_acc ; [L811] retValue_acc = 1 [L812] return (retValue_acc); [L897] RET, EXPR valid_product() [L897] tmp = valid_product() [L899] COND TRUE \read(tmp) [L901] FCALL setup() [L902] CALL runTest() [L884] CALL test() [L552] int splverifierCounter ; [L553] int tmp ; [L554] int tmp___0 ; [L555] int tmp___1 ; [L556] int tmp___2 ; [L559] splverifierCounter = 0 Loop: [L561] COND TRUE 1 [L563] COND TRUE splverifierCounter < 4 [L569] tmp = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp)) [L579] tmp___0 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___0)) [L589] tmp___2 = __VERIFIER_nondet_int() [L591] COND TRUE \read(tmp___2) [L593] CALL startSystem() [L774] systemActive = 1 [L593] RET startSystem() [L608] CALL timeShift() [L630] COND FALSE !(\read(pumpRunning)) [L637] COND TRUE \read(systemActive) [L639] CALL processEnvironment() [L659] int tmp ; [L662] COND FALSE !(\read(pumpRunning)) [L677] FCALL processEnvironment__wrappee__base() [L639] RET processEnvironment() [L645] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L497] int retValue_acc ; [L500] retValue_acc = methaneLevelCritical [L501] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L529] int retValue_acc ; [L532] retValue_acc = waterLevel [L533] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L645] RET __utac_acc__Specification3_spec__1() [L608] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-22 20:24:58,456 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)