./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product56.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_spec3_product56.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 c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 15:58:39,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:58:39,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:58:39,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:58:39,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:58:39,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:58:39,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:58:39,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:58:39,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:58:39,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:58:39,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:58:39,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:58:39,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:58:39,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:58:39,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:58:39,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:58:39,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:58:39,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:58:39,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:58:39,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:58:39,317 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:58:39,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:58:39,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:58:39,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:58:39,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:58:39,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:58:39,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:58:39,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:58:39,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:58:39,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:58:39,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:58:39,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:58:39,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:58:39,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:58:39,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:58:39,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:58:39,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:58:39,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:58:39,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:58:39,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:58:39,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:58:39,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:58:39,331 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 15:58:39,353 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:58:39,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:58:39,354 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:58:39,354 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:58:39,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:58:39,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:58:39,355 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:58:39,355 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:58:39,355 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:58:39,356 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:58:39,356 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:58:39,356 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:58:39,356 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:58:39,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:58:39,357 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 15:58:39,357 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:58:39,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:58:39,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 15:58:39,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:58:39,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:58:39,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:58:39,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:58:39,359 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 15:58:39,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:58:39,359 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:58:39,359 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:58:39,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:58:39,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:58:39,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:58:39,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:58:39,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:58:39,361 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:58:39,361 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f [2022-07-14 15:58:39,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:58:39,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:58:39,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:58:39,561 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:58:39,562 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:58:39,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2022-07-14 15:58:39,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42ac955c5/f18918dfd27f4e2e8ad44dd139b4e390/FLAG47efb2cb7 [2022-07-14 15:58:40,016 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:58:40,017 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2022-07-14 15:58:40,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42ac955c5/f18918dfd27f4e2e8ad44dd139b4e390/FLAG47efb2cb7 [2022-07-14 15:58:40,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42ac955c5/f18918dfd27f4e2e8ad44dd139b4e390 [2022-07-14 15:58:40,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:58:40,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:58:40,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:58:40,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:58:40,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:58:40,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:58:40" (1/1) ... [2022-07-14 15:58:40,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44184b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:40, skipping insertion in model container [2022-07-14 15:58:40,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:58:40" (1/1) ... [2022-07-14 15:58:40,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:58:40,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:58:40,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[19275,19288] [2022-07-14 15:58:40,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:58:40,308 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:58:40,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[19275,19288] [2022-07-14 15:58:40,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:58:40,380 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:58:40,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:40 WrapperNode [2022-07-14 15:58:40,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:58:40,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:58:40,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:58:40,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:58:40,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:40" (1/1) ... [2022-07-14 15:58:40,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:40" (1/1) ... [2022-07-14 15:58:40,435 INFO L137 Inliner]: procedures = 58, calls = 162, calls flagged for inlining = 59, calls inlined = 143, statements flattened = 1044 [2022-07-14 15:58:40,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:58:40,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:58:40,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:58:40,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:58:40,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:40" (1/1) ... [2022-07-14 15:58:40,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:40" (1/1) ... [2022-07-14 15:58:40,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:40" (1/1) ... [2022-07-14 15:58:40,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:40" (1/1) ... [2022-07-14 15:58:40,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:40" (1/1) ... [2022-07-14 15:58:40,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:40" (1/1) ... [2022-07-14 15:58:40,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:40" (1/1) ... [2022-07-14 15:58:40,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:58:40,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:58:40,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:58:40,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:58:40,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:40" (1/1) ... [2022-07-14 15:58:40,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:58:40,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:58:40,505 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 15:58:40,506 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 15:58:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 15:58:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 15:58:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:58:40,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:58:40,575 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:58:40,576 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:58:41,067 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:58:41,080 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:58:41,080 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 15:58:41,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:58:41 BoogieIcfgContainer [2022-07-14 15:58:41,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:58:41,084 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:58:41,085 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:58:41,087 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:58:41,087 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:58:41,088 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:58:40" (1/3) ... [2022-07-14 15:58:41,088 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c8a831c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:58:41, skipping insertion in model container [2022-07-14 15:58:41,088 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:58:41,088 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:40" (2/3) ... [2022-07-14 15:58:41,089 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c8a831c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:58:41, skipping insertion in model container [2022-07-14 15:58:41,089 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:58:41,089 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:58:41" (3/3) ... [2022-07-14 15:58:41,090 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2022-07-14 15:58:41,143 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:58:41,143 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:58:41,143 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:58:41,143 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:58:41,144 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:58:41,144 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:58:41,144 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:58:41,144 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:58:41,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 281 states, 280 states have (on average 1.3714285714285714) internal successors, (384), 280 states have internal predecessors, (384), 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 15:58:41,171 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 185 [2022-07-14 15:58:41,172 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:41,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:41,178 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:41,178 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 15:58:41,178 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:58:41,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 281 states, 280 states have (on average 1.3714285714285714) internal successors, (384), 280 states have internal predecessors, (384), 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 15:58:41,188 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 185 [2022-07-14 15:58:41,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:41,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:41,189 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:41,190 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 15:58:41,193 INFO L752 eck$LassoCheckResult]: Stem: 260#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 184#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; 150#L542true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 230#L535true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 138#L550true 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; 58#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 250#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 198#L960-2true [2022-07-14 15:58:41,193 INFO L754 eck$LassoCheckResult]: Loop: 198#L960-2true assume !false; 177#L961true assume test_~splverifierCounter~0#1 < 4; 22#L962true test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 18#L970true assume !(0 != test_~tmp~10#1); 201#L970-2true test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 234#L980true assume !(0 != test_~tmp___0~3#1); 113#L980-2true test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 93#L990true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet54#1;havoc test_#t~nondet54#1; 213#L998true assume !(0 != test_~tmp___1~1#1); 54#L998-2true assume { :begin_inline_timeShift } true; 187#L711true assume !(0 != ~pumpRunning~0); 69#L711-2true assume !(0 != ~systemActive~0); 277#L718-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 132#L640-1true __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 281#L568true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 127#L574-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 67#L728true assume { :end_inline_timeShift } true; 198#L960-2true [2022-07-14 15:58:41,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:41,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-14 15:58:41,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:41,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083868305] [2022-07-14 15:58:41,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:41,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:41,291 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:41,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:41,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:41,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1677007263, now seen corresponding path program 1 times [2022-07-14 15:58:41,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:41,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420619023] [2022-07-14 15:58:41,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:41,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:41,363 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:41,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:41,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:41,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1686278429, now seen corresponding path program 1 times [2022-07-14 15:58:41,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:41,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611902575] [2022-07-14 15:58:41,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:41,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:58:41,467 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 15:58:41,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:58:41,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611902575] [2022-07-14 15:58:41,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611902575] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:58:41,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:58:41,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 15:58:41,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404581712] [2022-07-14 15:58:41,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:58:41,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:58:41,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 15:58:41,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 15:58:41,614 INFO L87 Difference]: Start difference. First operand has 281 states, 280 states have (on average 1.3714285714285714) internal successors, (384), 280 states have internal predecessors, (384), 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 15:58:41,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:58:41,752 INFO L93 Difference]: Finished difference Result 888 states and 1187 transitions. [2022-07-14 15:58:41,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 15:58:41,758 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 888 states and 1187 transitions. [2022-07-14 15:58:41,774 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 584 [2022-07-14 15:58:41,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 888 states to 848 states and 1147 transitions. [2022-07-14 15:58:41,785 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 848 [2022-07-14 15:58:41,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 848 [2022-07-14 15:58:41,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 848 states and 1147 transitions. [2022-07-14 15:58:41,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:58:41,792 INFO L369 hiAutomatonCegarLoop]: Abstraction has 848 states and 1147 transitions. [2022-07-14 15:58:41,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states and 1147 transitions. [2022-07-14 15:58:41,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 326. [2022-07-14 15:58:41,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 326 states have (on average 1.3496932515337423) internal successors, (440), 325 states have internal predecessors, (440), 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 15:58:41,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 440 transitions. [2022-07-14 15:58:41,839 INFO L392 hiAutomatonCegarLoop]: Abstraction has 326 states and 440 transitions. [2022-07-14 15:58:41,839 INFO L374 stractBuchiCegarLoop]: Abstraction has 326 states and 440 transitions. [2022-07-14 15:58:41,839 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:58:41,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 326 states and 440 transitions. [2022-07-14 15:58:41,840 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 225 [2022-07-14 15:58:41,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:41,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:41,841 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:41,842 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] [2022-07-14 15:58:41,842 INFO L752 eck$LassoCheckResult]: Stem: 1453#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1425#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; 1404#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1405#L535 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1395#L550 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; 1293#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1294#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1308#L960-2 [2022-07-14 15:58:41,842 INFO L754 eck$LassoCheckResult]: Loop: 1308#L960-2 assume !false; 1420#L961 assume test_~splverifierCounter~0#1 < 4; 1230#L962 test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1220#L970 assume !(0 != test_~tmp~10#1); 1200#L970-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 1434#L980 assume !(0 != test_~tmp___0~3#1); 1299#L980-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 1346#L990 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet54#1;havoc test_#t~nondet54#1; 1347#L998 assume !(0 != test_~tmp___1~1#1); 1287#L998-2 assume { :begin_inline_timeShift } true; 1288#L711 assume !(0 != ~pumpRunning~0); 1311#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1312#L795 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret40#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1244#L640 isMethaneAlarm_#t~ret40#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret40#1;havoc isMethaneAlarm_#t~ret40#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; 1245#L839 processEnvironment_#t~ret39#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~7#1 := processEnvironment_#t~ret39#1;havoc processEnvironment_#t~ret39#1; 1246#L799 assume 0 != processEnvironment_~tmp~7#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1371#L829-1 assume { :end_inline_deactivatePump } true; 1215#L795-1 assume { :end_inline_processEnvironment } true; 1216#L718-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1388#L640-1 __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 1389#L568 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 1277#L574-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1307#L728 assume { :end_inline_timeShift } true; 1308#L960-2 [2022-07-14 15:58:41,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:41,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-14 15:58:41,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:41,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131888485] [2022-07-14 15:58:41,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:41,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:41,866 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:41,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:41,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:41,890 INFO L85 PathProgramCache]: Analyzing trace with hash 198530698, now seen corresponding path program 1 times [2022-07-14 15:58:41,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:41,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052969443] [2022-07-14 15:58:41,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:41,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:58:41,900 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 15:58:41,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:58:41,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052969443] [2022-07-14 15:58:41,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052969443] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:58:41,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:58:41,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 15:58:41,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694601874] [2022-07-14 15:58:41,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:58:41,901 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 15:58:41,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:58:41,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 15:58:41,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 15:58:41,901 INFO L87 Difference]: Start difference. First operand 326 states and 440 transitions. cyclomatic complexity: 117 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 15:58:41,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:58:41,965 INFO L93 Difference]: Finished difference Result 338 states and 432 transitions. [2022-07-14 15:58:41,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 15:58:41,967 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 338 states and 432 transitions. [2022-07-14 15:58:41,968 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2022-07-14 15:58:41,970 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 338 states to 338 states and 432 transitions. [2022-07-14 15:58:41,970 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 338 [2022-07-14 15:58:41,970 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 338 [2022-07-14 15:58:41,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 338 states and 432 transitions. [2022-07-14 15:58:41,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:58:41,971 INFO L369 hiAutomatonCegarLoop]: Abstraction has 338 states and 432 transitions. [2022-07-14 15:58:41,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states and 432 transitions. [2022-07-14 15:58:41,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2022-07-14 15:58:41,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 338 states have (on average 1.2781065088757397) internal successors, (432), 337 states have internal predecessors, (432), 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 15:58:41,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 432 transitions. [2022-07-14 15:58:41,979 INFO L392 hiAutomatonCegarLoop]: Abstraction has 338 states and 432 transitions. [2022-07-14 15:58:41,979 INFO L374 stractBuchiCegarLoop]: Abstraction has 338 states and 432 transitions. [2022-07-14 15:58:41,979 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 15:58:41,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 338 states and 432 transitions. [2022-07-14 15:58:41,980 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2022-07-14 15:58:41,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:41,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:41,982 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:41,982 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, 1, 1] [2022-07-14 15:58:41,982 INFO L752 eck$LassoCheckResult]: Stem: 2083#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2056#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; 2031#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2032#L535 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 2020#L550 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; 1943#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1944#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2080#L960-2 [2022-07-14 15:58:41,986 INFO L754 eck$LassoCheckResult]: Loop: 2080#L960-2 assume !false; 2163#L961 assume test_~splverifierCounter~0#1 < 4; 2162#L962 test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 2160#L970 assume !(0 != test_~tmp~10#1); 2158#L970-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 2156#L980 assume !(0 != test_~tmp___0~3#1); 2154#L980-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 2153#L990 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1985#L946 assume { :end_inline_startSystem } true; 1932#L998-2 assume { :begin_inline_timeShift } true; 1933#L711 assume !(0 != ~pumpRunning~0); 1956#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1957#L795 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret38#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; 2027#L769-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret37#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 2005#L743-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1991#L680-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1881#L685-3 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 1882#L897-9 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2081#L897-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 2052#L903-3 processEnvironment__wrappee__highWaterSensor_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret37#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret37#1; 2042#L747-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1876#L735-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1877#L743-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1915#L769-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1874#L795-1 assume { :end_inline_processEnvironment } true; 1875#L718-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 2172#L640-1 __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 2168#L568 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 2166#L574-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2165#L728 assume { :end_inline_timeShift } true; 2080#L960-2 [2022-07-14 15:58:41,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:41,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-14 15:58:41,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:41,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488852665] [2022-07-14 15:58:41,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:41,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:42,006 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:42,013 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:42,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:42,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1170403436, now seen corresponding path program 1 times [2022-07-14 15:58:42,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:42,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324579330] [2022-07-14 15:58:42,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:42,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:42,019 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:42,025 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:42,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:42,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1567594288, now seen corresponding path program 1 times [2022-07-14 15:58:42,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:42,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685106603] [2022-07-14 15:58:42,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:42,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:58:42,074 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 15:58:42,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:58:42,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685106603] [2022-07-14 15:58:42,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685106603] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:58:42,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:58:42,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 15:58:42,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898936116] [2022-07-14 15:58:42,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:58:42,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:58:42,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 15:58:42,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 15:58:42,238 INFO L87 Difference]: Start difference. First operand 338 states and 432 transitions. cyclomatic complexity: 97 Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 15:58:42,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:58:42,317 INFO L93 Difference]: Finished difference Result 1167 states and 1479 transitions. [2022-07-14 15:58:42,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 15:58:42,319 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1167 states and 1479 transitions. [2022-07-14 15:58:42,324 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 871 [2022-07-14 15:58:42,330 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1167 states to 1167 states and 1479 transitions. [2022-07-14 15:58:42,330 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1167 [2022-07-14 15:58:42,331 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1167 [2022-07-14 15:58:42,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1167 states and 1479 transitions. [2022-07-14 15:58:42,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:58:42,332 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1167 states and 1479 transitions. [2022-07-14 15:58:42,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states and 1479 transitions. [2022-07-14 15:58:42,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 669. [2022-07-14 15:58:42,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 669 states have (on average 1.2630792227204783) internal successors, (845), 668 states have internal predecessors, (845), 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 15:58:42,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 845 transitions. [2022-07-14 15:58:42,342 INFO L392 hiAutomatonCegarLoop]: Abstraction has 669 states and 845 transitions. [2022-07-14 15:58:42,342 INFO L374 stractBuchiCegarLoop]: Abstraction has 669 states and 845 transitions. [2022-07-14 15:58:42,342 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-14 15:58:42,342 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 669 states and 845 transitions. [2022-07-14 15:58:42,344 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 478 [2022-07-14 15:58:42,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:42,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:42,344 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:42,344 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, 1, 1, 1, 1] [2022-07-14 15:58:42,345 INFO L752 eck$LassoCheckResult]: Stem: 3627#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 3590#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; 3561#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3562#L535 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 3551#L550 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; 3464#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 3465#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3622#L960-2 [2022-07-14 15:58:42,345 INFO L754 eck$LassoCheckResult]: Loop: 3622#L960-2 assume !false; 3890#L961 assume test_~splverifierCounter~0#1 < 4; 3891#L962 test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 4029#L970 assume !(0 != test_~tmp~10#1); 4027#L970-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 4026#L980 assume !(0 != test_~tmp___0~3#1); 4023#L980-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 4021#L990 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3956#L946 assume { :end_inline_startSystem } true; 3609#L998-2 assume { :begin_inline_timeShift } true; 4014#L711 assume !(0 != ~pumpRunning~0); 3965#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 3902#L795 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret38#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; 3954#L769-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret37#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 4006#L743-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 3988#L680-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 3980#L685-3 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 3972#L897-9 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3970#L897-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 3586#L903-3 processEnvironment__wrappee__highWaterSensor_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret37#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret37#1; 3575#L747-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3399#L735-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3400#L743-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3438#L769-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 3397#L795-1 assume { :end_inline_processEnvironment } true; 3398#L718-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 3899#L640-1 __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 3898#L568 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 3897#L672 __utac_acc__Specification3_spec__1_#t~ret30#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret30#1;havoc __utac_acc__Specification3_spec__1_#t~ret30#1; 3895#L574 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 3893#L574-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3892#L728 assume { :end_inline_timeShift } true; 3622#L960-2 [2022-07-14 15:58:42,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:42,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-07-14 15:58:42,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:42,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497004936] [2022-07-14 15:58:42,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:42,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:42,351 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:42,358 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:42,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:42,358 INFO L85 PathProgramCache]: Analyzing trace with hash -522471841, now seen corresponding path program 1 times [2022-07-14 15:58:42,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:42,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448259212] [2022-07-14 15:58:42,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:42,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:42,364 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:42,369 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:42,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:42,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1074152413, now seen corresponding path program 1 times [2022-07-14 15:58:42,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:42,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212767715] [2022-07-14 15:58:42,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:42,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:42,382 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:42,402 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:44,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 03:58:44 BoogieIcfgContainer [2022-07-14 15:58:44,589 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 15:58:44,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 15:58:44,590 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 15:58:44,590 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 15:58:44,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:58:41" (3/4) ... [2022-07-14 15:58:44,593 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 15:58:44,638 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 15:58:44,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 15:58:44,639 INFO L158 Benchmark]: Toolchain (without parser) took 4600.29ms. Allocated memory was 113.2MB in the beginning and 178.3MB in the end (delta: 65.0MB). Free memory was 83.2MB in the beginning and 123.9MB in the end (delta: -40.8MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-07-14 15:58:44,639 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 113.2MB. Free memory was 67.9MB in the beginning and 67.8MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:58:44,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.48ms. Allocated memory is still 113.2MB. Free memory was 82.9MB in the beginning and 79.0MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 15:58:44,640 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.14ms. Allocated memory is still 113.2MB. Free memory was 79.0MB in the beginning and 74.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 15:58:44,640 INFO L158 Benchmark]: Boogie Preprocessor took 41.81ms. Allocated memory is still 113.2MB. Free memory was 74.5MB in the beginning and 71.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:58:44,640 INFO L158 Benchmark]: RCFGBuilder took 605.39ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 71.2MB in the beginning and 93.9MB in the end (delta: -22.7MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2022-07-14 15:58:44,641 INFO L158 Benchmark]: BuchiAutomizer took 3504.51ms. Allocated memory was 136.3MB in the beginning and 178.3MB in the end (delta: 41.9MB). Free memory was 93.9MB in the beginning and 127.1MB in the end (delta: -33.2MB). Peak memory consumption was 86.6MB. Max. memory is 16.1GB. [2022-07-14 15:58:44,641 INFO L158 Benchmark]: Witness Printer took 48.90ms. Allocated memory is still 178.3MB. Free memory was 127.1MB in the beginning and 123.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:58:44,642 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 113.2MB. Free memory was 67.9MB in the beginning and 67.8MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.48ms. Allocated memory is still 113.2MB. Free memory was 82.9MB in the beginning and 79.0MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.14ms. Allocated memory is still 113.2MB. Free memory was 79.0MB in the beginning and 74.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.81ms. Allocated memory is still 113.2MB. Free memory was 74.5MB in the beginning and 71.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 605.39ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 71.2MB in the beginning and 93.9MB in the end (delta: -22.7MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 3504.51ms. Allocated memory was 136.3MB in the beginning and 178.3MB in the end (delta: 41.9MB). Free memory was 93.9MB in the beginning and 127.1MB in the end (delta: -33.2MB). Peak memory consumption was 86.6MB. Max. memory is 16.1GB. * Witness Printer took 48.90ms. Allocated memory is still 178.3MB. Free memory was 127.1MB in the beginning and 123.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 669 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 1020 StatesRemovedByMinimization, 2 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, 3131 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3131 mSDsluCounter, 4730 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3638 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 169 IncrementalHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 1092 mSDtfsCounter, 169 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 960]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c281a48=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35489558=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78140382=29, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@569b48cf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36539726=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2302e59e=0, retValue_acc=1, tmp=0, methaneLevelCritical=0, tmp___0=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@df49bc9=0, \result=0, retValue_acc=1, tmp=0, retValue_acc=0, tmp=1, \result=1, \result=1, retValue_acc=1, tmp___1=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78077405=0, cleanupTimeShifts=4, tmp=1, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@457bf282=0, tmp=0, tmp___0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3782a3ef=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17b5c743=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50feff67=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 960]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int waterLevel = 1; [L598] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] 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() [L951] int splverifierCounter ; [L952] int tmp ; [L953] int tmp___0 ; [L954] int tmp___1 ; [L955] int tmp___2 ; [L958] splverifierCounter = 0 Loop: [L960] COND TRUE 1 [L962] COND TRUE splverifierCounter < 4 [L968] tmp = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp)) [L978] tmp___0 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___0)) [L988] tmp___2 = __VERIFIER_nondet_int() [L990] COND TRUE \read(tmp___2) [L992] CALL startSystem() [L945] systemActive = 1 [L992] RET startSystem() [L1007] CALL timeShift() [L711] COND FALSE !(\read(pumpRunning)) [L718] COND TRUE \read(systemActive) [L720] CALL processEnvironment() [L792] int tmp ; [L795] COND FALSE !(\read(pumpRunning)) [L810] CALL processEnvironment__wrappee__lowWaterSensor() [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L784] CALL processEnvironment__wrappee__highWaterSensor() [L740] int tmp ; [L743] COND TRUE ! pumpRunning [L745] CALL, EXPR isHighWaterLevel() [L889] int retValue_acc ; [L890] int tmp ; [L891] int tmp___0 ; [L895] CALL, EXPR isHighWaterSensorDry() [L677] int retValue_acc ; [L680] COND TRUE waterLevel < 2 [L681] retValue_acc = 1 [L682] return (retValue_acc); [L895] RET, EXPR isHighWaterSensorDry() [L895] tmp = isHighWaterSensorDry() [L897] COND TRUE \read(tmp) [L898] tmp___0 = 0 [L902] retValue_acc = tmp___0 [L903] return (retValue_acc); [L745] RET, EXPR isHighWaterLevel() [L745] tmp = isHighWaterLevel() [L747] COND FALSE !(\read(tmp)) [L753] FCALL processEnvironment__wrappee__base() [L784] RET processEnvironment__wrappee__highWaterSensor() [L810] RET processEnvironment__wrappee__lowWaterSensor() [L720] RET processEnvironment() [L726] CALL __utac_acc__Specification3_spec__1() [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; [L566] CALL, EXPR isMethaneLevelCritical() [L636] int retValue_acc ; [L639] retValue_acc = methaneLevelCritical [L640] return (retValue_acc); [L566] RET, EXPR isMethaneLevelCritical() [L566] tmp = isMethaneLevelCritical() [L568] COND FALSE !(\read(tmp)) [L572] CALL, EXPR getWaterLevel() [L668] int retValue_acc ; [L671] retValue_acc = waterLevel [L672] return (retValue_acc); [L572] RET, EXPR getWaterLevel() [L572] tmp___0 = getWaterLevel() [L574] COND FALSE !(tmp___0 == 2) [L726] RET __utac_acc__Specification3_spec__1() [L1007] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 15:58:44,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)