./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product40.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 e58738f03c291d912b42eb65343509a99f93ac40ab295d49133dc12600f622b8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:26,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:26,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:26,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:26,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:26,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:26,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:26,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:26,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:26,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:26,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:26,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:26,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:26,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:26,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:26,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:26,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:26,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:26,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:26,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:26,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:26,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:26,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:26,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:26,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:26,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:26,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:26,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:26,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:26,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:26,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:26,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:26,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:26,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:26,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:26,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:26,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:26,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:26,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:26,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:26,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:26,101 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:26,129 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:26,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:26,130 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:26,130 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:26,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:26,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:26,131 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:26,131 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:26,132 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:26,132 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:26,133 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:26,133 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:26,133 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:26,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:26,133 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:26,133 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:26,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:26,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:26,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:26,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:26,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:26,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:26,134 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:26,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:26,135 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:26,135 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:26,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:26,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:26,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:26,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:26,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:26,138 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:26,138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e58738f03c291d912b42eb65343509a99f93ac40ab295d49133dc12600f622b8 [2022-02-21 04:15:26,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:26,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:26,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:26,363 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:26,363 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:26,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2022-02-21 04:15:26,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1892491b9/ca405f0669f0435087c00cad89dfefad/FLAG4e302d478 [2022-02-21 04:15:26,813 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:26,814 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2022-02-21 04:15:26,825 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1892491b9/ca405f0669f0435087c00cad89dfefad/FLAG4e302d478 [2022-02-21 04:15:26,836 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1892491b9/ca405f0669f0435087c00cad89dfefad [2022-02-21 04:15:26,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:26,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:26,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:26,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:26,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:26,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:26" (1/1) ... [2022-02-21 04:15:26,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3af0596b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:26, skipping insertion in model container [2022-02-21 04:15:26,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:26" (1/1) ... [2022-02-21 04:15:26,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:26,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:27,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c[7390,7403] [2022-02-21 04:15:27,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:27,102 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:27,133 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c[7390,7403] [2022-02-21 04:15:27,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:27,217 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:27,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:27 WrapperNode [2022-02-21 04:15:27,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:27,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:27,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:27,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:27,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:27" (1/1) ... [2022-02-21 04:15:27,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:27" (1/1) ... [2022-02-21 04:15:27,271 INFO L137 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 53, calls inlined = 80, statements flattened = 591 [2022-02-21 04:15:27,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:27,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:27,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:27,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:27,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:27" (1/1) ... [2022-02-21 04:15:27,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:27" (1/1) ... [2022-02-21 04:15:27,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:27" (1/1) ... [2022-02-21 04:15:27,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:27" (1/1) ... [2022-02-21 04:15:27,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:27" (1/1) ... [2022-02-21 04:15:27,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:27" (1/1) ... [2022-02-21 04:15:27,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:27" (1/1) ... [2022-02-21 04:15:27,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:27,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:27,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:27,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:27,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:27" (1/1) ... [2022-02-21 04:15:27,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:27,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:27,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:15:27,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:15:27,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:27,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:27,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:27,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:27,454 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:27,455 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:27,821 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:27,831 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:27,832 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:27,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:27 BoogieIcfgContainer [2022-02-21 04:15:27,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:27,836 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:27,837 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:27,840 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:27,840 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:27,840 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:26" (1/3) ... [2022-02-21 04:15:27,841 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7447f372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:27, skipping insertion in model container [2022-02-21 04:15:27,842 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:27,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:27" (2/3) ... [2022-02-21 04:15:27,842 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7447f372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:27, skipping insertion in model container [2022-02-21 04:15:27,842 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:27,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:27" (3/3) ... [2022-02-21 04:15:27,844 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2022-02-21 04:15:27,888 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:27,889 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:27,889 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:27,889 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:27,889 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:27,889 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:27,889 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:27,890 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:27,912 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 161 states, 160 states have (on average 1.36875) internal successors, (219), 160 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:27,968 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2022-02-21 04:15:27,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:27,968 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:27,972 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:27,972 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:27,972 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:27,974 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 161 states, 160 states have (on average 1.36875) internal successors, (219), 160 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:27,985 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2022-02-21 04:15:27,987 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:27,987 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:27,988 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:27,988 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:27,992 INFO L791 eck$LassoCheckResult]: Stem: 140#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 50#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret22#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 117#L483true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 52#L476true 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; 8#L491true main_#t~ret22#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret22#1;havoc main_#t~ret22#1; 34#L447true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 37#L421true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 121#L276-2true [2022-02-21 04:15:27,998 INFO L793 eck$LassoCheckResult]: Loop: 121#L276-2true assume !false; 152#L277true assume test_~splverifierCounter~0#1 < 4; 161#L278true test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 94#L286true assume !(0 != test_~tmp~3#1); 16#L286-2true test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 67#L296true assume !(0 != test_~tmp___0~1#1); 47#L296-2true test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 153#L306true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 77#L259true assume { :end_inline_startSystem } true; 84#L314-2true assume { :begin_inline_timeShift } true; 20#L69true assume !(0 != ~pumpRunning~0); 118#L69-2true assume !(0 != ~systemActive~0); 137#L76-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret20#1, __utac_acc__Specification1_spec__1_#t~ret21#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 87#L915-1true __utac_acc__Specification1_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret20#1;havoc __utac_acc__Specification1_spec__1_#t~ret20#1; 39#L344true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); 128#L344-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 6#L86true assume { :end_inline_timeShift } true; 121#L276-2true [2022-02-21 04:15:28,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:28,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:28,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:28,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390310752] [2022-02-21 04:15:28,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:28,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:28,164 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:28,215 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:28,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:28,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2145921089, now seen corresponding path program 1 times [2022-02-21 04:15:28,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:28,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318949289] [2022-02-21 04:15:28,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:28,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:28,303 INFO L290 TraceCheckUtils]: 0: Hoare triple {167#true} assume !false; {167#true} is VALID [2022-02-21 04:15:28,303 INFO L290 TraceCheckUtils]: 1: Hoare triple {167#true} assume test_~splverifierCounter~0#1 < 4; {167#true} is VALID [2022-02-21 04:15:28,303 INFO L290 TraceCheckUtils]: 2: Hoare triple {167#true} test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; {167#true} is VALID [2022-02-21 04:15:28,303 INFO L290 TraceCheckUtils]: 3: Hoare triple {167#true} assume !(0 != test_~tmp~3#1); {167#true} is VALID [2022-02-21 04:15:28,304 INFO L290 TraceCheckUtils]: 4: Hoare triple {167#true} test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {167#true} is VALID [2022-02-21 04:15:28,304 INFO L290 TraceCheckUtils]: 5: Hoare triple {167#true} assume !(0 != test_~tmp___0~1#1); {167#true} is VALID [2022-02-21 04:15:28,304 INFO L290 TraceCheckUtils]: 6: Hoare triple {167#true} test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {167#true} is VALID [2022-02-21 04:15:28,305 INFO L290 TraceCheckUtils]: 7: Hoare triple {167#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {169#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:28,306 INFO L290 TraceCheckUtils]: 8: Hoare triple {169#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {169#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:28,307 INFO L290 TraceCheckUtils]: 9: Hoare triple {169#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {169#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:28,307 INFO L290 TraceCheckUtils]: 10: Hoare triple {169#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {169#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:28,308 INFO L290 TraceCheckUtils]: 11: Hoare triple {169#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {168#false} is VALID [2022-02-21 04:15:28,308 INFO L290 TraceCheckUtils]: 12: Hoare triple {168#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret20#1, __utac_acc__Specification1_spec__1_#t~ret21#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; {168#false} is VALID [2022-02-21 04:15:28,308 INFO L290 TraceCheckUtils]: 13: Hoare triple {168#false} __utac_acc__Specification1_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret20#1;havoc __utac_acc__Specification1_spec__1_#t~ret20#1; {168#false} is VALID [2022-02-21 04:15:28,309 INFO L290 TraceCheckUtils]: 14: Hoare triple {168#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); {168#false} is VALID [2022-02-21 04:15:28,309 INFO L290 TraceCheckUtils]: 15: Hoare triple {168#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {168#false} is VALID [2022-02-21 04:15:28,309 INFO L290 TraceCheckUtils]: 16: Hoare triple {168#false} assume { :end_inline_timeShift } true; {168#false} is VALID [2022-02-21 04:15:28,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:15:28,310 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:28,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318949289] [2022-02-21 04:15:28,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318949289] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:28,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:28,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:28,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565007766] [2022-02-21 04:15:28,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:28,316 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:28,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:28,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:28,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:28,341 INFO L87 Difference]: Start difference. First operand has 161 states, 160 states have (on average 1.36875) internal successors, (219), 160 states have internal predecessors, (219), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:28,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:28,630 INFO L93 Difference]: Finished difference Result 307 states and 405 transitions. [2022-02-21 04:15:28,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:28,631 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:28,644 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:28,649 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 307 states and 405 transitions. [2022-02-21 04:15:28,662 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 200 [2022-02-21 04:15:28,671 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 307 states to 287 states and 384 transitions. [2022-02-21 04:15:28,673 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 287 [2022-02-21 04:15:28,673 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 287 [2022-02-21 04:15:28,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 287 states and 384 transitions. [2022-02-21 04:15:28,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:28,675 INFO L681 BuchiCegarLoop]: Abstraction has 287 states and 384 transitions. [2022-02-21 04:15:28,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states and 384 transitions. [2022-02-21 04:15:28,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 284. [2022-02-21 04:15:28,700 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:28,702 INFO L82 GeneralOperation]: Start isEquivalent. First operand 287 states and 384 transitions. Second operand has 284 states, 284 states have (on average 1.3380281690140845) internal successors, (380), 283 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:28,703 INFO L74 IsIncluded]: Start isIncluded. First operand 287 states and 384 transitions. Second operand has 284 states, 284 states have (on average 1.3380281690140845) internal successors, (380), 283 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:28,704 INFO L87 Difference]: Start difference. First operand 287 states and 384 transitions. Second operand has 284 states, 284 states have (on average 1.3380281690140845) internal successors, (380), 283 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:28,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:28,718 INFO L93 Difference]: Finished difference Result 287 states and 384 transitions. [2022-02-21 04:15:28,718 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 384 transitions. [2022-02-21 04:15:28,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:28,720 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:28,721 INFO L74 IsIncluded]: Start isIncluded. First operand has 284 states, 284 states have (on average 1.3380281690140845) internal successors, (380), 283 states have internal predecessors, (380), 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 287 states and 384 transitions. [2022-02-21 04:15:28,722 INFO L87 Difference]: Start difference. First operand has 284 states, 284 states have (on average 1.3380281690140845) internal successors, (380), 283 states have internal predecessors, (380), 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 287 states and 384 transitions. [2022-02-21 04:15:28,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:28,729 INFO L93 Difference]: Finished difference Result 287 states and 384 transitions. [2022-02-21 04:15:28,729 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 384 transitions. [2022-02-21 04:15:28,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:28,730 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:28,730 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:28,731 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:28,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 284 states have (on average 1.3380281690140845) internal successors, (380), 283 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:28,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 380 transitions. [2022-02-21 04:15:28,739 INFO L704 BuchiCegarLoop]: Abstraction has 284 states and 380 transitions. [2022-02-21 04:15:28,739 INFO L587 BuchiCegarLoop]: Abstraction has 284 states and 380 transitions. [2022-02-21 04:15:28,740 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:28,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 284 states and 380 transitions. [2022-02-21 04:15:28,741 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 197 [2022-02-21 04:15:28,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:28,741 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:28,742 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:28,742 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:28,742 INFO L791 eck$LassoCheckResult]: Stem: 628#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 556#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret22#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 557#L483 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 559#L476 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; 485#L491 main_#t~ret22#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret22#1;havoc main_#t~ret22#1; 486#L447 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 532#L421 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 482#L276-2 [2022-02-21 04:15:28,742 INFO L793 eck$LassoCheckResult]: Loop: 482#L276-2 assume !false; 619#L277 assume test_~splverifierCounter~0#1 < 4; 658#L278 test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 656#L286 assume !(0 != test_~tmp~3#1); 654#L286-2 test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 652#L296 assume !(0 != test_~tmp___0~1#1); 650#L296-2 test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 633#L306 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 585#L259 assume { :end_inline_startSystem } true; 586#L314-2 assume { :begin_inline_timeShift } true; 508#L69 assume !(0 != ~pumpRunning~0); 509#L69-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 618#L127 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 603#L101-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 604#L93-3 assume { :end_inline_processEnvironment__wrappee__base } true; 588#L101-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 518#L127-1 assume { :end_inline_processEnvironment } true; 607#L76-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret20#1, __utac_acc__Specification1_spec__1_#t~ret21#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 664#L915-1 __utac_acc__Specification1_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret20#1;havoc __utac_acc__Specification1_spec__1_#t~ret20#1; 662#L344 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); 660#L344-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 481#L86 assume { :end_inline_timeShift } true; 482#L276-2 [2022-02-21 04:15:28,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:28,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:28,743 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:28,743 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958910237] [2022-02-21 04:15:28,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:28,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:28,755 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:28,771 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:28,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:28,772 INFO L85 PathProgramCache]: Analyzing trace with hash 716441683, now seen corresponding path program 1 times [2022-02-21 04:15:28,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:28,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119742626] [2022-02-21 04:15:28,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:28,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:28,786 INFO L290 TraceCheckUtils]: 0: Hoare triple {1340#true} assume !false; {1340#true} is VALID [2022-02-21 04:15:28,786 INFO L290 TraceCheckUtils]: 1: Hoare triple {1340#true} assume test_~splverifierCounter~0#1 < 4; {1340#true} is VALID [2022-02-21 04:15:28,787 INFO L290 TraceCheckUtils]: 2: Hoare triple {1340#true} test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; {1340#true} is VALID [2022-02-21 04:15:28,787 INFO L290 TraceCheckUtils]: 3: Hoare triple {1340#true} assume !(0 != test_~tmp~3#1); {1340#true} is VALID [2022-02-21 04:15:28,787 INFO L290 TraceCheckUtils]: 4: Hoare triple {1340#true} test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {1340#true} is VALID [2022-02-21 04:15:28,787 INFO L290 TraceCheckUtils]: 5: Hoare triple {1340#true} assume !(0 != test_~tmp___0~1#1); {1340#true} is VALID [2022-02-21 04:15:28,787 INFO L290 TraceCheckUtils]: 6: Hoare triple {1340#true} test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {1340#true} is VALID [2022-02-21 04:15:28,788 INFO L290 TraceCheckUtils]: 7: Hoare triple {1340#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {1340#true} is VALID [2022-02-21 04:15:28,788 INFO L290 TraceCheckUtils]: 8: Hoare triple {1340#true} assume { :end_inline_startSystem } true; {1340#true} is VALID [2022-02-21 04:15:28,788 INFO L290 TraceCheckUtils]: 9: Hoare triple {1340#true} assume { :begin_inline_timeShift } true; {1340#true} is VALID [2022-02-21 04:15:28,788 INFO L290 TraceCheckUtils]: 10: Hoare triple {1340#true} assume !(0 != ~pumpRunning~0); {1342#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:28,789 INFO L290 TraceCheckUtils]: 11: Hoare triple {1342#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {1342#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:28,789 INFO L290 TraceCheckUtils]: 12: Hoare triple {1342#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {1342#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:28,790 INFO L290 TraceCheckUtils]: 13: Hoare triple {1342#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1341#false} is VALID [2022-02-21 04:15:28,790 INFO L290 TraceCheckUtils]: 14: Hoare triple {1341#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1341#false} is VALID [2022-02-21 04:15:28,790 INFO L290 TraceCheckUtils]: 15: Hoare triple {1341#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1341#false} is VALID [2022-02-21 04:15:28,790 INFO L290 TraceCheckUtils]: 16: Hoare triple {1341#false} assume { :end_inline_processEnvironment } true; {1341#false} is VALID [2022-02-21 04:15:28,790 INFO L290 TraceCheckUtils]: 17: Hoare triple {1341#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret20#1, __utac_acc__Specification1_spec__1_#t~ret21#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; {1341#false} is VALID [2022-02-21 04:15:28,790 INFO L290 TraceCheckUtils]: 18: Hoare triple {1341#false} __utac_acc__Specification1_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret20#1;havoc __utac_acc__Specification1_spec__1_#t~ret20#1; {1341#false} is VALID [2022-02-21 04:15:28,791 INFO L290 TraceCheckUtils]: 19: Hoare triple {1341#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); {1341#false} is VALID [2022-02-21 04:15:28,791 INFO L290 TraceCheckUtils]: 20: Hoare triple {1341#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {1341#false} is VALID [2022-02-21 04:15:28,791 INFO L290 TraceCheckUtils]: 21: Hoare triple {1341#false} assume { :end_inline_timeShift } true; {1341#false} is VALID [2022-02-21 04:15:28,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:15:28,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:28,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119742626] [2022-02-21 04:15:28,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119742626] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:28,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:28,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:28,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040901960] [2022-02-21 04:15:28,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:28,793 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:28,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:28,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:28,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:28,794 INFO L87 Difference]: Start difference. First operand 284 states and 380 transitions. cyclomatic complexity: 99 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:28,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:28,981 INFO L93 Difference]: Finished difference Result 396 states and 509 transitions. [2022-02-21 04:15:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:28,982 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:28,995 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:28,996 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 396 states and 509 transitions. [2022-02-21 04:15:29,005 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 283 [2022-02-21 04:15:29,026 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 396 states to 396 states and 509 transitions. [2022-02-21 04:15:29,026 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 396 [2022-02-21 04:15:29,026 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 396 [2022-02-21 04:15:29,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 396 states and 509 transitions. [2022-02-21 04:15:29,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:29,028 INFO L681 BuchiCegarLoop]: Abstraction has 396 states and 509 transitions. [2022-02-21 04:15:29,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states and 509 transitions. [2022-02-21 04:15:29,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2022-02-21 04:15:29,051 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:29,052 INFO L82 GeneralOperation]: Start isEquivalent. First operand 396 states and 509 transitions. Second operand has 396 states, 396 states have (on average 1.2853535353535352) internal successors, (509), 395 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:29,053 INFO L74 IsIncluded]: Start isIncluded. First operand 396 states and 509 transitions. Second operand has 396 states, 396 states have (on average 1.2853535353535352) internal successors, (509), 395 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:29,053 INFO L87 Difference]: Start difference. First operand 396 states and 509 transitions. Second operand has 396 states, 396 states have (on average 1.2853535353535352) internal successors, (509), 395 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:29,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:29,061 INFO L93 Difference]: Finished difference Result 396 states and 509 transitions. [2022-02-21 04:15:29,062 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 509 transitions. [2022-02-21 04:15:29,062 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:29,062 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:29,063 INFO L74 IsIncluded]: Start isIncluded. First operand has 396 states, 396 states have (on average 1.2853535353535352) internal successors, (509), 395 states have internal predecessors, (509), 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 396 states and 509 transitions. [2022-02-21 04:15:29,064 INFO L87 Difference]: Start difference. First operand has 396 states, 396 states have (on average 1.2853535353535352) internal successors, (509), 395 states have internal predecessors, (509), 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 396 states and 509 transitions. [2022-02-21 04:15:29,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:29,086 INFO L93 Difference]: Finished difference Result 396 states and 509 transitions. [2022-02-21 04:15:29,086 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 509 transitions. [2022-02-21 04:15:29,087 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:29,087 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:29,087 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:29,087 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:29,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 396 states have (on average 1.2853535353535352) internal successors, (509), 395 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:29,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 509 transitions. [2022-02-21 04:15:29,111 INFO L704 BuchiCegarLoop]: Abstraction has 396 states and 509 transitions. [2022-02-21 04:15:29,111 INFO L587 BuchiCegarLoop]: Abstraction has 396 states and 509 transitions. [2022-02-21 04:15:29,111 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:15:29,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 396 states and 509 transitions. [2022-02-21 04:15:29,113 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 283 [2022-02-21 04:15:29,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:29,113 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:29,114 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:29,114 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:29,114 INFO L791 eck$LassoCheckResult]: Stem: 1915#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1817#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret22#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1818#L483 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1820#L476 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; 1747#L491 main_#t~ret22#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret22#1;havoc main_#t~ret22#1; 1748#L447 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1794#L421 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1799#L276-2 [2022-02-21 04:15:29,114 INFO L793 eck$LassoCheckResult]: Loop: 1799#L276-2 assume !false; 1899#L277 assume test_~splverifierCounter~0#1 < 4; 1920#L278 test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 1953#L286 assume !(0 != test_~tmp~3#1); 1952#L286-2 test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 1943#L296 assume !(0 != test_~tmp___0~1#1); 1942#L296-2 test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 1937#L306 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1938#L314 assume !(0 != test_~tmp___1~0#1); 1854#L314-2 assume { :begin_inline_timeShift } true; 1770#L69 assume !(0 != ~pumpRunning~0); 1771#L69-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1896#L127 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1878#L101-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 1879#L955-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1758#L960-1 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 1759#L229-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1888#L229-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1894#L235-1 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 2002#L105-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1892#L93-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1858#L101-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1780#L127-1 assume { :end_inline_processEnvironment } true; 1912#L76-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret20#1, __utac_acc__Specification1_spec__1_#t~ret21#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 1913#L915-1 __utac_acc__Specification1_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret20#1;havoc __utac_acc__Specification1_spec__1_#t~ret20#1; 1801#L344 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); 1802#L344-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2026#L86 assume { :end_inline_timeShift } true; 1799#L276-2 [2022-02-21 04:15:29,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:29,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:15:29,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:29,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761486374] [2022-02-21 04:15:29,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:29,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:29,125 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:29,152 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:29,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:29,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1563463747, now seen corresponding path program 1 times [2022-02-21 04:15:29,153 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:29,153 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614237022] [2022-02-21 04:15:29,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:29,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:29,170 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:29,177 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:29,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:29,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1480521601, now seen corresponding path program 1 times [2022-02-21 04:15:29,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:29,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665794757] [2022-02-21 04:15:29,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:29,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:29,191 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:29,201 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:31,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:31 BoogieIcfgContainer [2022-02-21 04:15:31,769 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:31,769 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:31,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:31,770 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:31,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:27" (3/4) ... [2022-02-21 04:15:31,772 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:31,802 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:31,802 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:31,803 INFO L158 Benchmark]: Toolchain (without parser) took 4962.94ms. Allocated memory was 96.5MB in the beginning and 174.1MB in the end (delta: 77.6MB). Free memory was 62.4MB in the beginning and 123.2MB in the end (delta: -60.8MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:31,803 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:31,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.81ms. Allocated memory is still 96.5MB. Free memory was 62.2MB in the beginning and 60.2MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:15:31,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.82ms. Allocated memory is still 96.5MB. Free memory was 60.2MB in the beginning and 56.0MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:31,804 INFO L158 Benchmark]: Boogie Preprocessor took 31.80ms. Allocated memory is still 96.5MB. Free memory was 56.0MB in the beginning and 53.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:31,804 INFO L158 Benchmark]: RCFGBuilder took 529.18ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 53.5MB in the beginning and 87.6MB in the end (delta: -34.0MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2022-02-21 04:15:31,805 INFO L158 Benchmark]: BuchiAutomizer took 3932.38ms. Allocated memory was 117.4MB in the beginning and 174.1MB in the end (delta: 56.6MB). Free memory was 87.6MB in the beginning and 126.3MB in the end (delta: -38.7MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. [2022-02-21 04:15:31,805 INFO L158 Benchmark]: Witness Printer took 32.71ms. Allocated memory is still 174.1MB. Free memory was 126.3MB in the beginning and 123.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:31,806 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.81ms. Allocated memory is still 96.5MB. Free memory was 62.2MB in the beginning and 60.2MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.82ms. Allocated memory is still 96.5MB. Free memory was 60.2MB in the beginning and 56.0MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.80ms. Allocated memory is still 96.5MB. Free memory was 56.0MB in the beginning and 53.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 529.18ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 53.5MB in the beginning and 87.6MB in the end (delta: -34.0MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3932.38ms. Allocated memory was 117.4MB in the beginning and 174.1MB in the end (delta: 56.6MB). Free memory was 87.6MB in the beginning and 126.3MB in the end (delta: -38.7MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. * Witness Printer took 32.71ms. Allocated memory is still 174.1MB. Free memory was 126.3MB in the beginning and 123.2MB 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 396 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 396 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 338 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 338 mSDsluCounter, 682 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 282 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 400 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 276]: 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@7629ec59=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e079e4b=0, tmp___0=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, tmp___0=0, methaneLevelCritical=0, retValue_acc=0, tmp=1, \result=0, retValue_acc=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7105a67e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c1eacd3=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2626ecff=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3208e102=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55b9bb5a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@143fcd88=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b864a47=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27a191e9=0, tmp___2=0, cleanupTimeShifts=4, tmp=0, tmp=1, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, \result=0, tmp=0, tmp=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 276]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L362] int cleanupTimeShifts = 4; [L674] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L872] int waterLevel = 1; [L873] int methaneLevelCritical = 0; [L438] int retValue_acc ; [L439] int tmp ; [L443] FCALL select_helpers() [L444] FCALL select_features() [L445] CALL, EXPR valid_product() [L487] int retValue_acc ; [L490] retValue_acc = 1 [L491] return (retValue_acc); [L445] RET, EXPR valid_product() [L445] tmp = valid_product() [L447] COND TRUE \read(tmp) [L449] FCALL setup() [L450] CALL runTest() [L429] CALL test() [L267] int splverifierCounter ; [L268] int tmp ; [L269] int tmp___0 ; [L270] int tmp___1 ; [L271] int tmp___2 ; [L274] splverifierCounter = 0 Loop: [L276] COND TRUE 1 [L278] COND TRUE splverifierCounter < 4 [L284] tmp = __VERIFIER_nondet_int() [L286] COND FALSE !(\read(tmp)) [L294] tmp___0 = __VERIFIER_nondet_int() [L296] COND FALSE !(\read(tmp___0)) [L304] tmp___2 = __VERIFIER_nondet_int() [L306] COND FALSE !(\read(tmp___2)) [L312] tmp___1 = __VERIFIER_nondet_int() [L314] COND FALSE !(\read(tmp___1)) [L323] CALL timeShift() [L69] COND FALSE !(\read(pumpRunning)) [L76] COND TRUE \read(systemActive) [L78] CALL processEnvironment() [L124] int tmp ; [L127] COND FALSE !(\read(pumpRunning)) [L142] CALL processEnvironment__wrappee__highWaterSensor() [L98] int tmp ; [L101] COND TRUE ! pumpRunning [L103] CALL, EXPR isHighWaterLevel() [L221] int retValue_acc ; [L222] int tmp ; [L223] int tmp___0 ; [L227] CALL, EXPR isHighWaterSensorDry() [L952] int retValue_acc ; [L955] COND TRUE waterLevel < 2 [L956] retValue_acc = 1 [L957] return (retValue_acc); [L227] RET, EXPR isHighWaterSensorDry() [L227] tmp = isHighWaterSensorDry() [L229] COND TRUE \read(tmp) [L230] tmp___0 = 0 [L234] retValue_acc = tmp___0 [L235] return (retValue_acc); [L103] RET, EXPR isHighWaterLevel() [L103] tmp = isHighWaterLevel() [L105] COND FALSE !(\read(tmp)) [L111] FCALL processEnvironment__wrappee__base() [L142] RET processEnvironment__wrappee__highWaterSensor() [L78] RET processEnvironment() [L84] CALL __utac_acc__Specification1_spec__1() [L337] int tmp ; [L338] int tmp___0 ; [L342] CALL, EXPR isMethaneLevelCritical() [L911] int retValue_acc ; [L914] retValue_acc = methaneLevelCritical [L915] return (retValue_acc); [L342] RET, EXPR isMethaneLevelCritical() [L342] tmp = isMethaneLevelCritical() [L344] COND FALSE !(\read(tmp)) [L84] RET __utac_acc__Specification1_spec__1() [L323] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:31,843 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)