./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product38.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product38.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 b77aa0b6bb6bc59dbd8795b5281a5f1c0be2cf01c1e68aab61a4eabad5ef322b --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 15:57:02,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:57:02,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:57:02,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:57:02,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:57:02,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:57:02,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:57:02,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:57:02,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:57:02,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:57:02,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:57:02,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:57:02,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:57:02,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:57:02,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:57:02,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:57:02,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:57:02,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:57:02,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:57:02,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:57:02,099 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:57:02,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:57:02,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:57:02,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:57:02,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:57:02,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:57:02,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:57:02,107 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:57:02,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:57:02,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:57:02,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:57:02,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:57:02,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:57:02,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:57:02,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:57:02,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:57:02,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:57:02,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:57:02,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:57:02,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:57:02,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:57:02,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:57:02,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 15:57:02,138 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:57:02,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:57:02,139 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:57:02,139 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:57:02,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:57:02,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:57:02,141 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:57:02,141 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:57:02,141 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:57:02,142 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:57:02,142 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:57:02,142 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:57:02,142 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:57:02,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:57:02,142 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 15:57:02,142 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:57:02,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:57:02,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 15:57:02,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:57:02,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:57:02,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:57:02,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:57:02,145 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 15:57:02,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:57:02,145 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:57:02,145 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:57:02,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:57:02,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:57:02,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:57:02,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:57:02,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:57:02,147 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:57:02,147 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b77aa0b6bb6bc59dbd8795b5281a5f1c0be2cf01c1e68aab61a4eabad5ef322b [2022-07-14 15:57:02,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:57:02,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:57:02,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:57:02,355 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:57:02,355 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:57:02,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product38.cil.c [2022-07-14 15:57:02,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c36eebde/cc092c035b424fadbf1b307daac4dba7/FLAG70b991ed1 [2022-07-14 15:57:02,853 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:57:02,853 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product38.cil.c [2022-07-14 15:57:02,860 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c36eebde/cc092c035b424fadbf1b307daac4dba7/FLAG70b991ed1 [2022-07-14 15:57:02,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c36eebde/cc092c035b424fadbf1b307daac4dba7 [2022-07-14 15:57:02,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:57:02,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:57:02,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:57:02,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:57:02,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:57:02,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:57:02" (1/1) ... [2022-07-14 15:57:02,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6983349c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:02, skipping insertion in model container [2022-07-14 15:57:02,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:57:02" (1/1) ... [2022-07-14 15:57:02,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:57:02,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:57:03,143 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product38.cil.c[16839,16852] [2022-07-14 15:57:03,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:57:03,159 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:57:03,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product38.cil.c[16839,16852] [2022-07-14 15:57:03,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:57:03,224 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:57:03,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:03 WrapperNode [2022-07-14 15:57:03,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:57:03,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:57:03,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:57:03,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:57:03,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:03" (1/1) ... [2022-07-14 15:57:03,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:03" (1/1) ... [2022-07-14 15:57:03,286 INFO L137 Inliner]: procedures = 54, calls = 154, calls flagged for inlining = 51, calls inlined = 78, statements flattened = 584 [2022-07-14 15:57:03,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:57:03,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:57:03,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:57:03,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:57:03,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:03" (1/1) ... [2022-07-14 15:57:03,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:03" (1/1) ... [2022-07-14 15:57:03,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:03" (1/1) ... [2022-07-14 15:57:03,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:03" (1/1) ... [2022-07-14 15:57:03,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:03" (1/1) ... [2022-07-14 15:57:03,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:03" (1/1) ... [2022-07-14 15:57:03,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:03" (1/1) ... [2022-07-14 15:57:03,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:57:03,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:57:03,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:57:03,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:57:03,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:03" (1/1) ... [2022-07-14 15:57:03,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:57:03,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:57:03,356 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) [2022-07-14 15:57:03,371 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 [2022-07-14 15:57:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 15:57:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 15:57:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:57:03,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:57:03,483 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:57:03,484 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:57:03,777 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:57:03,782 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:57:03,782 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 15:57:03,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:03 BoogieIcfgContainer [2022-07-14 15:57:03,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:57:03,785 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:57:03,785 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:57:03,788 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:57:03,788 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:03,788 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:57:02" (1/3) ... [2022-07-14 15:57:03,789 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@649fd687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:57:03, skipping insertion in model container [2022-07-14 15:57:03,789 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:03,789 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:03" (2/3) ... [2022-07-14 15:57:03,794 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@649fd687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:57:03, skipping insertion in model container [2022-07-14 15:57:03,795 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:03,795 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:03" (3/3) ... [2022-07-14 15:57:03,796 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product38.cil.c [2022-07-14 15:57:03,831 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:57:03,831 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:57:03,831 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:57:03,831 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:57:03,831 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:57:03,832 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:57:03,832 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:57:03,832 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:57:03,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 157 states, 156 states have (on average 1.3717948717948718) internal successors, (214), 156 states have internal predecessors, (214), 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) [2022-07-14 15:57:03,855 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2022-07-14 15:57:03,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:03,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:03,859 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:03,859 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:03,860 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:57:03,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 157 states, 156 states have (on average 1.3717948717948718) internal successors, (214), 156 states have internal predecessors, (214), 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) [2022-07-14 15:57:03,865 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2022-07-14 15:57:03,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:03,865 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:03,865 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:03,866 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:03,869 INFO L752 eck$LassoCheckResult]: Stem: 146#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 46#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 51#L176true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 72#L169true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 105#L184true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 66#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 137#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 50#L786-2true [2022-07-14 15:57:03,869 INFO L754 eck$LassoCheckResult]: Loop: 50#L786-2true assume !false; 147#L787true assume test_~splverifierCounter~0#1 < 4; 156#L788true test_~tmp~8#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 109#L796true assume !(0 != test_~tmp~8#1); 69#L796-2true test_~tmp___0~2#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 84#L806true assume !(0 != test_~tmp___0~2#1); 116#L806-2true test_~tmp___2~0#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 90#L816true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 122#L824true assume 0 != test_~tmp___1~0#1; 114#L824-2true assume { :begin_inline_timeShift } true; 138#L597true assume !(0 != ~pumpRunning~0); 75#L597-2true assume !(0 != ~systemActive~0); 20#L604-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret6#1, __utac_acc__Specification1_spec__1_#t~ret7#1, __utac_acc__Specification1_spec__1_~tmp~1#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~1#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 96#L896-1true __utac_acc__Specification1_spec__1_#t~ret6#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~1#1 := __utac_acc__Specification1_spec__1_#t~ret6#1;havoc __utac_acc__Specification1_spec__1_#t~ret6#1; 127#L200true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1#1); 24#L200-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 44#L614true assume { :end_inline_timeShift } true; 50#L786-2true [2022-07-14 15:57:03,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:03,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-14 15:57:03,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:03,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208062733] [2022-07-14 15:57:03,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:03,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:03,994 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:04,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:04,041 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:04,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:04,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1718428226, now seen corresponding path program 1 times [2022-07-14 15:57:04,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:04,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015868103] [2022-07-14 15:57:04,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:04,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:04,067 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:04,074 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:04,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:04,080 INFO L85 PathProgramCache]: Analyzing trace with hash 786746622, now seen corresponding path program 1 times [2022-07-14 15:57:04,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:04,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465799102] [2022-07-14 15:57:04,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:04,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:57:04,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:57:04,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:57:04,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465799102] [2022-07-14 15:57:04,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465799102] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:57:04,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:57:04,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 15:57:04,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588286944] [2022-07-14 15:57:04,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:57:04,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:57:04,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 15:57:04,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 15:57:04,354 INFO L87 Difference]: Start difference. First operand has 157 states, 156 states have (on average 1.3717948717948718) internal successors, (214), 156 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:57:04,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:57:04,425 INFO L93 Difference]: Finished difference Result 154 states and 200 transitions. [2022-07-14 15:57:04,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 15:57:04,431 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 200 transitions. [2022-07-14 15:57:04,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 97 [2022-07-14 15:57:04,445 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 144 states and 190 transitions. [2022-07-14 15:57:04,446 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 144 [2022-07-14 15:57:04,448 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 144 [2022-07-14 15:57:04,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 190 transitions. [2022-07-14 15:57:04,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:57:04,449 INFO L369 hiAutomatonCegarLoop]: Abstraction has 144 states and 190 transitions. [2022-07-14 15:57:04,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 190 transitions. [2022-07-14 15:57:04,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2022-07-14 15:57:04,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 144 states have (on average 1.3194444444444444) internal successors, (190), 143 states have internal predecessors, (190), 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) [2022-07-14 15:57:04,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 190 transitions. [2022-07-14 15:57:04,478 INFO L392 hiAutomatonCegarLoop]: Abstraction has 144 states and 190 transitions. [2022-07-14 15:57:04,478 INFO L374 stractBuchiCegarLoop]: Abstraction has 144 states and 190 transitions. [2022-07-14 15:57:04,479 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:57:04,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 190 transitions. [2022-07-14 15:57:04,483 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 97 [2022-07-14 15:57:04,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:04,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:04,483 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:04,483 INFO L180 hiAutomatonCegarLoop]: 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] [2022-07-14 15:57:04,484 INFO L752 eck$LassoCheckResult]: Stem: 470#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 403#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 404#L176 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 407#L169 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 431#L184 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 421#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 422#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 400#L786-2 [2022-07-14 15:57:04,484 INFO L754 eck$LassoCheckResult]: Loop: 400#L786-2 assume !false; 405#L787 assume test_~splverifierCounter~0#1 < 4; 471#L788 test_~tmp~8#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 454#L796 assume !(0 != test_~tmp~8#1); 427#L796-2 test_~tmp___0~2#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 428#L806 assume !(0 != test_~tmp___0~2#1); 379#L806-2 test_~tmp___2~0#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 446#L816 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 341#L772 assume { :end_inline_startSystem } true; 342#L824-2 assume { :begin_inline_timeShift } true; 459#L597 assume !(0 != ~pumpRunning~0); 433#L597-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 391#L655 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 374#L629-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 375#L621-3 assume { :end_inline_processEnvironment__wrappee__base } true; 380#L629-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 381#L655-1 assume { :end_inline_processEnvironment } true; 363#L604-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret6#1, __utac_acc__Specification1_spec__1_#t~ret7#1, __utac_acc__Specification1_spec__1_~tmp~1#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~1#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 364#L896-1 __utac_acc__Specification1_spec__1_#t~ret6#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~1#1 := __utac_acc__Specification1_spec__1_#t~ret6#1;havoc __utac_acc__Specification1_spec__1_#t~ret6#1; 451#L200 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1#1); 372#L200-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 373#L614 assume { :end_inline_timeShift } true; 400#L786-2 [2022-07-14 15:57:04,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:04,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-14 15:57:04,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:04,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371668155] [2022-07-14 15:57:04,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:04,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:04,518 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:04,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:04,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:04,539 INFO L85 PathProgramCache]: Analyzing trace with hash -2104663928, now seen corresponding path program 1 times [2022-07-14 15:57:04,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:04,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256938454] [2022-07-14 15:57:04,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:04,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:57:04,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:57:04,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:57:04,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256938454] [2022-07-14 15:57:04,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256938454] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:57:04,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:57:04,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 15:57:04,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247325708] [2022-07-14 15:57:04,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:57:04,563 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 15:57:04,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:57:04,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 15:57:04,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 15:57:04,565 INFO L87 Difference]: Start difference. First operand 144 states and 190 transitions. cyclomatic complexity: 48 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) [2022-07-14 15:57:04,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:57:04,640 INFO L93 Difference]: Finished difference Result 200 states and 253 transitions. [2022-07-14 15:57:04,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 15:57:04,641 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 200 states and 253 transitions. [2022-07-14 15:57:04,643 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 140 [2022-07-14 15:57:04,645 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 200 states to 200 states and 253 transitions. [2022-07-14 15:57:04,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 200 [2022-07-14 15:57:04,647 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 200 [2022-07-14 15:57:04,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 200 states and 253 transitions. [2022-07-14 15:57:04,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:57:04,649 INFO L369 hiAutomatonCegarLoop]: Abstraction has 200 states and 253 transitions. [2022-07-14 15:57:04,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states and 253 transitions. [2022-07-14 15:57:04,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2022-07-14 15:57:04,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 200 states have (on average 1.265) internal successors, (253), 199 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:57:04,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 253 transitions. [2022-07-14 15:57:04,657 INFO L392 hiAutomatonCegarLoop]: Abstraction has 200 states and 253 transitions. [2022-07-14 15:57:04,657 INFO L374 stractBuchiCegarLoop]: Abstraction has 200 states and 253 transitions. [2022-07-14 15:57:04,657 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 15:57:04,657 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 200 states and 253 transitions. [2022-07-14 15:57:04,658 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 140 [2022-07-14 15:57:04,658 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:04,659 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:04,660 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:04,660 INFO L180 hiAutomatonCegarLoop]: 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] [2022-07-14 15:57:04,660 INFO L752 eck$LassoCheckResult]: Stem: 830#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 753#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 754#L176 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 758#L169 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 784#L184 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 773#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 774#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 824#L786-2 [2022-07-14 15:57:04,661 INFO L754 eck$LassoCheckResult]: Loop: 824#L786-2 assume !false; 867#L787 assume test_~splverifierCounter~0#1 < 4; 866#L788 test_~tmp~8#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 864#L796 assume !(0 != test_~tmp~8#1); 777#L796-2 test_~tmp___0~2#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 778#L806 assume !(0 != test_~tmp___0~2#1); 731#L806-2 test_~tmp___2~0#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 798#L816 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 691#L772 assume { :end_inline_startSystem } true; 692#L824-2 assume { :begin_inline_timeShift } true; 817#L597 assume !(0 != ~pumpRunning~0); 786#L597-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 741#L655 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 725#L629-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#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~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 710#L936-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 711#L941-1 isHighWaterLevel_#t~ret42#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret42#1;havoc isHighWaterLevel_#t~ret42#1; 785#L757-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 679#L757-5 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 680#L763-1 processEnvironment__wrappee__highWaterSensor_#t~ret31#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret31#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1; 720#L633-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 722#L621-2 assume { :end_inline_processEnvironment__wrappee__base } true; 734#L629-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 807#L655-1 assume { :end_inline_processEnvironment } true; 874#L604-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret6#1, __utac_acc__Specification1_spec__1_#t~ret7#1, __utac_acc__Specification1_spec__1_~tmp~1#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~1#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 873#L896-1 __utac_acc__Specification1_spec__1_#t~ret6#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~1#1 := __utac_acc__Specification1_spec__1_#t~ret6#1;havoc __utac_acc__Specification1_spec__1_#t~ret6#1; 871#L200 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1#1); 869#L200-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 868#L614 assume { :end_inline_timeShift } true; 824#L786-2 [2022-07-14 15:57:04,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:04,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-14 15:57:04,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:04,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297452691] [2022-07-14 15:57:04,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:04,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:04,688 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:04,713 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:04,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:04,713 INFO L85 PathProgramCache]: Analyzing trace with hash 2093393760, now seen corresponding path program 1 times [2022-07-14 15:57:04,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:04,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465834605] [2022-07-14 15:57:04,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:04,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:04,724 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:04,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:04,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:04,739 INFO L85 PathProgramCache]: Analyzing trace with hash 842411812, now seen corresponding path program 1 times [2022-07-14 15:57:04,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:04,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489830790] [2022-07-14 15:57:04,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:04,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:04,752 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:04,776 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:07,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 03:57:07 BoogieIcfgContainer [2022-07-14 15:57:07,266 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 15:57:07,266 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 15:57:07,266 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 15:57:07,267 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 15:57:07,267 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:03" (3/4) ... [2022-07-14 15:57:07,268 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 15:57:07,342 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 15:57:07,342 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 15:57:07,342 INFO L158 Benchmark]: Toolchain (without parser) took 4471.11ms. Allocated memory was 134.2MB in the beginning and 186.6MB in the end (delta: 52.4MB). Free memory was 98.5MB in the beginning and 97.6MB in the end (delta: 940.8kB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. [2022-07-14 15:57:07,343 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 77.6MB. Free memory is still 36.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:57:07,343 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.21ms. Allocated memory is still 134.2MB. Free memory was 98.2MB in the beginning and 99.7MB in the end (delta: -1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 15:57:07,345 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.35ms. Allocated memory is still 134.2MB. Free memory was 99.7MB in the beginning and 96.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 15:57:07,346 INFO L158 Benchmark]: Boogie Preprocessor took 37.17ms. Allocated memory is still 134.2MB. Free memory was 96.3MB in the beginning and 94.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:57:07,346 INFO L158 Benchmark]: RCFGBuilder took 456.76ms. Allocated memory is still 134.2MB. Free memory was 94.2MB in the beginning and 72.5MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-07-14 15:57:07,346 INFO L158 Benchmark]: BuchiAutomizer took 3481.21ms. Allocated memory was 134.2MB in the beginning and 186.6MB in the end (delta: 52.4MB). Free memory was 72.5MB in the beginning and 100.7MB in the end (delta: -28.2MB). Peak memory consumption was 78.1MB. Max. memory is 16.1GB. [2022-07-14 15:57:07,347 INFO L158 Benchmark]: Witness Printer took 75.55ms. Allocated memory is still 186.6MB. Free memory was 100.7MB in the beginning and 97.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 15:57:07,350 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 77.6MB. Free memory is still 36.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.21ms. Allocated memory is still 134.2MB. Free memory was 98.2MB in the beginning and 99.7MB in the end (delta: -1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.35ms. Allocated memory is still 134.2MB. Free memory was 99.7MB in the beginning and 96.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.17ms. Allocated memory is still 134.2MB. Free memory was 96.3MB in the beginning and 94.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 456.76ms. Allocated memory is still 134.2MB. Free memory was 94.2MB in the beginning and 72.5MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 3481.21ms. Allocated memory was 134.2MB in the beginning and 186.6MB in the end (delta: 52.4MB). Free memory was 72.5MB in the beginning and 100.7MB in the end (delta: -28.2MB). Peak memory consumption was 78.1MB. Max. memory is 16.1GB. * Witness Printer took 75.55ms. Allocated memory is still 186.6MB. Free memory was 100.7MB in the beginning and 97.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 200 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 901 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 901 mSDsluCounter, 486 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 91 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 395 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 786]: 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, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30e0cd7=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@564cbc44=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c1cebd2=0, methaneLevelCritical=0, tmp=0, retValue_acc=0, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45751f96=0, retValue_acc=1, \result=1, tmp=1, \result=1, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1befbf3a=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6909fbaf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e598f1a=0, cleanupTimeShifts=4, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6994b465=0, head=0, tmp___1=0, tmp=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15f5ddf6=0, tmp=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e1fff31=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 786]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L387] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L853] int waterLevel = 1; [L854] int methaneLevelCritical = 0; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L777] int splverifierCounter ; [L778] int tmp ; [L779] int tmp___0 ; [L780] int tmp___1 ; [L781] int tmp___2 ; [L784] splverifierCounter = 0 Loop: [L786] COND TRUE 1 [L788] COND TRUE splverifierCounter < 4 [L794] tmp = __VERIFIER_nondet_int() [L796] COND FALSE !(\read(tmp)) [L804] tmp___0 = __VERIFIER_nondet_int() [L806] COND FALSE !(\read(tmp___0)) [L814] tmp___2 = __VERIFIER_nondet_int() [L816] COND TRUE \read(tmp___2) [L818] CALL startSystem() [L771] systemActive = 1 [L818] RET startSystem() [L831] CALL timeShift() [L597] COND FALSE !(\read(pumpRunning)) [L604] COND TRUE \read(systemActive) [L606] CALL processEnvironment() [L652] int tmp ; [L655] COND FALSE !(\read(pumpRunning)) [L670] CALL processEnvironment__wrappee__highWaterSensor() [L626] int tmp ; [L629] COND TRUE ! pumpRunning [L631] CALL, EXPR isHighWaterLevel() [L749] int retValue_acc ; [L750] int tmp ; [L751] int tmp___0 ; [L755] CALL, EXPR isHighWaterSensorDry() [L933] int retValue_acc ; [L936] COND TRUE waterLevel < 2 [L937] retValue_acc = 1 [L938] return (retValue_acc); [L755] RET, EXPR isHighWaterSensorDry() [L755] tmp = isHighWaterSensorDry() [L757] COND TRUE \read(tmp) [L758] tmp___0 = 0 [L762] retValue_acc = tmp___0 [L763] return (retValue_acc); [L631] RET, EXPR isHighWaterLevel() [L631] tmp = isHighWaterLevel() [L633] COND FALSE !(\read(tmp)) [L639] FCALL processEnvironment__wrappee__base() [L670] RET processEnvironment__wrappee__highWaterSensor() [L606] RET processEnvironment() [L612] CALL __utac_acc__Specification1_spec__1() [L193] int tmp ; [L194] int tmp___0 ; [L198] CALL, EXPR isMethaneLevelCritical() [L892] int retValue_acc ; [L895] retValue_acc = methaneLevelCritical [L896] return (retValue_acc); [L198] RET, EXPR isMethaneLevelCritical() [L198] tmp = isMethaneLevelCritical() [L200] COND FALSE !(\read(tmp)) [L612] RET __utac_acc__Specification1_spec__1() [L831] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 15:57:07,415 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)