./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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_spec2_product58.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a5df7e7a530538a677becf014bfb990c6b0570c5e1058d85d7e78cec25f53253 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:28,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:28,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:28,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:28,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:28,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:28,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:28,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:28,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:28,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:28,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:28,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:28,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:28,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:28,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:28,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:28,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:28,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:28,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:28,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:28,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:28,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:28,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:28,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:28,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:28,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:28,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:28,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:28,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:28,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:28,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:28,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:28,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:28,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:28,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:28,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:28,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:28,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:28,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:28,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:28,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:28,225 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:28,241 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:28,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:28,242 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:28,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:28,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:28,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:28,243 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:28,243 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:28,243 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:28,243 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:28,244 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:28,244 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:28,244 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:28,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:28,244 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:28,245 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:28,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:28,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:28,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:28,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:28,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:28,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:28,245 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:28,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:28,246 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:28,247 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:28,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:28,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:28,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:28,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:28,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:28,248 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:28,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5df7e7a530538a677becf014bfb990c6b0570c5e1058d85d7e78cec25f53253 [2022-02-21 04:16:28,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:28,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:28,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:28,459 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:28,459 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:28,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c [2022-02-21 04:16:28,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/240e2e167/5fbe48d4b1044cd5a6a89245195846da/FLAGeb7d6bb53 [2022-02-21 04:16:28,909 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:28,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c [2022-02-21 04:16:28,919 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/240e2e167/5fbe48d4b1044cd5a6a89245195846da/FLAGeb7d6bb53 [2022-02-21 04:16:29,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/240e2e167/5fbe48d4b1044cd5a6a89245195846da [2022-02-21 04:16:29,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:29,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:29,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:29,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:29,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:29,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:29" (1/1) ... [2022-02-21 04:16:29,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19bd5e13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:29, skipping insertion in model container [2022-02-21 04:16:29,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:29" (1/1) ... [2022-02-21 04:16:29,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:29,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:29,570 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_spec2_product58.cil.c[19170,19183] [2022-02-21 04:16:29,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:29,577 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:29,661 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_spec2_product58.cil.c[19170,19183] [2022-02-21 04:16:29,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:29,686 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:29,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:29 WrapperNode [2022-02-21 04:16:29,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:29,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:29,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:29,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:29,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:29" (1/1) ... [2022-02-21 04:16:29,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:29" (1/1) ... [2022-02-21 04:16:29,772 INFO L137 Inliner]: procedures = 58, calls = 158, calls flagged for inlining = 55, calls inlined = 97, statements flattened = 744 [2022-02-21 04:16:29,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:29,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:29,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:29,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:29,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:29" (1/1) ... [2022-02-21 04:16:29,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:29" (1/1) ... [2022-02-21 04:16:29,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:29" (1/1) ... [2022-02-21 04:16:29,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:29" (1/1) ... [2022-02-21 04:16:29,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:29" (1/1) ... [2022-02-21 04:16:29,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:29" (1/1) ... [2022-02-21 04:16:29,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:29" (1/1) ... [2022-02-21 04:16:29,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:29,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:29,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:29,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:29,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:29" (1/1) ... [2022-02-21 04:16:29,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:29,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:29,858 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) [2022-02-21 04:16:29,860 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 [2022-02-21 04:16:29,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:29,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:29,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:29,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:29,928 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:29,929 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:30,348 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:30,354 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:30,354 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:30,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:30 BoogieIcfgContainer [2022-02-21 04:16:30,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:30,357 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:30,357 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:30,359 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:30,359 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:30,360 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:29" (1/3) ... [2022-02-21 04:16:30,360 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6de9f22b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:30, skipping insertion in model container [2022-02-21 04:16:30,361 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:30,361 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:29" (2/3) ... [2022-02-21 04:16:30,361 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6de9f22b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:30, skipping insertion in model container [2022-02-21 04:16:30,361 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:30,361 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:30" (3/3) ... [2022-02-21 04:16:30,362 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product58.cil.c [2022-02-21 04:16:30,400 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:30,400 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:30,401 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:30,401 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:30,401 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:30,401 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:30,401 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:30,401 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:30,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 191 states, 190 states have (on average 1.368421052631579) internal successors, (260), 190 states have internal predecessors, (260), 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) [2022-02-21 04:16:30,460 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2022-02-21 04:16:30,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:30,461 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:30,468 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:30,468 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:30,468 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:30,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 191 states, 190 states have (on average 1.368421052631579) internal successors, (260), 190 states have internal predecessors, (260), 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) [2022-02-21 04:16:30,484 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2022-02-21 04:16:30,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:30,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:30,484 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:30,485 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:30,488 INFO L791 eck$LassoCheckResult]: Stem: 171#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 55#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 76#L890true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 47#L883true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 130#L898true main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 160#L986true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 37#L962true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 5#L832true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 62#L540-2true [2022-02-21 04:16:30,488 INFO L793 eck$LassoCheckResult]: Loop: 62#L540-2true assume !false; 119#L541true assume test_~splverifierCounter~0#1 < 4; 12#L542true test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 190#L550true assume !(0 != test_~tmp~3#1); 24#L550-2true test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 30#L560true assume !(0 != test_~tmp___0~0#1); 141#L560-2true test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 54#L570true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 70#L578true assume 0 != test_~tmp___1~0#1; 173#L578-2true assume { :begin_inline_timeShift } true; 118#L609true assume !(0 != ~pumpRunning~0); 188#L609-2true assume !(0 != ~systemActive~0); 134#L616-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 124#L101-2true __utac_acc__Specification2_spec__2_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret50#1;havoc __utac_acc__Specification2_spec__2_#t~ret50#1; 108#L843true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 39#L843-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 102#L626true assume { :end_inline_timeShift } true; 62#L540-2true [2022-02-21 04:16:30,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:30,492 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:16:30,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:30,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754497457] [2022-02-21 04:16:30,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:30,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:30,614 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:30,643 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:30,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:30,645 INFO L85 PathProgramCache]: Analyzing trace with hash -580592854, now seen corresponding path program 1 times [2022-02-21 04:16:30,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:30,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418494507] [2022-02-21 04:16:30,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:30,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:30,652 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:30,659 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:30,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:30,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1316534431, now seen corresponding path program 1 times [2022-02-21 04:16:30,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:30,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278739658] [2022-02-21 04:16:30,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:30,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:30,793 INFO L290 TraceCheckUtils]: 0: Hoare triple {199#true} 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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; {201#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:30,794 INFO L290 TraceCheckUtils]: 1: Hoare triple {201#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; {201#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:30,795 INFO L290 TraceCheckUtils]: 2: Hoare triple {201#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {201#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:30,795 INFO L290 TraceCheckUtils]: 3: Hoare triple {201#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; {202#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:30,796 INFO L290 TraceCheckUtils]: 4: Hoare triple {202#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; {203#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} is VALID [2022-02-21 04:16:30,796 INFO L290 TraceCheckUtils]: 5: Hoare triple {203#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:30,797 INFO L290 TraceCheckUtils]: 6: Hoare triple {204#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:30,797 INFO L290 TraceCheckUtils]: 7: Hoare triple {204#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:30,798 INFO L290 TraceCheckUtils]: 8: Hoare triple {204#(not (= 0 ~systemActive~0))} assume !false; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:30,798 INFO L290 TraceCheckUtils]: 9: Hoare triple {204#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:30,798 INFO L290 TraceCheckUtils]: 10: Hoare triple {204#(not (= 0 ~systemActive~0))} test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:30,799 INFO L290 TraceCheckUtils]: 11: Hoare triple {204#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~3#1); {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:30,800 INFO L290 TraceCheckUtils]: 12: Hoare triple {204#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:30,800 INFO L290 TraceCheckUtils]: 13: Hoare triple {204#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:30,800 INFO L290 TraceCheckUtils]: 14: Hoare triple {204#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:30,801 INFO L290 TraceCheckUtils]: 15: Hoare triple {204#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:30,801 INFO L290 TraceCheckUtils]: 16: Hoare triple {204#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___1~0#1; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:30,802 INFO L290 TraceCheckUtils]: 17: Hoare triple {204#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:30,802 INFO L290 TraceCheckUtils]: 18: Hoare triple {204#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:30,803 INFO L290 TraceCheckUtils]: 19: Hoare triple {204#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {200#false} is VALID [2022-02-21 04:16:30,804 INFO L290 TraceCheckUtils]: 20: Hoare triple {200#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {200#false} is VALID [2022-02-21 04:16:30,804 INFO L290 TraceCheckUtils]: 21: Hoare triple {200#false} __utac_acc__Specification2_spec__2_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret50#1;havoc __utac_acc__Specification2_spec__2_#t~ret50#1; {200#false} is VALID [2022-02-21 04:16:30,804 INFO L290 TraceCheckUtils]: 22: Hoare triple {200#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; {200#false} is VALID [2022-02-21 04:16:30,805 INFO L290 TraceCheckUtils]: 23: Hoare triple {200#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {200#false} is VALID [2022-02-21 04:16:30,806 INFO L290 TraceCheckUtils]: 24: Hoare triple {200#false} assume { :end_inline_timeShift } true; {200#false} is VALID [2022-02-21 04:16:30,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:30,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:30,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278739658] [2022-02-21 04:16:30,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278739658] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:30,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:30,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:30,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921277578] [2022-02-21 04:16:30,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:30,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:30,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:30,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:30,958 INFO L87 Difference]: Start difference. First operand has 191 states, 190 states have (on average 1.368421052631579) internal successors, (260), 190 states have internal predecessors, (260), 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 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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) [2022-02-21 04:16:31,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:31,339 INFO L93 Difference]: Finished difference Result 188 states and 246 transitions. [2022-02-21 04:16:31,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:16:31,343 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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) [2022-02-21 04:16:31,362 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:31,368 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 188 states and 246 transitions. [2022-02-21 04:16:31,382 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2022-02-21 04:16:31,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 188 states to 178 states and 236 transitions. [2022-02-21 04:16:31,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 178 [2022-02-21 04:16:31,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 178 [2022-02-21 04:16:31,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 178 states and 236 transitions. [2022-02-21 04:16:31,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:31,394 INFO L681 BuchiCegarLoop]: Abstraction has 178 states and 236 transitions. [2022-02-21 04:16:31,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states and 236 transitions. [2022-02-21 04:16:31,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2022-02-21 04:16:31,416 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:31,417 INFO L82 GeneralOperation]: Start isEquivalent. First operand 178 states and 236 transitions. Second operand has 178 states, 178 states have (on average 1.3258426966292134) internal successors, (236), 177 states have internal predecessors, (236), 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) [2022-02-21 04:16:31,418 INFO L74 IsIncluded]: Start isIncluded. First operand 178 states and 236 transitions. Second operand has 178 states, 178 states have (on average 1.3258426966292134) internal successors, (236), 177 states have internal predecessors, (236), 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) [2022-02-21 04:16:31,419 INFO L87 Difference]: Start difference. First operand 178 states and 236 transitions. Second operand has 178 states, 178 states have (on average 1.3258426966292134) internal successors, (236), 177 states have internal predecessors, (236), 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) [2022-02-21 04:16:31,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:31,424 INFO L93 Difference]: Finished difference Result 178 states and 236 transitions. [2022-02-21 04:16:31,424 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 236 transitions. [2022-02-21 04:16:31,426 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:31,426 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:31,426 INFO L74 IsIncluded]: Start isIncluded. First operand has 178 states, 178 states have (on average 1.3258426966292134) internal successors, (236), 177 states have internal predecessors, (236), 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 178 states and 236 transitions. [2022-02-21 04:16:31,427 INFO L87 Difference]: Start difference. First operand has 178 states, 178 states have (on average 1.3258426966292134) internal successors, (236), 177 states have internal predecessors, (236), 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 178 states and 236 transitions. [2022-02-21 04:16:31,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:31,431 INFO L93 Difference]: Finished difference Result 178 states and 236 transitions. [2022-02-21 04:16:31,431 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 236 transitions. [2022-02-21 04:16:31,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:31,432 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:31,432 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:31,432 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:31,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 178 states have (on average 1.3258426966292134) internal successors, (236), 177 states have internal predecessors, (236), 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) [2022-02-21 04:16:31,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 236 transitions. [2022-02-21 04:16:31,437 INFO L704 BuchiCegarLoop]: Abstraction has 178 states and 236 transitions. [2022-02-21 04:16:31,437 INFO L587 BuchiCegarLoop]: Abstraction has 178 states and 236 transitions. [2022-02-21 04:16:31,437 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:31,437 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 178 states and 236 transitions. [2022-02-21 04:16:31,438 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2022-02-21 04:16:31,438 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:31,438 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:31,439 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:31,439 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] [2022-02-21 04:16:31,439 INFO L791 eck$LassoCheckResult]: Stem: 572#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 491#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 492#L890 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 475#L883 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 476#L898 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 561#L986 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 462#L962 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 401#L832 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 402#L540-2 [2022-02-21 04:16:31,439 INFO L793 eck$LassoCheckResult]: Loop: 402#L540-2 assume !false; 505#L541 assume test_~splverifierCounter~0#1 < 4; 413#L542 test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 414#L550 assume !(0 != test_~tmp~3#1); 440#L550-2 test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 441#L560 assume !(0 != test_~tmp___0~0#1); 431#L560-2 test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 488#L570 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 489#L821 assume { :end_inline_startSystem } true; 511#L578-2 assume { :begin_inline_timeShift } true; 553#L609 assume !(0 != ~pumpRunning~0); 554#L609-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 481#L667 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 483#L641-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 442#L633-3 assume { :end_inline_processEnvironment__wrappee__base } true; 443#L641-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 523#L667-1 assume { :end_inline_processEnvironment } true; 564#L616-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 556#L101-2 __utac_acc__Specification2_spec__2_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret50#1;havoc __utac_acc__Specification2_spec__2_#t~ret50#1; 545#L843 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 463#L843-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 464#L626 assume { :end_inline_timeShift } true; 402#L540-2 [2022-02-21 04:16:31,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:31,440 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:16:31,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:31,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483086917] [2022-02-21 04:16:31,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:31,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:31,461 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:31,477 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:31,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:31,478 INFO L85 PathProgramCache]: Analyzing trace with hash 627122298, now seen corresponding path program 1 times [2022-02-21 04:16:31,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:31,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880463433] [2022-02-21 04:16:31,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:31,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:31,492 INFO L290 TraceCheckUtils]: 0: Hoare triple {936#true} assume !false; {936#true} is VALID [2022-02-21 04:16:31,493 INFO L290 TraceCheckUtils]: 1: Hoare triple {936#true} assume test_~splverifierCounter~0#1 < 4; {936#true} is VALID [2022-02-21 04:16:31,493 INFO L290 TraceCheckUtils]: 2: Hoare triple {936#true} test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; {936#true} is VALID [2022-02-21 04:16:31,493 INFO L290 TraceCheckUtils]: 3: Hoare triple {936#true} assume !(0 != test_~tmp~3#1); {936#true} is VALID [2022-02-21 04:16:31,493 INFO L290 TraceCheckUtils]: 4: Hoare triple {936#true} test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {936#true} is VALID [2022-02-21 04:16:31,493 INFO L290 TraceCheckUtils]: 5: Hoare triple {936#true} assume !(0 != test_~tmp___0~0#1); {936#true} is VALID [2022-02-21 04:16:31,494 INFO L290 TraceCheckUtils]: 6: Hoare triple {936#true} test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {936#true} is VALID [2022-02-21 04:16:31,494 INFO L290 TraceCheckUtils]: 7: Hoare triple {936#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {936#true} is VALID [2022-02-21 04:16:31,494 INFO L290 TraceCheckUtils]: 8: Hoare triple {936#true} assume { :end_inline_startSystem } true; {936#true} is VALID [2022-02-21 04:16:31,494 INFO L290 TraceCheckUtils]: 9: Hoare triple {936#true} assume { :begin_inline_timeShift } true; {936#true} is VALID [2022-02-21 04:16:31,494 INFO L290 TraceCheckUtils]: 10: Hoare triple {936#true} assume !(0 != ~pumpRunning~0); {938#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:31,495 INFO L290 TraceCheckUtils]: 11: Hoare triple {938#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {938#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:31,495 INFO L290 TraceCheckUtils]: 12: Hoare triple {938#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; {938#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:31,496 INFO L290 TraceCheckUtils]: 13: Hoare triple {938#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {937#false} is VALID [2022-02-21 04:16:31,496 INFO L290 TraceCheckUtils]: 14: Hoare triple {937#false} assume { :end_inline_processEnvironment__wrappee__base } true; {937#false} is VALID [2022-02-21 04:16:31,496 INFO L290 TraceCheckUtils]: 15: Hoare triple {937#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {937#false} is VALID [2022-02-21 04:16:31,496 INFO L290 TraceCheckUtils]: 16: Hoare triple {937#false} assume { :end_inline_processEnvironment } true; {937#false} is VALID [2022-02-21 04:16:31,496 INFO L290 TraceCheckUtils]: 17: Hoare triple {937#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {937#false} is VALID [2022-02-21 04:16:31,496 INFO L290 TraceCheckUtils]: 18: Hoare triple {937#false} __utac_acc__Specification2_spec__2_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret50#1;havoc __utac_acc__Specification2_spec__2_#t~ret50#1; {937#false} is VALID [2022-02-21 04:16:31,498 INFO L290 TraceCheckUtils]: 19: Hoare triple {937#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; {937#false} is VALID [2022-02-21 04:16:31,498 INFO L290 TraceCheckUtils]: 20: Hoare triple {937#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {937#false} is VALID [2022-02-21 04:16:31,499 INFO L290 TraceCheckUtils]: 21: Hoare triple {937#false} assume { :end_inline_timeShift } true; {937#false} is VALID [2022-02-21 04:16:31,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:31,499 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:31,499 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880463433] [2022-02-21 04:16:31,499 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880463433] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:31,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:31,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:16:31,500 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506056830] [2022-02-21 04:16:31,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:31,500 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:31,500 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:31,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:16:31,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:16:31,501 INFO L87 Difference]: Start difference. First operand 178 states and 236 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:31,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:31,705 INFO L93 Difference]: Finished difference Result 243 states and 311 transitions. [2022-02-21 04:16:31,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:16:31,706 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:31,718 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:31,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 243 states and 311 transitions. [2022-02-21 04:16:31,725 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 168 [2022-02-21 04:16:31,732 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 243 states to 243 states and 311 transitions. [2022-02-21 04:16:31,732 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 243 [2022-02-21 04:16:31,733 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 243 [2022-02-21 04:16:31,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 243 states and 311 transitions. [2022-02-21 04:16:31,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:31,736 INFO L681 BuchiCegarLoop]: Abstraction has 243 states and 311 transitions. [2022-02-21 04:16:31,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states and 311 transitions. [2022-02-21 04:16:31,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2022-02-21 04:16:31,748 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:31,748 INFO L82 GeneralOperation]: Start isEquivalent. First operand 243 states and 311 transitions. Second operand has 243 states, 243 states have (on average 1.2798353909465021) internal successors, (311), 242 states have internal predecessors, (311), 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) [2022-02-21 04:16:31,749 INFO L74 IsIncluded]: Start isIncluded. First operand 243 states and 311 transitions. Second operand has 243 states, 243 states have (on average 1.2798353909465021) internal successors, (311), 242 states have internal predecessors, (311), 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) [2022-02-21 04:16:31,749 INFO L87 Difference]: Start difference. First operand 243 states and 311 transitions. Second operand has 243 states, 243 states have (on average 1.2798353909465021) internal successors, (311), 242 states have internal predecessors, (311), 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) [2022-02-21 04:16:31,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:31,757 INFO L93 Difference]: Finished difference Result 243 states and 311 transitions. [2022-02-21 04:16:31,757 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 311 transitions. [2022-02-21 04:16:31,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:31,758 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:31,759 INFO L74 IsIncluded]: Start isIncluded. First operand has 243 states, 243 states have (on average 1.2798353909465021) internal successors, (311), 242 states have internal predecessors, (311), 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 243 states and 311 transitions. [2022-02-21 04:16:31,761 INFO L87 Difference]: Start difference. First operand has 243 states, 243 states have (on average 1.2798353909465021) internal successors, (311), 242 states have internal predecessors, (311), 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 243 states and 311 transitions. [2022-02-21 04:16:31,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:31,770 INFO L93 Difference]: Finished difference Result 243 states and 311 transitions. [2022-02-21 04:16:31,770 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 311 transitions. [2022-02-21 04:16:31,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:31,773 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:31,774 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:31,774 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:31,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 243 states have (on average 1.2798353909465021) internal successors, (311), 242 states have internal predecessors, (311), 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) [2022-02-21 04:16:31,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 311 transitions. [2022-02-21 04:16:31,782 INFO L704 BuchiCegarLoop]: Abstraction has 243 states and 311 transitions. [2022-02-21 04:16:31,783 INFO L587 BuchiCegarLoop]: Abstraction has 243 states and 311 transitions. [2022-02-21 04:16:31,785 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:31,785 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 243 states and 311 transitions. [2022-02-21 04:16:31,787 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 168 [2022-02-21 04:16:31,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:31,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:31,788 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:31,788 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:31,789 INFO L791 eck$LassoCheckResult]: Stem: 1375#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 1272#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1273#L890 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1256#L883 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 1257#L898 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1355#L986 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1244#L962 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1186#L832 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1187#L540-2 [2022-02-21 04:16:31,789 INFO L793 eck$LassoCheckResult]: Loop: 1187#L540-2 assume !false; 1415#L541 assume test_~splverifierCounter~0#1 < 4; 1414#L542 test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 1412#L550 assume !(0 != test_~tmp~3#1); 1410#L550-2 test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 1408#L560 assume !(0 != test_~tmp___0~0#1); 1360#L560-2 test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 1269#L570 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1270#L821 assume { :end_inline_startSystem } true; 1294#L578-2 assume { :begin_inline_timeShift } true; 1344#L609 assume !(0 != ~pumpRunning~0); 1345#L609-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1264#L667 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1265#L641-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1366#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1232#L146-1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 1233#L787-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1288#L787-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1241#L793-1 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 1205#L645-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1207#L633-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1354#L641-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1333#L667-1 assume { :end_inline_processEnvironment } true; 1423#L616-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1422#L101-2 __utac_acc__Specification2_spec__2_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret50#1;havoc __utac_acc__Specification2_spec__2_#t~ret50#1; 1420#L843 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 1417#L843-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1416#L626 assume { :end_inline_timeShift } true; 1187#L540-2 [2022-02-21 04:16:31,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:31,793 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:16:31,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:31,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014476220] [2022-02-21 04:16:31,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:31,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:31,810 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:31,830 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:31,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:31,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1949532366, now seen corresponding path program 1 times [2022-02-21 04:16:31,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:31,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344139540] [2022-02-21 04:16:31,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:31,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:31,841 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:31,846 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:31,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:31,847 INFO L85 PathProgramCache]: Analyzing trace with hash -950461797, now seen corresponding path program 1 times [2022-02-21 04:16:31,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:31,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696822578] [2022-02-21 04:16:31,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:31,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:31,876 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:31,891 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:34,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:34 BoogieIcfgContainer [2022-02-21 04:16:34,517 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:34,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:34,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:34,518 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:34,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:30" (3/4) ... [2022-02-21 04:16:34,519 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:34,570 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:34,571 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:34,571 INFO L158 Benchmark]: Toolchain (without parser) took 5257.49ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 62.1MB in the beginning and 117.9MB in the end (delta: -55.8MB). Peak memory consumption was 74.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:34,572 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory was 79.1MB in the beginning and 79.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:34,572 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.63ms. Allocated memory is still 100.7MB. Free memory was 61.8MB in the beginning and 65.1MB in the end (delta: -3.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:16:34,572 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.34ms. Allocated memory is still 100.7MB. Free memory was 65.1MB in the beginning and 59.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:16:34,573 INFO L158 Benchmark]: Boogie Preprocessor took 47.33ms. Allocated memory is still 100.7MB. Free memory was 59.8MB in the beginning and 57.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:34,573 INFO L158 Benchmark]: RCFGBuilder took 534.90ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 57.3MB in the beginning and 88.3MB in the end (delta: -31.1MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2022-02-21 04:16:34,573 INFO L158 Benchmark]: BuchiAutomizer took 4160.25ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 88.3MB in the beginning and 37.4MB in the end (delta: 51.0MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. [2022-02-21 04:16:34,573 INFO L158 Benchmark]: Witness Printer took 53.43ms. Allocated memory is still 146.8MB. Free memory was 37.4MB in the beginning and 117.9MB in the end (delta: -80.5MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2022-02-21 04:16:34,575 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory was 79.1MB in the beginning and 79.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.63ms. Allocated memory is still 100.7MB. Free memory was 61.8MB in the beginning and 65.1MB in the end (delta: -3.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.34ms. Allocated memory is still 100.7MB. Free memory was 65.1MB in the beginning and 59.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.33ms. Allocated memory is still 100.7MB. Free memory was 59.8MB in the beginning and 57.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 534.90ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 57.3MB in the beginning and 88.3MB in the end (delta: -31.1MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 4160.25ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 88.3MB in the beginning and 37.4MB in the end (delta: 51.0MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. * Witness Printer took 53.43ms. Allocated memory is still 146.8MB. Free memory was 37.4MB in the beginning and 117.9MB in the end (delta: -80.5MB). Peak memory consumption was 2.3MB. 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 243 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 243 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 894 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 894 mSDsluCounter, 574 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 112 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 462 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 540]: 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, tmp___0=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@86c403d=29, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43c8a223=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77454de1=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cb8a0c9=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@301119a4=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=1, \result=0, retValue_acc=0, tmp=0, retValue_acc=0, \result=1, tmp=1, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e65ad38=0, tmp___2=29, methAndRunningLastTime=0, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17e4df7b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@272a0473=0, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d6e345c=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ee8e7d2=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 540]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L330] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L601] int pumpRunning = 0; [L602] int systemActive = 1; [L826] int methAndRunningLastTime ; [L903] int cleanupTimeShifts = 4; [L977] int retValue_acc ; [L978] int tmp ; [L982] FCALL select_helpers() [L983] FCALL select_features() [L984] CALL, EXPR valid_product() [L894] int retValue_acc ; [L897] retValue_acc = 1 [L898] return (retValue_acc); [L984] RET, EXPR valid_product() [L984] tmp = valid_product() [L986] COND TRUE \read(tmp) [L988] FCALL setup() [L989] CALL runTest() [L970] CALL __utac_acc__Specification2_spec__1() [L831] methAndRunningLastTime = 0 [L970] RET __utac_acc__Specification2_spec__1() [L971] CALL test() [L531] int splverifierCounter ; [L532] int tmp ; [L533] int tmp___0 ; [L534] int tmp___1 ; [L535] int tmp___2 ; [L538] splverifierCounter = 0 Loop: [L540] COND TRUE 1 [L542] COND TRUE splverifierCounter < 4 [L548] tmp = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp)) [L558] tmp___0 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___0)) [L568] tmp___2 = __VERIFIER_nondet_int() [L570] COND TRUE \read(tmp___2) [L572] CALL startSystem() [L820] systemActive = 1 [L572] RET startSystem() [L585] CALL timeShift() [L609] COND FALSE !(\read(pumpRunning)) [L616] COND TRUE \read(systemActive) [L618] CALL processEnvironment() [L664] int tmp ; [L667] COND FALSE !(\read(pumpRunning)) [L682] CALL processEnvironment__wrappee__highWaterSensor() [L638] int tmp ; [L641] COND TRUE ! pumpRunning [L643] CALL, EXPR isHighWaterLevel() [L779] int retValue_acc ; [L780] int tmp ; [L781] int tmp___0 ; [L785] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L785] RET, EXPR isHighWaterSensorDry() [L785] tmp = isHighWaterSensorDry() [L787] COND TRUE \read(tmp) [L788] tmp___0 = 0 [L792] retValue_acc = tmp___0 [L793] return (retValue_acc); [L643] RET, EXPR isHighWaterLevel() [L643] tmp = isHighWaterLevel() [L645] COND FALSE !(\read(tmp)) [L651] FCALL processEnvironment__wrappee__base() [L682] RET processEnvironment__wrappee__highWaterSensor() [L618] RET processEnvironment() [L624] CALL __utac_acc__Specification2_spec__2() [L836] int tmp ; [L837] int tmp___0 ; [L841] CALL, EXPR isMethaneLevelCritical() [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); [L841] RET, EXPR isMethaneLevelCritical() [L841] tmp = isMethaneLevelCritical() [L843] COND FALSE !(\read(tmp)) [L859] methAndRunningLastTime = 0 [L624] RET __utac_acc__Specification2_spec__2() [L585] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:34,608 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)